CA1036588A - Guide head for pipe rackers - Google Patents
Guide head for pipe rackersInfo
- Publication number
- CA1036588A CA1036588A CA239,652A CA239652A CA1036588A CA 1036588 A CA1036588 A CA 1036588A CA 239652 A CA239652 A CA 239652A CA 1036588 A CA1036588 A CA 1036588A
- Authority
- CA
- Canada
- Prior art keywords
- pipe
- slide plate
- retainer
- arm
- actuator
- 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
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
- E21B19/14—Racks, ramps, troughs or bins, for holding the lengths of rod singly or connected; Handling between storage place and borehole
Abstract
ABSTRACT
A pipe guide head for well pipe racking apparatus has plural slides defining different sizes of pipe receiving guide openings, extensible from retracted positions within the body to extended positions for receiving pipe, each slide being connected with a lever arm pivoted on the body to close the lever arm across the pipe opening upon extension of the slide and open the lever upon retraction of the slide. Fluid pressure operated actuators are connected with the slides to extend and retract them.
A pipe guide head for well pipe racking apparatus has plural slides defining different sizes of pipe receiving guide openings, extensible from retracted positions within the body to extended positions for receiving pipe, each slide being connected with a lever arm pivoted on the body to close the lever arm across the pipe opening upon extension of the slide and open the lever upon retraction of the slide. Fluid pressure operated actuators are connected with the slides to extend and retract them.
Description
1036~i8~3 The present invention relates to an improved guide ; head for pipe rackers, wherein the pipe receiving openings are formed in slide plates shiftable to and from pipe receiving positions. Retainer arms are actuated to and from pipe retaining positions with respect to the slides in response to movement of the slides, whereby the opening and closing action is sure and rapid.
In the drilling of wells, such as oil and gas wells, it is desirable to rack the stands of drill pipe and drill collars in racking means in the derrick or beneath the floor of the der-^~ rick. Such racking apparatus necessitates the movement of suc-cessive pipe stands between racked positions and a position at the center of the derrick, and the pipe must be transferred bet-ween such positlons by suitable supporting means eng~eable be-neath the usual shoulder prov:ic1ed by the tool jo:int or couplincJ
end of the pipe.
~, To conserve space in the rack, the pipe is racked in ...
close, side by side relation in sec~uence, by pipe lifting and positioning means such as that disclosed in United States Patent ~ No. 3,561,811, granted February 9, 1971, or in the United States Patent No. 3,929,235, issued December 30, 1975. In either case, .: :
the pipe is supported in a head which engages beneath the upset ; or shoulder of the tool joint to support the pipe and move it -i; during the racking and unracking operations. i~
In order to constrain the pipe against swinging in the :~
derrick ancl to position the pipe with respect to the rack and the center of the derrick a positionin~ guide means may be ~m-plo~ed, for example, as disclosecl in the aforesaid United States Patent No. 3,929,235. Such positioning guide means must accom-modate a variety o~ pipe sizes/ such as drill pipe and largerdrill collars, as well as, at other times different sized drill pipe and drill collars.
' ',.~. ~ '~' ' ,' ' - 1 - i'. ' ' ` ' .
.. : . . ... .
3~ 8 According to the present invention there is provided : a pipe guide head for well pipe racking apparatus, the head in-cluding a hollow body having means at one end for connection with a supporting and positioning structure. Guide means are provided ' at the other end of the body for receiving and guiding a length of pipe, the guide means including a slide plate with means re-. .
ciprocably supporting the slide plate ~or extension and retraction with respect to the body. ~ctuator means is associated with the ,, .
body and the slide plate for reciprocating the slide plate.
The slide plate has a pipe receiving opening in its end r and retainer means is mounted on the body and is movable between an open position and a closed position for reta.ining a pipe in the opening. A linkaye means is àssociated with the sl:ide plate and the retainer means for moving the retainer means to the open position in response to retraction of the slide plate and for moving the retainer means to the closed position in response to `
extension of the slide plate.
It may be seen, therefore that the guide head, accord- ;
, .. . ..j ~ ing to the present invention, has a body structure adapted to be mounted on a positioning arm, as disclosed in the aforementioned `~
United States Patent No. 3,929,235. Within the body, the pair of slide plates are reciprocable between retracted positions and ex~
tended positions. The slide plates have pipe receiving openings which may be defined by arcuate edge walls adapted to ~orm an `
inner arcuate guide surface substantially conforming to the size `
; of the pipe. Closure arms, or levers are pivotally mounted on the body and have ~ree ends swingable to and ~rom positions con-fronting the slide plates to provide outer pipe engaging guide :;, surfaces. The other ends of the levers are connected to the slides, so that actuation o~ the levers is responsive to movement ;
of the slide and the overall opening and closing of the guide is ~;
rapid. ~-; .
S~3~
This invention possesses many other advantages, and - has other purposes which may be made mo~e clearly apparent from - . a consideration of forms in which it may be embodied. These :
forms are shown in the drawings accompanying '.
., ' . ,' :.
, ,~ ~, , . ~, .. , ;
., . ' ' .
'.', . ; , ~" ~ ' ' , ' ' ::
,;,''' ', ' :
: . .. .
'~ , ' ' ''~ ' ';' " ' .'~ ','.' , ",~, . ' ` ,~
~ 2a -' ' ' ' . .
.:
: .i ~C~365~
`..'::
:: and formina part of the present specification, They will ;"' ~:. now be described in detail, for the purpose of illustrating the general principles of the invention; but it is to be : understood that such detailed descriptions are not to be taken in a limiting sense, since the scope of the invention is best defined by the appended claims.
:, In the accompanying drawings:
FIG, 1 is a side elevation, with a portion of the ,,.i body broken away, of a guide head for pipe rackers embodying , ~ , .: the invention;
'~ FIG, 2 is a horizon~al section, a~ taken on the ;; line 2-2 of FIG, 1J
:
, FIG, 3 iS a horizontal section, as taken on the ", line 3-3 of FIG. l; and : :
. FIG, 4 is a transverse section, as taken on the : line 4-4 of FIG. l; and ....
.~ ~ FIG. 5 iS a fragmentary view generally correspond-: ing with FIG. 3, but showing the upper slide in its extended -. condition~
;.'.
As seen in the drawings, the guide head comprises a hollow, rectangular body B having a rear end wall 1 and :: side walls 2 and 3 suitably joined to or formed with the : .
'' ''.
::
,.;
rear wall 1. Top and bottom walls 4 and 5 are secured to the . side walls by fasteners 6. The rear wall 1 is configured for - attachment to the support 7, shown in broken lines in FIGS. 1-3, such as the positioning arm of the a~orementioned United States . .
Patent No. 3,929,235, so as to be-shiftable laterally and to~
".;.
:'- wards and away from the center of a well drilling derrick..` ~he side walls 2 and 3 of the body are formed with or provided ~: with longitudinally extended parallel ribs 8 and 9 forming verti- ;
cally spaced tracks or guides 10 and 11 for receiving a pair o~
guide plates or slides 12 and 13. Upper slide 12 has an arcu-ate pipe receiving opening defined by an arcuate edge wall 14 of a si~e, say, adapted to receive a drill collar oE relatively large diameter. Lower slide 13 has an arcuate pipe rece.iving " opening defined by an arcuate edge wall 15 o:E a siz~, say, to 'l' receive a drill pipe o~ relati~ely ~mall diameter. Each o:E the `;: slides 12 and 13 is adapted to be shi~ted in its tracks between : , a retracted position between the side walls of the body and an . .~ .
extended position projecting forwardly from the open front end : of the body.
Accordingly, the slide 12 is connected by a pin 16 with .:
:; the rod 17 of a double acting pressure operated actuator 18 ... . .
- having a cylinder 19 connected with a pressure source through . . .
the usual fittings 20, 21. ~he actuator 18 is anchored to .
- . the ~ear wall 1 of the body in blocks 22 secured to the end wall 1 by fasteners 23. Correspondingly, .::
:.
:..
~.... 1 1.
. ",................................................................. ...
;,,.
,',' ' : /
: ~Q3658~ -the slide 13 i5 connected by a pin 24 with the rod 25 of a double acting, pressure operated actuator 26 having its cylinder 27 anchored to the end wall 1 by blocks 28 and fasteners 29. Fluid connections 30, 31 are provided to supply and exhaust fluid to and from the cylinder 27, as customary.
Associated with the slide 12 is a lever arm or retainer 32 constituting means actuatable in response to extension and retraction of the sl.ide 12 for retaining a pipe in the pipe opening, as seen in FIG. 5, or releasing the pipe. Correspondingly, a lever arm or retainer 33 i9 associated with the slide 13 and is actuatable between the closed position of FIGS. 2 and 3 retaining the pipe in the slide opening, and the open position of FIG. 5, responsive to extension and retraction of the slide 13 This lever arm or retainer 32 is pivotally mounted between its ends on a pin 34 which extends vertically between lever support ears 35 and 36 welded or formed on the body side wall 2 and projecting outwardly therefrom. A connector 37 is fastened to the slide 12 by fasteners 38 and projects outwardly through an elongated slot 39 in the side wall 2, A link 40 is pivotally connected by a pin 41 with the conneator 37 and by a pin 42 to an actuating arm 43 o;E the lever 32, at one side of the pivot pin 34. At the other side of the pivot pin 34, the lever 32 has an arched free end or arm po.rtion 44 adapted to move to the position of FIG. 5, . , . ~
:
~ ~J3~58~
: - closing the gap at the front of the slide 12 when the slide 12 ;. is extended by the actuator 18. With the lever 32 in the closed position, the pipe is retained between the slide 12 and the lever arm 32.
,"'' . Likewise, the lever arm or retainer 33 is pivoted on the pin 34 between the support ear 36 and a lower : support ear 45 welded or formed on the body wall 2, and - ,.:
. has an actuator arm 46 connected by a pin 47 with a link 48 which is in turn connected by a pin 49 with a connector 50 secured to the slide 13 by asteners 51. r~he connector 50 :: extend.s through an elongated slot 52 in the body side wall 2, so that extension of the slide 13 to the position of FIG, 3 actuates the lever 33 to dispose its free arm 53 in position to confine the pipe within the pipe opening 15 of the slide 13.
Retraction of the slide opens the lever 33, as seen in FIG. S.
. .
.~ Since the motion of the slides 12 and 13 and the .: levers 32 and 33 are co~bined, the lever action is quick.
Moreover, since the rod end of the actuators 18 and 26 ::;
is connected to the slide the actuating motion is quick.
. Thus, when desired, the head can be quickly opened and closed ;
~ as the pipe, guided by the head, is raised and lowered . ~:
`;. and enlargements on the pipe, such as tool joints and pro-tective collars can readily pass through -the head during the racking and unracking of pipe.
., ;
~ -6-'' '~
.
In the drilling of wells, such as oil and gas wells, it is desirable to rack the stands of drill pipe and drill collars in racking means in the derrick or beneath the floor of the der-^~ rick. Such racking apparatus necessitates the movement of suc-cessive pipe stands between racked positions and a position at the center of the derrick, and the pipe must be transferred bet-ween such positlons by suitable supporting means eng~eable be-neath the usual shoulder prov:ic1ed by the tool jo:int or couplincJ
end of the pipe.
~, To conserve space in the rack, the pipe is racked in ...
close, side by side relation in sec~uence, by pipe lifting and positioning means such as that disclosed in United States Patent ~ No. 3,561,811, granted February 9, 1971, or in the United States Patent No. 3,929,235, issued December 30, 1975. In either case, .: :
the pipe is supported in a head which engages beneath the upset ; or shoulder of the tool joint to support the pipe and move it -i; during the racking and unracking operations. i~
In order to constrain the pipe against swinging in the :~
derrick ancl to position the pipe with respect to the rack and the center of the derrick a positionin~ guide means may be ~m-plo~ed, for example, as disclosecl in the aforesaid United States Patent No. 3,929,235. Such positioning guide means must accom-modate a variety o~ pipe sizes/ such as drill pipe and largerdrill collars, as well as, at other times different sized drill pipe and drill collars.
' ',.~. ~ '~' ' ,' ' - 1 - i'. ' ' ` ' .
.. : . . ... .
3~ 8 According to the present invention there is provided : a pipe guide head for well pipe racking apparatus, the head in-cluding a hollow body having means at one end for connection with a supporting and positioning structure. Guide means are provided ' at the other end of the body for receiving and guiding a length of pipe, the guide means including a slide plate with means re-. .
ciprocably supporting the slide plate ~or extension and retraction with respect to the body. ~ctuator means is associated with the ,, .
body and the slide plate for reciprocating the slide plate.
The slide plate has a pipe receiving opening in its end r and retainer means is mounted on the body and is movable between an open position and a closed position for reta.ining a pipe in the opening. A linkaye means is àssociated with the sl:ide plate and the retainer means for moving the retainer means to the open position in response to retraction of the slide plate and for moving the retainer means to the closed position in response to `
extension of the slide plate.
It may be seen, therefore that the guide head, accord- ;
, .. . ..j ~ ing to the present invention, has a body structure adapted to be mounted on a positioning arm, as disclosed in the aforementioned `~
United States Patent No. 3,929,235. Within the body, the pair of slide plates are reciprocable between retracted positions and ex~
tended positions. The slide plates have pipe receiving openings which may be defined by arcuate edge walls adapted to ~orm an `
inner arcuate guide surface substantially conforming to the size `
; of the pipe. Closure arms, or levers are pivotally mounted on the body and have ~ree ends swingable to and ~rom positions con-fronting the slide plates to provide outer pipe engaging guide :;, surfaces. The other ends of the levers are connected to the slides, so that actuation o~ the levers is responsive to movement ;
of the slide and the overall opening and closing of the guide is ~;
rapid. ~-; .
S~3~
This invention possesses many other advantages, and - has other purposes which may be made mo~e clearly apparent from - . a consideration of forms in which it may be embodied. These :
forms are shown in the drawings accompanying '.
., ' . ,' :.
, ,~ ~, , . ~, .. , ;
., . ' ' .
'.', . ; , ~" ~ ' ' , ' ' ::
,;,''' ', ' :
: . .. .
'~ , ' ' ''~ ' ';' " ' .'~ ','.' , ",~, . ' ` ,~
~ 2a -' ' ' ' . .
.:
: .i ~C~365~
`..'::
:: and formina part of the present specification, They will ;"' ~:. now be described in detail, for the purpose of illustrating the general principles of the invention; but it is to be : understood that such detailed descriptions are not to be taken in a limiting sense, since the scope of the invention is best defined by the appended claims.
:, In the accompanying drawings:
FIG, 1 is a side elevation, with a portion of the ,,.i body broken away, of a guide head for pipe rackers embodying , ~ , .: the invention;
'~ FIG, 2 is a horizon~al section, a~ taken on the ;; line 2-2 of FIG, 1J
:
, FIG, 3 iS a horizontal section, as taken on the ", line 3-3 of FIG. l; and : :
. FIG, 4 is a transverse section, as taken on the : line 4-4 of FIG. l; and ....
.~ ~ FIG. 5 iS a fragmentary view generally correspond-: ing with FIG. 3, but showing the upper slide in its extended -. condition~
;.'.
As seen in the drawings, the guide head comprises a hollow, rectangular body B having a rear end wall 1 and :: side walls 2 and 3 suitably joined to or formed with the : .
'' ''.
::
,.;
rear wall 1. Top and bottom walls 4 and 5 are secured to the . side walls by fasteners 6. The rear wall 1 is configured for - attachment to the support 7, shown in broken lines in FIGS. 1-3, such as the positioning arm of the a~orementioned United States . .
Patent No. 3,929,235, so as to be-shiftable laterally and to~
".;.
:'- wards and away from the center of a well drilling derrick..` ~he side walls 2 and 3 of the body are formed with or provided ~: with longitudinally extended parallel ribs 8 and 9 forming verti- ;
cally spaced tracks or guides 10 and 11 for receiving a pair o~
guide plates or slides 12 and 13. Upper slide 12 has an arcu-ate pipe receiving opening defined by an arcuate edge wall 14 of a si~e, say, adapted to receive a drill collar oE relatively large diameter. Lower slide 13 has an arcuate pipe rece.iving " opening defined by an arcuate edge wall 15 o:E a siz~, say, to 'l' receive a drill pipe o~ relati~ely ~mall diameter. Each o:E the `;: slides 12 and 13 is adapted to be shi~ted in its tracks between : , a retracted position between the side walls of the body and an . .~ .
extended position projecting forwardly from the open front end : of the body.
Accordingly, the slide 12 is connected by a pin 16 with .:
:; the rod 17 of a double acting pressure operated actuator 18 ... . .
- having a cylinder 19 connected with a pressure source through . . .
the usual fittings 20, 21. ~he actuator 18 is anchored to .
- . the ~ear wall 1 of the body in blocks 22 secured to the end wall 1 by fasteners 23. Correspondingly, .::
:.
:..
~.... 1 1.
. ",................................................................. ...
;,,.
,',' ' : /
: ~Q3658~ -the slide 13 i5 connected by a pin 24 with the rod 25 of a double acting, pressure operated actuator 26 having its cylinder 27 anchored to the end wall 1 by blocks 28 and fasteners 29. Fluid connections 30, 31 are provided to supply and exhaust fluid to and from the cylinder 27, as customary.
Associated with the slide 12 is a lever arm or retainer 32 constituting means actuatable in response to extension and retraction of the sl.ide 12 for retaining a pipe in the pipe opening, as seen in FIG. 5, or releasing the pipe. Correspondingly, a lever arm or retainer 33 i9 associated with the slide 13 and is actuatable between the closed position of FIGS. 2 and 3 retaining the pipe in the slide opening, and the open position of FIG. 5, responsive to extension and retraction of the slide 13 This lever arm or retainer 32 is pivotally mounted between its ends on a pin 34 which extends vertically between lever support ears 35 and 36 welded or formed on the body side wall 2 and projecting outwardly therefrom. A connector 37 is fastened to the slide 12 by fasteners 38 and projects outwardly through an elongated slot 39 in the side wall 2, A link 40 is pivotally connected by a pin 41 with the conneator 37 and by a pin 42 to an actuating arm 43 o;E the lever 32, at one side of the pivot pin 34. At the other side of the pivot pin 34, the lever 32 has an arched free end or arm po.rtion 44 adapted to move to the position of FIG. 5, . , . ~
:
~ ~J3~58~
: - closing the gap at the front of the slide 12 when the slide 12 ;. is extended by the actuator 18. With the lever 32 in the closed position, the pipe is retained between the slide 12 and the lever arm 32.
,"'' . Likewise, the lever arm or retainer 33 is pivoted on the pin 34 between the support ear 36 and a lower : support ear 45 welded or formed on the body wall 2, and - ,.:
. has an actuator arm 46 connected by a pin 47 with a link 48 which is in turn connected by a pin 49 with a connector 50 secured to the slide 13 by asteners 51. r~he connector 50 :: extend.s through an elongated slot 52 in the body side wall 2, so that extension of the slide 13 to the position of FIG, 3 actuates the lever 33 to dispose its free arm 53 in position to confine the pipe within the pipe opening 15 of the slide 13.
Retraction of the slide opens the lever 33, as seen in FIG. S.
. .
.~ Since the motion of the slides 12 and 13 and the .: levers 32 and 33 are co~bined, the lever action is quick.
Moreover, since the rod end of the actuators 18 and 26 ::;
is connected to the slide the actuating motion is quick.
. Thus, when desired, the head can be quickly opened and closed ;
~ as the pipe, guided by the head, is raised and lowered . ~:
`;. and enlargements on the pipe, such as tool joints and pro-tective collars can readily pass through -the head during the racking and unracking of pipe.
., ;
~ -6-'' '~
.
Claims (5)
1. A pipe guide head for well pipe racking apparatus comprising: a hollow body having means at one end for connection with a supporting and positioning structure, guide means at the other end of said body for receiving and guiding a length of pipe, said guide means including a slide plate, means reciprocably support-ing said slide plate for extension and retraction with respect to said body, actuator means associated with said body and said slide plate for reciprocating said slide plate, said slide plate having a pipe receiving opening in its end, retainer means mounted on said body and movable between an open position and a closed position for retaining a pipe in said opening, and linkage means associated with said slide plate and said retainer means for moving said retainer means to said open position in response to retraction of said slide plate and for moving said retainer means to said closed position in response to extension of said slide plate.
2. A pipe guide head as defined in Claim 1, wherein said retainer means comprises a lever arm pivoted between its ends on said body and having an actuator arm and a pipe retainer arm at opposite sides of its pivotal mounting, and said linkage means includes a link connecting said actuator arm with said slide plate.
3. A pipe guide head as defined in Claim 1, wherein said retainer means comprises a lever arm pivoted between its ends on said body and having an actuator arm and a pipe retainer arm at opposite sides of its pivotal mounting, and said linkage means includes a link connecting said actuator arm with said slide plate, and said actuator means comprises double acting fluid pressure operated actuator cylinder means connected between said slide plate and said body.
4. A pipe guide head as defined in Claim 1, wherein said retainer means comprises a lever arm pivoted between its ends on said body and having an actuator arm and a pipe retainer arm at opposite sides of its pivotal mounting, and said linkage means includes a link connecting said actuator arm with said slide plate, and said actuator means comprises double acting fluid pressure operated actuator means having a rod connected to said slide plate and a cylinder connected to said body.
5. A pipe guide head as defined in Claim 1, wherein said retainer means comprises a lever arm pivoted on said body and having an actuator arm and a pipe retainer arm, and said linkage means includes a link connecting said actuator arm to said slide plate.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US05/526,208 US3937514A (en) | 1974-11-22 | 1974-11-22 | Guide head for pipe rackers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1036588A true CA1036588A (en) | 1978-08-15 |
Family
ID=24096387
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA239,652A Expired CA1036588A (en) | 1974-11-22 | 1975-11-14 | Guide head for pipe rackers |
Country Status (12)
| Country | Link |
|---|---|
| US (1) | US3937514A (en) |
| JP (1) | JPS559994B2 (en) |
| AT (1) | AT339232B (en) |
| CA (1) | CA1036588A (en) |
| DE (1) | DE2550073C3 (en) |
| DK (1) | DK491975A (en) |
| FR (1) | FR2292102A1 (en) |
| GB (1) | GB1494965A (en) |
| IT (1) | IT1043645B (en) |
| NL (1) | NL177036C (en) |
| NO (1) | NO144000C (en) |
| SU (1) | SU619115A3 (en) |
Families Citing this family (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4126348A (en) * | 1977-05-05 | 1978-11-21 | Bj-Hughes, Inc. | Universal handling head for a pipe racker |
| US4397605A (en) * | 1979-06-05 | 1983-08-09 | Cowgill Charles F | Mechanized stand handling apparatus for drilling rigs |
| US4531875A (en) * | 1982-08-17 | 1985-07-30 | Impro Technologies, Inc. | Automated pipe equipment system |
| US4547109A (en) * | 1983-06-08 | 1985-10-15 | Young Horace J | Drill pipe handling and placement apparatus |
| GB2167105B (en) * | 1984-10-03 | 1988-05-05 | Lucas Brian Ronald | Apparatus for use in drilling |
| JPH086151Y2 (en) * | 1991-10-31 | 1996-02-21 | 川崎重工業株式会社 | Clamp device |
| US5284374A (en) * | 1992-05-15 | 1994-02-08 | The United States Of America As Represented By The United States Department Of Energy | Apparatus for remotely handling components |
| FI95620C (en) * | 1993-04-08 | 1996-02-26 | Tamrock Oy | Grip arm for rock drilling device with rod cassette or similar |
| US5642810A (en) * | 1996-01-02 | 1997-07-01 | Carlisle Plastics, Inc. | Container/dispenser for rolled plastic bags |
| GB2321867A (en) * | 1997-02-07 | 1998-08-12 | Weatherford Lamb | Apparatus for gripping a tubular |
| US6814164B2 (en) * | 1999-05-28 | 2004-11-09 | Vermeer Manufacturing Company | Pipe loading device for a directional drilling apparatus |
| US6332502B1 (en) * | 1999-05-28 | 2001-12-25 | Vermeer Manufacturing Company | Pipe loading device for a directional drilling apparatus |
| ATE426573T1 (en) * | 2006-06-14 | 2009-04-15 | Sidel Holdings & Technology Sa | GRIPPER FOR CONTAINERS |
| US8267448B2 (en) * | 2009-05-01 | 2012-09-18 | Mccoy Corporation | Cam arm actuated backup tong |
| WO2013075033A1 (en) * | 2011-11-18 | 2013-05-23 | Longyear Tm, Inc. | Self-centering clamping device |
| GB201201607D0 (en) * | 2012-01-31 | 2012-03-14 | Larkin Brendan | Drilling-pipe handling apparatus and method |
| US8851796B2 (en) * | 2012-08-27 | 2014-10-07 | Southeast Directional Drilling, Llc | Pipe retriever |
| US9863193B2 (en) * | 2014-06-11 | 2018-01-09 | Max Buchanan | Hydraulically powered trough extension for a pipe handling, pipe laydown and pipe pickup machine |
| DE102016109317A1 (en) * | 2016-05-20 | 2017-11-23 | Andreas Hettich Gmbh & Co. Kg | grab |
| US10150652B2 (en) * | 2017-03-27 | 2018-12-11 | Tei Rock Drills, Inc. | Rod and casing handler |
| TWM623830U (en) * | 2021-03-17 | 2022-03-01 | 禾昌興業股份有限公司 | High-frequency ground terminal structure and card edge connector |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3021168A (en) * | 1960-03-28 | 1962-02-13 | George C Bodine | Workpiece grasping apparatus |
| US3312291A (en) * | 1964-10-05 | 1967-04-04 | Raymond Int Inc | Derricks |
| US3472404A (en) * | 1966-09-19 | 1969-10-14 | Thomas E Ord | Material handling device |
| US3561811A (en) * | 1968-05-23 | 1971-02-09 | Byron Jackson Inc | Well pipe racker |
-
1974
- 1974-11-22 US US05/526,208 patent/US3937514A/en not_active Expired - Lifetime
-
1975
- 1975-10-01 GB GB40201/75A patent/GB1494965A/en not_active Expired
- 1975-10-24 IT IT28669/75A patent/IT1043645B/en active
- 1975-10-27 NO NO753596A patent/NO144000C/en unknown
- 1975-10-31 NL NLAANVRAGE7512773,A patent/NL177036C/en not_active IP Right Cessation
- 1975-10-31 DK DK491975A patent/DK491975A/en not_active Application Discontinuation
- 1975-11-07 DE DE2550073A patent/DE2550073C3/en not_active Expired
- 1975-11-14 CA CA239,652A patent/CA1036588A/en not_active Expired
- 1975-11-19 AT AT881275A patent/AT339232B/en not_active IP Right Cessation
- 1975-11-20 JP JP13971675A patent/JPS559994B2/ja not_active Expired
- 1975-11-21 FR FR7535707A patent/FR2292102A1/en active Granted
- 1975-11-21 SU SU752192005A patent/SU619115A3/en active
Also Published As
| Publication number | Publication date |
|---|---|
| US3937514A (en) | 1976-02-10 |
| ATA881275A (en) | 1977-02-15 |
| DE2550073C3 (en) | 1981-10-22 |
| IT1043645B (en) | 1980-02-29 |
| NL177036B (en) | 1985-02-18 |
| GB1494965A (en) | 1977-12-14 |
| DE2550073A1 (en) | 1976-05-26 |
| JPS559994B2 (en) | 1980-03-13 |
| FR2292102A1 (en) | 1976-06-18 |
| NO144000B (en) | 1981-02-16 |
| AT339232B (en) | 1977-10-10 |
| FR2292102B1 (en) | 1978-05-12 |
| SU619115A3 (en) | 1978-08-05 |
| JPS5174902A (en) | 1976-06-29 |
| NO753596L (en) | 1976-05-25 |
| DE2550073B2 (en) | 1981-02-26 |
| NO144000C (en) | 1981-05-27 |
| DK491975A (en) | 1976-05-23 |
| NL7512773A (en) | 1976-05-25 |
| NL177036C (en) | 1985-07-16 |
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