Vibration device

US007994741B2 <12, United States Patent <16) Patent N0.: US 7,994,741 B2 Delson (45) Date of Patent: Aug. 9, 2011 (54) VIBRATION DEVICE 5,643,087 A 7/ 1997 Marcus et al. 5,666,138 A 9/1997 Culver (75) Inventor: Nathan Delson, San Diego, CA (U S) Q k/F§r§:S1L'l . . . . 5,923,317 A 7/1999 S l tal. (73) Asslgneei C°aet1Ve D1‘1Ve C°1‘P°1‘at1°I1, NeWY°T1<> 6,002,184 A * 12/1999 D?1sf>11ee1a1, ,,,,,,,,,,,,,,,,, ,, 310/ 14 NY (U S) 6,009,986 A 1/2000 Bansemir 6: al. 6,147,422 A 11/2000 Delson et al. ( * ) Notice: Subject to any disclaimer’ the term ofthis * S€3.1€ €t . . . . . . . . . . . . . . . . . . .. patent is extended or adjusted under 35 6275213 B1 8/2001 Tremblay et 31' Uastct 15403) by 50 days’ 6,307,285 Bl 10/E201 ‘B61316: al. ontinue (21) Appl.No.: 12/005,519 OTHER PUBLICATIONS 22) Filed: Dec. 27, 2007 . ‘ . an , . . . . ( N 0Muscle Linear Actuator http //3w gfec com tw/engl1sh/ser(65) Prior Publication Data vice/content/elinear actuatorhtm, printed Jan. 2, 2006. US 2008/0106223 A1 May 8, 2008 (C°m1n“ed) Related U.S. Application Data firimary lgcaminer T Pijmsg Si ssislanl xaminer — avi uo (62) Division ofapplicationNo. 11/325,036, filed on Jan. 4, (74) AUDI,” A em or Fl-rm _ Lerner David Linenber 2006 now Pat No 7 683 508 ey’ g - ’ ’ ’ g’ ’ ' ' ’ ’ ' Krumholz & Mentlik, LLP (60) Provisional application No. 60/641,317, filed on Jan. 4, 2005 (57) ABSTRACT (51) I t Cl The present invention pertains to vibration devices that do not n ' ' require a rotating mass. In accordance with aspects of the H02K 33/02 (200601) invention, a coil causes a plunger to move linearly. A spring (52) U-s- C1- ~~~~~~~~~ ~~ 318/114; 318/119; 318/255; 310/51 device is coupled to one end ofthe plunger. Activation ofthe (58) F1e1d 91 Classifieatien Search ~~~~~~~~~~~~~~~~ -- 318/114, coil causes the plunger to move in a first direction relative to 318/1 19, 255; 310/51, 15 a body and coil deactivation enables the spring device to move $66 8pp1i68IiOn fi16 fOr 60111131616 S6ar611 history. the plunger in an opposite direction relative to the body. Activating the coil at a predetermined frequency causes (56) Referenees Clted vibration of the plunger. Vibratory forces are transferred via the spring device and coil onto the body at predetermined U~S~ PATENT DOCUMENTS locations. Opposing spring devices may be affixed to either 2,447,230 A 3/1943 BIOWH end of the plunger. Spring devices may be linear or non-linear. 3,395, Q 1;; lgfiidehe e1a1~ Such spring devices may be used in conjunction with mag4:7 493891 A 6/1988 Shane; netic spring devices. A controller and a driver circuit may be 4,788,968 A 12/1988 Rudashevsky 6: al. “sed 1° °°mY°1SYSTem °Pe1a11°n~ 5,327,120 A * 7/1994 McKee et al. ................ .. 340/7.6 5,589,828 A 12/1996 Armstrong 21 Claims, 5 Drawing Sheets

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U.S. PATENT DOCUMENTS 2004/0233161 Al ll/2004 Shahoian et al.
. 2004/0233167 Al ll/2004 Braun et al.

613891941 B1 5/2002 M‘°h.1"’r 2005/0030284 A1 2/2005 Braun 6161.

613971285 B1 572002 HaShg?°‘° ""19 2005/0052415 A1 3/2005 Braun 6161.

614241333 B1 72°02 Tram ay eta" 2005/0128186 A1 6/2005 Shahoian 6161.

21229238 E; figggg Ply“ k. t 1 2005/0134561 A1 6/2005 Tierling 6161.

616791776 B1 1/2004 Np‘§pZ£‘p‘p:p :_pt"’a1a~ 2005/0134562 A1 6/2005 Grant 6161.

’ ’ . ' 2005/0195168 A1 9/2005 Rosenberg et al

6,693,622 B1 * 2/2004 S113-11013-11 et 31~ ~~~~~~~~~~~ ~~ 345/156 2005/0219206 A1 10/2005 Schena et aj_

g17%1ggé E; ggggfp ffhena "’“*t1~a1 2005/0221894 A1 10/2005 Lum 6161.

618091727 B2 10/2004 Pp‘zp‘t°pfp’t“;‘e " 2005/0237314 A1 10/2005 Ryynaiien

’ ’ '. 2006/0157632 Al 7/2006 Delson

618241468 B2 11/2°04 M‘“Za“Sk‘e“11~ 2006/0290662 A1 12/2006 Houston 6161.

6,864,877 B2 3/2005 Braun et al.

6,873,067 B2 * 3/2005 Ichii et al. ..................... .. 310/l5 QTHER PUBLICATIQNS

6,982,696 Bl l/2006 Shahoian

6,992,462 B1 1/2006 Hussaini et al. Harmon, C. et al, “Multi-Axis Vibration Reduces Test Time”, Evalu

7,084,854 B1 8/2006 Moore et al. ation Engineering, Jun. 2006, pp. 1-7.

7,182,691 B1 2/2007 Schena “Essential Atlas of Physics and Chemistry” Barons, pp 26 27

7,315,098 B2* 1/2008 Kunita ct al. ................. .. 310/15 Maor, E., “Trigonometric Delights”, Princeton University Press,

7,446,752 B2* 11/2008 Goldenberg 6161. . . 345/156 Prince[()n7N]7 199g,pp, 145.149,

7,561,142 B2 * 7/ Z009 $hfl110iflH 61 AI. ~~~~~~~~~~~ ~~ 345/156 Wyle Laboratories, “Multi Axis-Dynamic Vibration System” 2006 2002/0024503 A1 2/2002 Armstrong Freeman, M., “3 -D Vibration Test System: Powerful, Unusual, Inter2004/0108992 A1 6/2004 Rosenberg national”, Test Engineering & Management, Aug /Sep 1992 pp 2004/0164959 A1 8/2004 Rosenberg et al. 10.12 2004/0183782 Al 9/2004 Shahoian et al.

2004/0227727 A1 11/2004 Schena et al. * cited by examiner

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