USRE35643E - Lead acid battery rejuvenator and charger - Google Patents
Lead acid battery rejuvenator and charger Download PDFInfo
- Publication number
- USRE35643E USRE35643E US08/322,747 US32274794A USRE35643E US RE35643 E USRE35643 E US RE35643E US 32274794 A US32274794 A US 32274794A US RE35643 E USRE35643 E US RE35643E
- Authority
- US
- United States
- Prior art keywords
- battery
- signal
- transistors
- connection
- circuit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000002253 acid Substances 0.000 title claims abstract description 28
- 230000003716 rejuvenation Effects 0.000 claims description 51
- 239000003990 capacitor Substances 0.000 claims description 31
- 229910000859 α-Fe Inorganic materials 0.000 claims description 10
- 230000003287 optical effect Effects 0.000 claims description 8
- 238000003491 array Methods 0.000 claims description 7
- 239000000919 ceramic Substances 0.000 claims description 6
- 230000003213 activating effect Effects 0.000 claims description 5
- 238000006243 chemical reaction Methods 0.000 claims 10
- 230000005672 electromagnetic field Effects 0.000 claims 4
- 239000000463 material Substances 0.000 claims 4
- 238000000034 method Methods 0.000 claims 4
- 230000008878 coupling Effects 0.000 claims 2
- 238000010168 coupling process Methods 0.000 claims 2
- 238000005859 coupling reaction Methods 0.000 claims 2
- 150000002500 ions Chemical class 0.000 abstract description 3
- 239000002184 metal Substances 0.000 abstract description 3
- KEQXNNJHMWSZHK-UHFFFAOYSA-L 1,3,2,4$l^{2}-dioxathiaplumbetane 2,2-dioxide Chemical compound [Pb+2].[O-]S([O-])(=O)=O KEQXNNJHMWSZHK-UHFFFAOYSA-L 0.000 abstract description 2
- 230000000630 rising effect Effects 0.000 abstract description 2
- 230000004913 activation Effects 0.000 description 4
- YADSGOSSYOOKMP-UHFFFAOYSA-N dioxolead Chemical compound O=[Pb]=O YADSGOSSYOOKMP-UHFFFAOYSA-N 0.000 description 2
- 239000003792 electrolyte Substances 0.000 description 2
- PIJPYDMVFNTHIP-UHFFFAOYSA-L lead sulfate Chemical compound [PbH4+2].[O-]S([O-])(=O)=O PIJPYDMVFNTHIP-UHFFFAOYSA-L 0.000 description 2
- 230000001351 cycling effect Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 229910000464 lead oxide Inorganic materials 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- YEXPOXQUZXUXJW-UHFFFAOYSA-N oxolead Chemical compound [Pb]=O YEXPOXQUZXUXJW-UHFFFAOYSA-N 0.000 description 1
- 230000019635 sulfation Effects 0.000 description 1
- 238000005670 sulfation reaction Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/44—Methods for charging or discharging
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
- H02J7/0014—Circuits for equalisation of charge between batteries
- H02J7/0019—Circuits for equalisation of charge between batteries using switched or multiplexed charge circuits
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/02—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J2207/00—Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J2207/20—Charging or discharging characterised by the power electronics converter
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
Description
______________________________________ Capacitors 43 450 μf at 2053A and 53B volts Resistors 57, 58, 59 and 60 1 1K Ohms Diodes Amp Diodes Resistor 64 1,500Ohms Resistor 65 5 Ohms ______________________________________
Claims (7)
- terminals of a lead acid battery..!.. .19. The combination rejuvenator and trickle charger of claim 3, wherein said DC to AC inverter multi-vibrator circuit includes two transistors having a common electrode connection of first electrodes of said transistors connected to a first side of a capacitor having a second side connected to a tap of said primary coil; said power source circuit having a first lead and a second lead with said first lead connected to the junction of said capacitor and said tap of said primary coil; and with said second lead connected to the junction of said first electrodes of said transistors common connection and said capacitor; with opposite ends of said primary coil connected to second electrodes of said transistors and to resistors connected to the bases, respectively, of said transistors; an output signal pulse transformer with a primary coil and with said second set of opposite terminals of said four diode rectifier bridge circuit connected to opposite ends of the primary coil of said output signal pulse transformer; said output signal pulse transformer having said primary coil, a ferrite ceramic core element having fast electromagnetic field change characteristics as an aid for the transformer being a fast rise transformer, and a secondary coil; a diode connected between opposite ends of said output signal pulse transformer secondary coil; connection of said AC to DC conversion means to one end of said output signal pulse transformer secondary coil and through said coil to battery positive terminal connection means; said AC transference means is an input power transformer with a primary coil connected to said AC power connection means, a ferrite material core element, and a signal secondary coil with connection means to battery negative connector means..!.. .20. The combination rejuvenator and trickle charger of claim 19, wherein said connection means to battery negative connection means includes two alternately connectable coil taps from, and the bottom end of, said AC signal secondary coil connected, respectively, to the six volt contact, the twelve volt contact and twenty four volt contact of a switch with its switch arm connected to said battery negative connection means..!.. .21. The combination rejuvenator and trickle charger of claim 20, wherein said coil tap connected to said twelve volt contact is connected to said DC to AC inverter multi-vibrator circuit..!.. .22. The combination rejuvenator and trickle charger of claim 7, wherein there are a plurality of pulse circuits/duplicates of each other, including said DC to AC inverter multi-vibrator circuit, said transformer, said four diode bridge output connectable, respectively, to a plurality of sets of battery connections equal in number to the plurality of said pulser circuits; control means for activating one of said plurality of pulser circuits at a time including, a timer circuit, a clock circuit, a decade counter circuit, and a buffer driver circuit having a plurality of outputs connected to said plurality of pulser circuits for individually activating said plurality of pulser circuits one at a time through repeated cycles of operation..!.. .23. The combination rejuvenator and trickle charger of claim 22, wherein each of said signal pulser circuits include two NPN transistors interconnected, in an input section prior to said DC to AC inverter multi-vibrator circuit, to give sharp turn on and turn off of the signal pulser circuits; with a first NPN transistor having a signal input base connection, an emitter to base connection with a second NPN transistor, a collector connection in common with the collector of the second NPN transistor to a voltage bias line, and a voltage signal output line connection from the output emitter of said second NPN transistor to said inverter multi-vibrator circuit..!.. .24. The combination rejuvenator and trickle charger of claim 22, wherein a plurality of batteries equal in number to the sets of battery connections and to the plurality of said pulser circuits are series connected between the positive terminal of a standard battery DC charging system and ground common to said standard battery DC charging system..!.. .25. The combination rejuvenator and trickle charger of claim 7, wherein there is one signal pulse circuit including DC to AC inverter multi-vibrator circuit, said transformer, said four diode bridge circuit output selectively connectable singularly sequentially to a plurality of sets of battery connections where a plurality of batteries are serially connected; circuit control means for switched control connection of the pulse signal output of said signal pulser circuit successively through said sets of battery connections at time control set cycles of operation..!.. .26. The combination rejuvenator and trickle charger of claim 25, wherein said control means includes, control circuitry interconnected timers, a counter circuit, flip flop circuits, optical coupler arrays and transistor arrays; with switch means selectively and cyclically connecting the fast rise time pulse output, in the range of 2,000 to 10,000 cycles per second or more, of the fast rise time pulse output of the signal pulser circuit to one battery set of connections at a time..!.. .27. The combination rejuvenator and trickle charger of claim 26, wherein batteries connected to said sets of battery connections are series connected; and are series connected between the positive terminal of a standard DC charging system and ground common to said standard battery DC charging system..!.. .28. The combination rejuvenator and trickle charger of claim 27, wherein said combination rejuvenator and trickle charger includes, a battery selector switch for repeated cycles of rejuvenator pulse signal application to battery connection sets through the range of connection sets switch selected..!.. .29. The combination rejuvenator and trickle charger of claim 28, wherein a cycle timing switch is settable to desired
- rejuvenating pulse output time cycles of operation..!..Iadd.30. A combination rejuvenator and trickle charger for lead acid batteries comprising; AC power connection means; AC transference means; AC to DC conversion means; a DC to AC inverter multi-vibrator circuit connected to said AC to DC conversion means and to said AC transference means; a transformer with a primary coil a part of said DC to AC inverter multi-vibrator circuit, and having a secondary coil; a four diode rectifier bridge circuit having a first set of opposite terminals connected to said secondary coil, and a second set of opposite terminals; first connection means for connecting a first one of the terminals of said second set of bridge opposite terminals to a first terminal of a lead acid battery and second connection means for connecting the second of the terminals of said second set of bridge opposite terminals to the lead acid battery; one of said first and second connection means includes connection of terminal means of said second set of bridge opposite terminals through circuit means to a battery terminal connector. .Iaddend..Iadd.31. The combination rejuvenator and trickle charger of claim 30, wherein there is approximately a 1 to 1 turns ratio with approximately the same turns in said secondary coil as there is in said primary coil of said transformer. .Iaddend..Iadd.32. The combination rejuvenator and trickle charger of claim 31 wherein the core of said transformer is a ferrite ceramic core element having fast electromagnetic field change characteristics as an aid for the transfer being a fast rise time transformer in the approximate order of two nano seconds per volt rise. .Iaddend..Iadd.33. The combination rejuvenator and trickle charger of claim 32 wherein said DC to AC inverter multi-vibrator circuit includes two transistors having a common electrode connection of first electrodes of said transistors connected to a first side of a capacitor having a second side connected to a tap of said primary coil; said power source circuit having a first lead and a second with said first lead connected to the junction of said first electrodes of said transistors common connection and said capacitor; with opposite ends of said primary coil connected to second electrodes of said transistors and to resistors connected to the bases, respectively, of said transistors. .Iaddend..Iadd.34. The combination rejuvenator and trickle charger of claim 33 wherein said two transistors in said DC to AC inverter multi-vibrator circuit are NPN type transistors with said common electrode connection of said transistors a connection between the emitters of said two transistors. .Iaddend..Iadd.35. The combination rejuvenator and trickle charger of claim 34 wherein the opposite ends of said primary coil are connected to the collectors of said NPN transistors and through said resistors, respectively, to the base of the opposite transistor from the collector connections of said two transistors. .Iaddend..Iadd.36. The combination rejuvenator and trickle charger of claim 35 wherein a resistor that is a current limiting resistor is included in connection means to the battery. .Iaddend..Iadd.37. The combination rejuvenator and trickle charger of claim 31 wherein said DC to AC inverter multi-vibrator circuit includes two transistors having a common electrode connection of first electrodes of said transistors connected to a first side of a capacitor having a second side connected to a tap of said primary coil; said power source circuit having a first lead and a second lead with said first lead connected to the junction of said capacitor and said tap of said primary coil; and with said second lead connected to the junction of said first electrodes of said transistors common connection and said capacitor; with opposite ends of said primary coil connected to second electrodes of said transistors and to resistors connected to the bases, respectively, of said transistors; and with a resistor serving as a current limiting resistor in connection means to one of two terminals of a lead acid battery. .Iaddend..Iadd.38. The combination rejuvenator and trickle charger of claim 37, wherein said two transistors in said DC to AC inverter multi-vibrator circuit are NPN type transistors with said common electrode connection of said transistors a connection between the emitters of said two transistors. .Iaddend..Iadd.39. The combination rejuvenator and trickle charger of claim 38 wherein opposite ends of said primary coil are connected to the collectors of said NPN transistors and through said resistors, respectively, to the base of the opposite transistor from the collector connections of said two transistors. .Iaddend..Iadd.40. The combination rejuvenator and trickle charger of claim 39 wherein said circuit means comprises a NPN transistor and diode means having an anode connected to the base of said transistor and a cathode connected to said battery terminal connector. .Iaddend..Iadd.41. The combination rejuvenator and trickle charger of claim 40 wherein said diode means is a plurality of diodes serially connected diode cathode to diode anode. .Iaddend..Iadd.42. The combination rejuvenator and trickle charger of claim 41 wherein said diode means is two diodes serially connected diode cathode to diode anode. .Iaddend..Iadd.43. The combination rejuvenator and trickle charger of claim 40 wherein said AC transference means is an input power transformer with a primary coil connected to said AC power connection means, a ferrite material core element, and an AC signal tapped secondary coil; said AC to DC conversion means is a rectifier diode connected anode to the top of said AC signal tapped secondary coil; switch means includes switch contact means connected to AC signal tap means, and a switch contact connected to the bottom of said AC signal tapped secondary coil; and DC connection means for interconnecting rectified DC from the cathode of said rectifier diode to said inverter multi-vibrator circuit. .Iaddend..Iadd.44. The combination rejuvenator and trickle charger of claim 43 wherein said switch contact means is connected to a center tap of said AC signal tapped secondary coil; and connectable by said switch means to the negative terminal of a battery connected for being rejuvenated and charged. .Iaddend..Iadd.45. The combination rejuvenator and trickle charger of claim 44, wherein said switch means is switchable from connection to said center tap for treating of a six volt battery to connection to the bottom of said AC signal tapped secondary coil for rejuvenation treatment and charging of a twelve volt battery. .Iaddend..Iadd.46. The combination rejuvenator and trickle charger of claim 45 wherein a negative output terminal of said four diode AC to DC rectifying bride circuit is also connected to the negative terminal of a battery being treated; and the bottom of said AC tapped secondary coil is connected to said inverter multi-vibrator circuit. .Iaddend..Iadd.47. The combination rejuvenator and trickle charger of claim 46, wherein DC connection means is provided switch connectable to said DC to AC inverter multi-vibrator circuit; and said AC to DC conversion means via said DC connection means is switch connectable to line means to one of two terminals of a lead acid battery. .Iaddend..Iadd.48. The combination rejuvenator and trickle charger of claim 32, wherein said DC to AC inverter multi-vibrator circuit includes two transistors having a common electrode connection of first electrodes of said transistors connected to a first side of a capacitor having a second side connected to a tap of said primary coil; said power source circuit having a first lead and a second lead with said first lead connected to the junction of said capacitor and said tap of said primary coil; and with said second lead connected to the junction of said first electrodes of said transistors common connection and said capacitor; with opposite ends of said primary coil connected to second electrodes of said transistors and to resistors connected to the bases, respectively, of said transistors; and wherein said circuit means including an output signal pulse transformer with a primary coil and with said second set of opposite terminals of said four diode rectifier bridge circuit connected to opposite ends of the primary coil of said output signal pulse transformer; said output signal pulse transformer having said primary coil, a ferrite ceramic core element having fast electromagnetic field change characteristics as an aid for the transformer being a fast rise transformer, and a secondary coil; a diode connected between opposite ends of said output signal pulse transformer secondary coil; connection of said AC to DC conversion means to one end of said output signal pulse transformer secondary coil and through said coil to battery positive terminal connection means; said AC transference means is an input power transformer with a primary coil connected to said AC power connection means, a ferrite material core element, and a signal secondary coil with
- connection means to battery negative connector means. .Iaddend..Iadd.49. The combination rejuvenator and trickle charger of claim 48, wherein said connection means to battery negative connection means includes two alternately connectable coil taps from, and the bottom end of, said AC signal secondary coil connected, respectively, to the six volt contact, the twelve volt contact and twenty four volt contact of a switch with its switch arm connected to said battery negative connection means. .Iaddend..Iadd.50. The combination rejuvenator and trickle charger of claim 49, wherein said coil tap connected to said twelve volt contact is connected to said DC to AC inverter multi-vibrator circuit. .Iaddend..Iadd.51. The combination rejuvenator and trickle charger of claim 36, wherein there are a plurality of pulse circuits/duplicates of each other, including said DC to AC inverter multi-vibrator circuit, said transformer, said four diode bridge output connectable, respectively, to a plurality of sets of battery connections equal in number to the plurality of said pulser circuits; control means for activating one of said plurality of pulser circuits at a time including, a timer circuit, a clock circuit, a decade counter circuit, and a buffer driver circuit having a plurality of outputs connected to said plurality of pulser circuits for individually activating said plurality of pulser circuits one at a time through repeated cycles of operation. .Iaddend..Iadd.52. The combination rejuvenator and trickle charger of claim 51, wherein each of said signal pulser circuits include two NPN transistors interconnected, in an input section prior to said DC to AC inverter multi-vibrator circuit, to give sharp turn on and turn off of the signal pulser circuits; with a first NPN transistor having a signal input base connection, an emitter to base connection with a second NPN transistor, a collector connection in common with the collector of the second NPN transistor to a voltage bias line, and a voltage signal output line connection from the output emitter of said second NPN transistor to said inverter multi-vibrator circuit. .Iaddend..Iadd.53. The combination rejuvenator and trickle charger of claim 51, wherein a plurality of batteries equal in number to the sets of battery connections and to the plurality of said pulser circuits are series connected between the positive terminal of a standard battery DC charging system and ground common to said standard battery DC charging system. .Iaddend..Iadd.54. The combination rejuvenator and trickle charger of claim 36, wherein there is one signal pulse circuit including DC to AC inverter multi-vibrator circuit, said transformer, said four diode bridge circuit output selectively connectable singularly sequentially to a plurality of sets of battery connections where a plurality of batteries are serially connected; circuit control means for switched control connection of the pulse signal output of said signal pulser circuit successively through said sets of battery connections at time control set cycles of operation. .Iaddend..Iadd.55. The combination rejuvenator and trickle charger of claim 54, wherein said control means includes, control circuitry interconnected timers, a counter circuit, flip flop circuits, optical coupler arrays and transistor arrays; with switch means selectively and cyclically connecting the fast rise time pulse output, in the range of 2,000 to 10,000 cycles per second or more, of the fast rise time pulse output of the signal pulser circuit to one battery set of
- connections at a time. .Iaddend..Iadd.56. The combination rejuvenator and trickle charger of claim 55, wherein batteries connected to said sets of battery connections are series connected; and are series connected between the positive terminal of a standard DC charging system and ground common to said standard battery DC charging system. .Iaddend..Iadd.57. The combination rejuvenator and trickle charger of claim 56, wherein said combination rejuvenator and trickle charger includes, a battery selector switch for repeated cycles of rejuvenator pulse signal application to battery connection sets through the range of connection sets switch selected. .Iaddend..Iadd.58. The combination rejuvenator and trickle charger of claim 57, wherein a cycle timing switch is settable to desired
- rejuvenating pulse output time cycles of operation. .Iaddend..Iadd.59. Apparatus for removing deposits from the plates of a plate-type battery having a known theoretical voltage and at least a positive terminal, comprising:means for generating a rejuvenation signal comprised of a positive voltage pulse train having a predetermined frequency of between two and ten thousand pulses per second, said means including means for generating pulses having a voltage level at least as high as the known theoretical voltage for the battery, a rise time of substantially five megavolts per second and a pulse width of less than approximately five microseconds; andconnector means for applying the generated rejuvenation signal to the positive terminal of the plate-type battery to remove deposits from the plates of the battery. .Iaddend..Iadd.60. Apparatus for charging and for removing deposits from the plates of a plate-type battery having a known theoretical voltage and at least a positive terminal, comprising:means for generating a rejuvenation signal comprised of a positive voltage pulse train having a predetermined frequency of between two and ten thousand pulses per second, said means including means for generating pulses having a voltage level at least as high as the known theoretical voltage for the battery, a rise time of substantially five megavolts per second and a pulse width of less than approximately five microseconds;means for generating a positive voltage charging signal;means for combining the rejuvenation signal and the charging signal to generate an output signal; andconnector means for applying the generated output signal to the positive terminal of the plate-type battery to remove deposits from the plates of the battery and charge the battery. .Iaddend..Iadd.61. The apparatus as in claim 60 wherein the means for generating the charging signal comprises means for outputting a rectified DC voltage. .Iaddend..Iadd.62. The apparatus as in claim 60 wherein the means for combining comprises means for switching between the rejuvenation signal and the charging signal in the output signal applied to the battery so that the apparatus alternates between a deposit removing mode and a charging mode. .Iaddend..Iadd.63. The apparatus as in claim 60 wherein the means for combining comprises means for superimposing the rejuvenation signal on the charging signal in the output signal applied to the battery so that the apparatus simultaneously operates in a deposit removing mode and a charging mode. .Iaddend..Iadd.64. A method for removing deposits from the plates of a plate-type battery having a known theoretical voltage and at least a positive battery terminal, comprising the steps of:generating a rejuvenation signal comprised of a positive voltage pulse train having a predetermined frequency of between two and ten thousand hertz, the step of generating including the step of generating pulses having a predetermined voltage level at least as high as a known theoretical voltage for the battery, a rise time of substantially five megavolts per second, and a pulse width of less than approximately five microseconds; andcoupling the rejuvenation signal to the positive terminal of the battery to
- be rejuvenated. .Iaddend..Iadd.65. A method for removing deposits from the plates of a plate-type battery and charging the battery having a known theoretical voltage and at least a positive battery terminal, comprising the steps of:generating a rejuvenation signal comprised of a positive voltage pulse train having a predetermined frequency of between two and ten thousand pulses per second, wherein the pulses in the pulse train have a voltage level at least as high as the known theoretical voltage for the battery, a rise time of substantially five megavolts per second, and a pulse width of less than approximately five microseconds to remove deposits from the plates of the plate-type battery;generating a positive voltage charging signal having a predetermined charging voltage level;combining the rejuvenation signal with the charging signal to generate an output signal; andcoupling the output signal to the positive terminal of the battery to both remove deposits from the plates of the battery and charge the battery. .Iaddend..Iadd.66. The method as in claim 65 wherein the step of combining comprises the step of:alternating between the charging signal and the rejuvenation signal to alternate between a corresponding deposit removing mode and a charging mode. .Iaddend..Iadd.67. The method for rejuvenating as in claim 65 wherein the step of combining comprises the step of:superimposing the rejuvenation signal on the charging signal to simultaneously operate in a deposit removing mode and a charging mode. .Iaddend..Iadd.68. Apparatus for charging and removing deposit from the plates of a plate-type battery having at least a positive terminal, comprising:means for generating a rejuvenation signal comprised of a positive voltage pulse train having a predetermined frequency of between two and ten thousand pulses per second, said means including means for generating pulses having a voltage level at least as high as the known theoretical voltage for the battery, a pulse width of less than approximately five microseconds, and a rise time of substantially five megavolts per second to remove deposits from the plates of the plate-type battery;means for generating a charging signal having a substantially constant positive voltage;means for receiving the rejuvenation signal and the charging signal and for switching between the rejuvenating and charging signals to generate an output signal; andconnector means for applying the generated output signal to the positive terminal of the plate-type battery to alternate between removing deposits
- from the plates and charging the battery. .Iaddend..Iadd.69. Apparatus for charging and removing deposits from the plates of a plate-type battery having at least a positive terminal, comprising:means for generating a rejuvenation signal comprised of a positive voltage pulse train having a predetermined frequency of between two and ten thousand pulses per second, said means including means for generating pulses having a voltage level at least as high as the known theoretical voltage for the battery, a pulse width of less than approximately five microseconds, and a rise time of substantially five megavolts per second to remove deposits from the plates of the plate-type battery;means for generating a charging signal having a substantially constant positive voltage;means for receiving the rejuvenation signal and the charging signal and for superimposing the rejuvenation signal and the charging signal to generate an output signal; andconnector means for applying the generated output signal to the positive terminal of the plate-type battery to simultaneously remove deposits from the plates and charge the battery. .Iaddend.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/322,747 USRE35643E (en) | 1990-10-16 | 1994-10-13 | Lead acid battery rejuvenator and charger |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/598,133 US5063341A (en) | 1990-10-16 | 1990-10-16 | Lead acid battery rejuvenator and charger |
US90968192A | 1992-07-07 | 1992-07-07 | |
US9374393A | 1993-07-20 | 1993-07-20 | |
US08/322,747 USRE35643E (en) | 1990-10-16 | 1994-10-13 | Lead acid battery rejuvenator and charger |
Related Parent Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US07/598,133 Reissue US5063341A (en) | 1990-10-16 | 1990-10-16 | Lead acid battery rejuvenator and charger |
US9374393A Continuation | 1990-10-16 | 1993-07-20 |
Publications (1)
Publication Number | Publication Date |
---|---|
USRE35643E true USRE35643E (en) | 1997-10-28 |
Family
ID=27377569
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US08/322,747 Expired - Lifetime USRE35643E (en) | 1990-10-16 | 1994-10-13 | Lead acid battery rejuvenator and charger |
Country Status (1)
Country | Link |
---|---|
US (1) | USRE35643E (en) |
Cited By (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5905363A (en) * | 1996-04-24 | 1999-05-18 | Gm Racing Modellsportvertrieb Gmbh | Method for reducing the internal resistance of rechargeable batteries |
US6172486B1 (en) * | 1999-09-24 | 2001-01-09 | The United States Of America As Represented By The Secretary Of The Army | Battery life extender with engine heat |
US6469473B1 (en) | 2001-03-16 | 2002-10-22 | Battery Performance Technologies, Inc. | Method and apparatus for using pulse current to extend the functionality of a battery |
US6566844B1 (en) * | 1999-10-06 | 2003-05-20 | Battery Performance Technologies, Inc. | Method and apparatus for extending the functionality of a battery |
US20030141845A1 (en) * | 2002-01-25 | 2003-07-31 | Michael Krieger | High frequency battery charger and method of operating same |
US20040130298A1 (en) * | 2002-02-19 | 2004-07-08 | Michael Krieger | Microprocessor controlled booster apparatus with polarity protection |
WO2004070909A1 (en) * | 2003-02-03 | 2004-08-19 | Commonwealth Scientific And Industrial Research Organisation | Pulse generation device for charging a valve-regulated lead-acid battery |
WO2004100338A1 (en) * | 2003-05-12 | 2004-11-18 | Envirolec Limited Llc | Lead battery conditioner |
US20050017677A1 (en) * | 2003-07-24 | 2005-01-27 | Burton Andrew F. | Method and system for providing induction charging having improved efficiency |
US6856118B1 (en) * | 1999-06-15 | 2005-02-15 | Holgia Ab | Method and device for batteries |
EP1544937A1 (en) * | 2002-09-24 | 2005-06-22 | Eruma Co. Ltd. | Method for removing lead sulfate film formed in lead-acid battery |
US20090085524A1 (en) * | 2007-09-27 | 2009-04-02 | Pulsetech Products Corporation | Battery charging circuit |
US7808211B2 (en) | 2003-10-23 | 2010-10-05 | Schumacher Electric Corporation | System and method for charging batteries |
US8120324B2 (en) * | 2006-02-27 | 2012-02-21 | Advanced Battery Management, Llc | Method and apparatus to provide battery rejuvenation at or near resonance |
US9293936B2 (en) * | 2011-06-17 | 2016-03-22 | Yura Corporation Co., Ltd. | Power relay assembly driving apparatus and driving method thereof |
US11024890B2 (en) * | 2014-06-26 | 2021-06-01 | Robert Bosch Gmbh | Transmitting device for transmitting electrical signals from at least one galvanic cell to at least one electronic evaluating unit |
WO2022272187A1 (en) * | 2020-06-24 | 2022-12-29 | Chih Hung Lin | Charging device and method of charging and rejuvenating battery |
Citations (33)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB889306A (en) * | 1957-08-22 | 1962-02-14 | Philips Electrical Ind Ltd | Improvements in battery-charging apparatus |
DE1943681A1 (en) * | 1969-08-28 | 1971-03-11 | Sandelowsky Sally Dr Ing | Method for restoring the state of charge of batteries, especially in vehicles |
US3629681A (en) * | 1969-04-10 | 1971-12-21 | Sevcon Eng Ltd | Circuits for controlled battery chargers |
US3761795A (en) * | 1972-01-13 | 1973-09-25 | Legg Ltd | Battery charging apparatus |
US3816807A (en) * | 1973-07-18 | 1974-06-11 | Gen Electric | Impedance controlled battery charger and method of charging with monitoring of a.c. answer signal |
US3839089A (en) * | 1973-05-18 | 1974-10-01 | Esb Inc | Water activated lead acid storage battery cell having dry discharged electrodes |
FR2227147A1 (en) * | 1973-04-24 | 1974-11-22 | Lehry Jean | Battery vehicle with built in charger - some motoring and braking components used for battery charging also |
DE2506828A1 (en) * | 1974-02-19 | 1975-08-21 | Robin Alexander Jessie | BATTERY CHARGER OR -ARRANGEMENT |
US3963976A (en) * | 1974-07-08 | 1976-06-15 | Utah Research & Development Co. | Pulsed current battery charging method and apparatus |
DE2557010A1 (en) * | 1975-12-18 | 1977-06-23 | Varta Batterie | Gas tight nickel-cadmium battery charger - starts charge with constant current and then uses current pulses after pause |
SU639053A1 (en) * | 1973-04-17 | 1978-12-25 | Pyatnitskij Igor | Lead-acid storage battery charging method |
US4213080A (en) * | 1977-04-07 | 1980-07-15 | Chloride Group Limited | Automatic electric battery charging apparatus |
GB1578922A (en) * | 1977-05-24 | 1980-11-12 | Contrology Tech Ltd | Battery charging equipment |
US4274044A (en) * | 1978-06-30 | 1981-06-16 | U.S. Philips Corporation | DC-DC Converter for charging a battery by means of a solar cell |
SU892577A2 (en) * | 1979-09-10 | 1981-12-23 | Государственный Научно-Исследовательский Энергетический Институт Им.Г.М.Кржижановского | Device for charging storage battery with asymmetric current |
US4390940A (en) * | 1980-06-26 | 1983-06-28 | Societe Nationale Industrielle Aerospatiale | Process and system for producing photovoltaic power |
US4626093A (en) * | 1984-06-28 | 1986-12-02 | Nippon Kogaku K.K. | Flash control device for electronic flash apparatus |
US4644256A (en) * | 1982-07-16 | 1987-02-17 | Icotron S.A. Industria De Componentes Electronicos | System driven by solar energy for pumping liquids |
US4695935A (en) * | 1985-06-28 | 1987-09-22 | Alcatel N.V. | Power supply |
US4736150A (en) * | 1986-07-09 | 1988-04-05 | The United States Of America As Represented By The Secretary Of The Army | Method of increasing the useful life of rechargeable lithium batteries |
US4740739A (en) * | 1987-02-10 | 1988-04-26 | Premier Engineered Products Corporation | Battery charging apparatus and method |
US4786851A (en) * | 1987-03-04 | 1988-11-22 | Kanegafuchi Kagaku Kogyo Kabushiki Kaisha | Battery charger |
US4795537A (en) * | 1987-04-10 | 1989-01-03 | H.P.G. Research Ltd. | Electrical conditioning system for electrodes in an electrolysis cell |
US4871959A (en) * | 1988-07-15 | 1989-10-03 | Gali Carl E | Solar trickle charger for lead acid batteries |
US4878007A (en) * | 1986-12-01 | 1989-10-31 | Brg Mechatronikai Vallalat | Method for charging nickel-cadmium batteries and circuit arrangement for carrying out the method |
JPH01311830A (en) * | 1988-03-31 | 1989-12-15 | Sanyo Electric Co Ltd | Charging equipment |
US4931367A (en) * | 1988-10-28 | 1990-06-05 | C & D Charter Power Systems, Inc. | Low float technology battery |
US5027051A (en) * | 1990-02-20 | 1991-06-25 | Donald Lafferty | Photovoltaic source switching regulator with maximum power transfer efficiency without voltage change |
US5043650A (en) * | 1988-02-26 | 1991-08-27 | Black & Decker Inc. | Battery charger |
US5045769A (en) * | 1989-11-14 | 1991-09-03 | The United States Of America As Represented By The Secretary Of The Navy | Intelligent battery charging system |
US5140250A (en) * | 1988-08-01 | 1992-08-18 | Motronix Limited | Protective circuit for battery powered engine ignition system |
US5250904A (en) * | 1991-08-08 | 1993-10-05 | Advanced Power Technology Inc. | Device for predicting imminent failure of a stationary lead acid battery in a float mode |
US5256957A (en) * | 1988-03-11 | 1993-10-26 | Gerhard Wiesspeiner | Process and circuit versions for charging accumulators |
-
1994
- 1994-10-13 US US08/322,747 patent/USRE35643E/en not_active Expired - Lifetime
Patent Citations (33)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB889306A (en) * | 1957-08-22 | 1962-02-14 | Philips Electrical Ind Ltd | Improvements in battery-charging apparatus |
US3629681A (en) * | 1969-04-10 | 1971-12-21 | Sevcon Eng Ltd | Circuits for controlled battery chargers |
DE1943681A1 (en) * | 1969-08-28 | 1971-03-11 | Sandelowsky Sally Dr Ing | Method for restoring the state of charge of batteries, especially in vehicles |
US3761795A (en) * | 1972-01-13 | 1973-09-25 | Legg Ltd | Battery charging apparatus |
SU639053A1 (en) * | 1973-04-17 | 1978-12-25 | Pyatnitskij Igor | Lead-acid storage battery charging method |
FR2227147A1 (en) * | 1973-04-24 | 1974-11-22 | Lehry Jean | Battery vehicle with built in charger - some motoring and braking components used for battery charging also |
US3839089A (en) * | 1973-05-18 | 1974-10-01 | Esb Inc | Water activated lead acid storage battery cell having dry discharged electrodes |
US3816807A (en) * | 1973-07-18 | 1974-06-11 | Gen Electric | Impedance controlled battery charger and method of charging with monitoring of a.c. answer signal |
DE2506828A1 (en) * | 1974-02-19 | 1975-08-21 | Robin Alexander Jessie | BATTERY CHARGER OR -ARRANGEMENT |
US3963976A (en) * | 1974-07-08 | 1976-06-15 | Utah Research & Development Co. | Pulsed current battery charging method and apparatus |
DE2557010A1 (en) * | 1975-12-18 | 1977-06-23 | Varta Batterie | Gas tight nickel-cadmium battery charger - starts charge with constant current and then uses current pulses after pause |
US4213080A (en) * | 1977-04-07 | 1980-07-15 | Chloride Group Limited | Automatic electric battery charging apparatus |
GB1578922A (en) * | 1977-05-24 | 1980-11-12 | Contrology Tech Ltd | Battery charging equipment |
US4274044A (en) * | 1978-06-30 | 1981-06-16 | U.S. Philips Corporation | DC-DC Converter for charging a battery by means of a solar cell |
SU892577A2 (en) * | 1979-09-10 | 1981-12-23 | Государственный Научно-Исследовательский Энергетический Институт Им.Г.М.Кржижановского | Device for charging storage battery with asymmetric current |
US4390940A (en) * | 1980-06-26 | 1983-06-28 | Societe Nationale Industrielle Aerospatiale | Process and system for producing photovoltaic power |
US4644256A (en) * | 1982-07-16 | 1987-02-17 | Icotron S.A. Industria De Componentes Electronicos | System driven by solar energy for pumping liquids |
US4626093A (en) * | 1984-06-28 | 1986-12-02 | Nippon Kogaku K.K. | Flash control device for electronic flash apparatus |
US4695935A (en) * | 1985-06-28 | 1987-09-22 | Alcatel N.V. | Power supply |
US4736150A (en) * | 1986-07-09 | 1988-04-05 | The United States Of America As Represented By The Secretary Of The Army | Method of increasing the useful life of rechargeable lithium batteries |
US4878007A (en) * | 1986-12-01 | 1989-10-31 | Brg Mechatronikai Vallalat | Method for charging nickel-cadmium batteries and circuit arrangement for carrying out the method |
US4740739A (en) * | 1987-02-10 | 1988-04-26 | Premier Engineered Products Corporation | Battery charging apparatus and method |
US4786851A (en) * | 1987-03-04 | 1988-11-22 | Kanegafuchi Kagaku Kogyo Kabushiki Kaisha | Battery charger |
US4795537A (en) * | 1987-04-10 | 1989-01-03 | H.P.G. Research Ltd. | Electrical conditioning system for electrodes in an electrolysis cell |
US5043650A (en) * | 1988-02-26 | 1991-08-27 | Black & Decker Inc. | Battery charger |
US5256957A (en) * | 1988-03-11 | 1993-10-26 | Gerhard Wiesspeiner | Process and circuit versions for charging accumulators |
JPH01311830A (en) * | 1988-03-31 | 1989-12-15 | Sanyo Electric Co Ltd | Charging equipment |
US4871959A (en) * | 1988-07-15 | 1989-10-03 | Gali Carl E | Solar trickle charger for lead acid batteries |
US5140250A (en) * | 1988-08-01 | 1992-08-18 | Motronix Limited | Protective circuit for battery powered engine ignition system |
US4931367A (en) * | 1988-10-28 | 1990-06-05 | C & D Charter Power Systems, Inc. | Low float technology battery |
US5045769A (en) * | 1989-11-14 | 1991-09-03 | The United States Of America As Represented By The Secretary Of The Navy | Intelligent battery charging system |
US5027051A (en) * | 1990-02-20 | 1991-06-25 | Donald Lafferty | Photovoltaic source switching regulator with maximum power transfer efficiency without voltage change |
US5250904A (en) * | 1991-08-08 | 1993-10-05 | Advanced Power Technology Inc. | Device for predicting imminent failure of a stationary lead acid battery in a float mode |
Non-Patent Citations (2)
Title |
---|
High Frequency Battery Charger Uses Thyristors by D. Chamund, et al., Electrical Times, Dec. 14, 1979. * |
PWM Battery Charger by M. Dhingra, Elektor, Jul./Aug. 1980. * |
Cited By (32)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5905363A (en) * | 1996-04-24 | 1999-05-18 | Gm Racing Modellsportvertrieb Gmbh | Method for reducing the internal resistance of rechargeable batteries |
US6856118B1 (en) * | 1999-06-15 | 2005-02-15 | Holgia Ab | Method and device for batteries |
US6172486B1 (en) * | 1999-09-24 | 2001-01-09 | The United States Of America As Represented By The Secretary Of The Army | Battery life extender with engine heat |
US6566844B1 (en) * | 1999-10-06 | 2003-05-20 | Battery Performance Technologies, Inc. | Method and apparatus for extending the functionality of a battery |
US6469473B1 (en) | 2001-03-16 | 2002-10-22 | Battery Performance Technologies, Inc. | Method and apparatus for using pulse current to extend the functionality of a battery |
US20030141845A1 (en) * | 2002-01-25 | 2003-07-31 | Michael Krieger | High frequency battery charger and method of operating same |
US7564223B2 (en) | 2002-01-25 | 2009-07-21 | Black & Decker Inc. | High frequency battery charger and method of operating same |
US20080185996A1 (en) * | 2002-01-25 | 2008-08-07 | Vector Products, Inc. | High frequency battery charger and method of operating same |
US6822425B2 (en) | 2002-01-25 | 2004-11-23 | Vector Products, Inc. | High frequency battery charger and method of operating same |
US7345450B2 (en) | 2002-02-19 | 2008-03-18 | V Ector Products, Inc. | Microprocessor controlled booster apparatus with polarity protection |
US20080203967A1 (en) * | 2002-02-19 | 2008-08-28 | Vector Products, Inc. | Microprocessor controlled booster apparatus with polarity protection |
US20040130298A1 (en) * | 2002-02-19 | 2004-07-08 | Michael Krieger | Microprocessor controlled booster apparatus with polarity protection |
US7656118B2 (en) | 2002-02-19 | 2010-02-02 | Black & Decker Inc. | Microprocessor controlled booster apparatus with polarity protection |
EP1544937A1 (en) * | 2002-09-24 | 2005-06-22 | Eruma Co. Ltd. | Method for removing lead sulfate film formed in lead-acid battery |
US20060065548A1 (en) * | 2002-09-24 | 2006-03-30 | Eruma Co., Ltd. | Method for removing lead sulfate film formed in lead-acid battery |
US20060065547A1 (en) * | 2002-09-24 | 2006-03-30 | Eruma Co., Ltd. | Device for removing lead sulfate film formed in lead-acid battery |
EP1544937A4 (en) * | 2002-09-24 | 2007-11-14 | Eruma Co Ltd | Method for removing lead sulfate film formed in lead-acid battery |
WO2004070909A1 (en) * | 2003-02-03 | 2004-08-19 | Commonwealth Scientific And Industrial Research Organisation | Pulse generation device for charging a valve-regulated lead-acid battery |
WO2004100338A1 (en) * | 2003-05-12 | 2004-11-18 | Envirolec Limited Llc | Lead battery conditioner |
US20050017677A1 (en) * | 2003-07-24 | 2005-01-27 | Burton Andrew F. | Method and system for providing induction charging having improved efficiency |
US6917182B2 (en) * | 2003-07-24 | 2005-07-12 | Motorola, Inc. | Method and system for providing induction charging having improved efficiency |
US7808211B2 (en) | 2003-10-23 | 2010-10-05 | Schumacher Electric Corporation | System and method for charging batteries |
US8120324B2 (en) * | 2006-02-27 | 2012-02-21 | Advanced Battery Management, Llc | Method and apparatus to provide battery rejuvenation at or near resonance |
US20090085525A1 (en) * | 2007-09-27 | 2009-04-02 | Pulsetech Products Corporation | Method for charging battery |
US20090085526A1 (en) * | 2007-09-27 | 2009-04-02 | Pulsetech Products Corporation | Circuit for generating triangular waveform having relatively short linear rise time and substantially long linear fall time |
US7834592B2 (en) | 2007-09-27 | 2010-11-16 | Pulsetech Products Corporation | Circuit for generating triangular waveform having relatively short linear rise time and substantially long linear fall time |
US20090085524A1 (en) * | 2007-09-27 | 2009-04-02 | Pulsetech Products Corporation | Battery charging circuit |
US8269466B2 (en) | 2007-09-27 | 2012-09-18 | Pulsetech Products Corporation | Method for charging a battery including an oscillating triangular waveform to remove sulphate from battery plates |
US8269465B2 (en) | 2007-09-27 | 2012-09-18 | Pulsetech Products Corporation | Battery charging circuit generating an oscillating triangular waveform to remove sulphate from battery plates |
US9293936B2 (en) * | 2011-06-17 | 2016-03-22 | Yura Corporation Co., Ltd. | Power relay assembly driving apparatus and driving method thereof |
US11024890B2 (en) * | 2014-06-26 | 2021-06-01 | Robert Bosch Gmbh | Transmitting device for transmitting electrical signals from at least one galvanic cell to at least one electronic evaluating unit |
WO2022272187A1 (en) * | 2020-06-24 | 2022-12-29 | Chih Hung Lin | Charging device and method of charging and rejuvenating battery |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US5063341A (en) | Lead acid battery rejuvenator and charger | |
USRE35643E (en) | Lead acid battery rejuvenator and charger | |
US5084664A (en) | Solar powered lead acid battery rejuvenator and trickle charger | |
US5541495A (en) | Battery polarity connection adaption solid state switch | |
EP1476931B1 (en) | Dual transformer high frequency battery charger | |
US5718662A (en) | Apparatus for the magnetic stimulation of cells or tissue | |
US4871959A (en) | Solar trickle charger for lead acid batteries | |
US5633575A (en) | Battery reclaimer and charger | |
US9917465B2 (en) | Battery exercising device | |
US5525892A (en) | Pulsed battery rejuvenator having variable trailing edge shaped pulses | |
KR100451637B1 (en) | A Management System for the Rechargeable Battery | |
EP0232316B1 (en) | Floating battery feed circuit using multifilar transformer | |
US11342776B2 (en) | Battery charger and method for charging a battery | |
US3475747A (en) | And-circuit-controlled program switch having matrix of cord connectors | |
SU1350851A1 (en) | Device for stabilizing discharge of gas-discharge tube | |
EP0047183A1 (en) | A dry cell battery re-activator | |
JPH0255535A (en) | Power circuit for electrostatic capacitor | |
CN109066934A (en) | A kind of charger being adapted to multivoltage | |
JP3267708B2 (en) | Charging device | |
US5646463A (en) | Synchronization control for interrelated DC voltage/battery polarity switching circuits | |
SU1408505A1 (en) | Pulsed d.c. voltage converter | |
SU1647797A1 (en) | Device for controlling triac | |
JPH06165400A (en) | Charger for battery | |
JPS6020732A (en) | Charger | |
GB2075283A (en) | Battery charging equipment |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: MOTOR PRODUCTS INTERNATIONAL, INC., TEXAS Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:PULSE CHARGE SYSTEMS, INC.;REEL/FRAME:007986/0160 Effective date: 19960330 |
|
FEPP | Fee payment procedure |
Free format text: PAT HLDR NO LONGER CLAIMS SMALL ENT STAT AS INDIV INVENTOR (ORIGINAL EVENT CODE: LSM1); ENTITY STATUS OF PATENT OWNER: SMALL ENTITY |
|
AS | Assignment |
Owner name: PULSETECH PRODUCTS CORPORATION, TEXAS Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:MOTOR PRODUCTS INTERNATIONAL, INC.;REEL/FRAME:009866/0593 Effective date: 19981231 |
|
AS | Assignment |
Owner name: SPECTRUM INTERNATIONAL CORPORATION, TEXAS Free format text: SECURITY INTEREST;ASSIGNOR:PULSETECH PRODUCTS CORPORATION;REEL/FRAME:009942/0046 Effective date: 19990409 |
|
FPAY | Fee payment |
Year of fee payment: 8 |
|
FEPP | Fee payment procedure |
Free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: SMALL ENTITY |
|
AS | Assignment |
Owner name: PULSETECH PRODUCTS CORPORATION, TEXAS Free format text: RELEASE OF SECURITY INTEREST;ASSIGNOR:SPECTRUM INTERNATIONAL CORPORATION, D/B/A SPECIALIZED PRODUCTS COMPANY;REEL/FRAME:013372/0270 Effective date: 20020917 |
|
FPAY | Fee payment |
Year of fee payment: 12 |
|
SULP | Surcharge for late payment |
Year of fee payment: 11 |