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특허 상세정보

Power-assisted wheelbarrow

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) B62D-051/04    B62B-001/00   
미국특허분류(USC) 180/019.1 ; 180/019.3 ; 280/653
출원번호 US-0048997 (1998-03-27)
우선권정보 JP-0078157 (1997-03-28)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    Arent, Fox, Kintner, Plotkin & Kahn
인용정보 피인용 횟수 : 41  인용 특허 : 3
초록

A power-assisted wheelbarrow applies an assisting function using an electric motor. Handle shafts connecting to the rear end portions of two handles are covered with grips which are allowed to move axially relative to the handle shafts. More than one steel balls are fitted between the handle shafts and the grips. At the sides of the grips or the handles, pushing force detecting sensors are disposed for detecting the axial movements of the grips relative to the handle shafts in accordance with the pushing forces applied to the grips. The operation of the ...

대표
청구항

[ What is claimed is:] [1.] A power assisted wheelbarrow comprising:a tray frame;a wheel carried at a center of a lower portion of said tray frame;a pair of right and left handles respectively extending backward from two sides of said tray frame, said pair of right and left handles for carrying a material, to be placed on said tray frame, by combination of said wheel and said pair of right and left handles;an electric motor mounted on said tray frame;power transmission means interposed between said wheel and said electric motor for transmitting a power b...

이 특허를 인용한 특허 피인용횟수: 41

  1. Kummer,Joseph A.; Kappeler,Ronald P.; Frondorf,Michael M.; Lubbers,David P.. Braking apparatus for a patient support. USP2006037014000.
  2. Hanson, Thomas W.; Henderson, Ronald S.. Combination bed mover and patient transfer apparatus. USP2004126834402.
  3. Kummer,Joseph A.; Kappeler,Ronald P.; Frondorf,Michael M.; Lubbers,David P.. Control apparatus for a patient support. USP2007097273115.
  4. Goto, Masahiko. Electric power mower. USP2016039282695.
  5. Goto, Masahiko. Electric wheeled apparatus. USP2014108851215.
  6. Rowlands, Terry Charles. Motorised wheelbarrow. USP2015089108690.
  7. Nelsen, Daniel; Vieira, Michael; O'Farrell, William J.. Motorized garden cart. USP200403D487325.
  8. Berrett, Jared; Smith, Kim; Berrett, Nathan; Bradford, Spencer Boyd. Motorized litter transport kits, methods and devices relating thereto. USP2013128613455.
  9. Vandelinde, Gary. Motorized load assistance for wheelbarrows. USP2015048997903.
  10. Ruschke,Jeffrey A.; Hanson,Thomas W.. Motorized propulsion system for a bed. USP2009017481286.
  11. Ruschke,Jeffrey A.; Hanson,Thomas W.. Motorized propulsion system for a bed. USP2006047021407.
  12. Vogel, John David; Hanson, Thomas W.; Crandall, Craig; Kummer, Joseph A.; Frondorf, Michael M.; Lubbers, David P.; Kappeler, Ronald P.; Wilson, Bradley T.; Metz, Darrell L.; Smith, Doug K.; Ruschke, . Motorized traction device for a patient support. USP2005046877572.
  13. Vogel, John David; Hanson, Thomas W.; Crandall, Craig; Kummer, Joseph A.; Frondorf, Michael M.; Lubbers, David P.; Kappeler, Ronald P.; Wilson, Bradley T.; Metz, Darrell L.; Smith, Doug K.; Ruschke, . Motorized traction device for a patient support. USP2004066749034.
  14. Vogel, John David; Hanson, Thomas W.; Crandall, Craig; Kummer, Joseph A.; Frondorf, Michael M.; Lubbers, David P.; Kappeler, Ronald P.; Wilson, Bradley T.; Metz, Darrell L.; Smith, Doug K.; Ruschke, Jeffrey A.; Vodzak, John; Stratman, Terry J.; Oberhaus, Eric W.. Motorized traction device for a patient support. USP2010117828092.
  15. Vogel, John David; Hanson, Thomas W.; Crandall, Craig; Kummer, Joseph A.; Frondorf, Michael M.; Lubbers, David P.; Kappeler, Ronald P.; Wilson, Bradley T.; Metz, Darrell L.; Smith, Doug K.; Ruschke, Jeffrey A.; Vodzak, John; Stratman, Terry J.; Oberhaus, Eric W.. Motorized traction device for a patient support. USP2012098267206.
  16. Vogel, John David; Hanson, Thomas W.; Crandall, Craig; Kummer, Joseph A.; Frondorf, Michael M.; Lubbers, David P.; Kappeler, Ronald P.; Wilson, Bradley T.; Metz, Darrell L.; Smith, Doug K.; Ruschke, Jeffrey A.; Vodzak, John; Stratman, Terry J.; Oberhaus, Eric W.. Motorized traction device for a patient support. USP2011118051931.
  17. Vogel,John David; Hanson,Thomas W.; Crandall,Craig; Kummer,Joseph A.; Frondorf,Michael M.; Lubbers,David P.; Kappeler,Ronald P.; Wilson,Bradley T.; Metz,Darrell L.; Smith,Doug K.; Ruschke,Jeffrey A.;. Motorized traction device for a patient support. USP2006087083012.
  18. Vogel,John David; Hanson,Thomas W.; Crandall,Craig; Kummer,Joseph A.; Frondorf,Michael M.; Lubbers,David P.; Kappeler,Ronald P.; Wilson,Bradley T.; Metz,Darrell L.; Smith,Doug K.; Ruschke,Jeffrey A.;. Motorized traction device for a patient support. USP2007037195253.
  19. Vogel,John David; Hanson,Thomas W.; Crandall,Craig; Kummer,Joseph A.; Frondorf,Michael M.; Lubbers,David P.; Kappeler,Ronald P.; Wilson,Bradley T.; Metz,Darrell L.; Smith,Doug K.; Ruschke,Jeffrey A.;. Motorized traction device for a patient support. USP2006087090041.
  20. Vogel,John David; Hanson,Thomas W.; Crandall,Craig; Kummer,Joseph A.; Frondorf,Michael M.; Lubbers,David P.; Kappeler,Ronald P.; Wilson,Bradley T.; Metz,Darrell L.; Smith,Doug K.; Ruschke,Jeffrey A.; Vodzak,John; Stratman,Terry J.; Oberhaus,Eric W.. Motorized traction device for a patient support. USP2008087407024.
  21. Isola, Robert. Motorized wheelbarrow. USP2014108869922.
  22. Robinson, Kenneth I.; Robinson, Stephanie Dashiell. Motorized wheelbarrow. USP2012088235153.
  23. Adkins, Terry. Motorized wheelbarrow and associated method. USP2010087775306.
  24. Bhai, Aziz A.. Patient support apparatus with drive wheel speed control. USP2012098260517.
  25. Newkirk, David C.; Heimbrock, Richard H.; Hornbach, David W.. Patient support apparatus with motorized traction control. USP2011118056162.
  26. Heimbrock, Richard H.; Vogel, John D.; Webster, Thomas M.. Patient support apparatus with powered wheel. USP2013038397846.
  27. Heimbrock, Richard H.; Vogel, John D.; Webster, Thomas M.. Patient support apparatus with powered wheel. USP2012088240410.
  28. Thodupunuri, Mahesh Kumar; Guthrie, Brian; Byers, John G.. Person support apparatus power drive system. USP2017079707143.
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  30. Hiroshi Sueshige JP; Kazuyoshi Miyahara JP. Power-assisted hand carrier. USP2002106470981.
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  32. Bhai, Aziz A.; Hamberg, Stephen R.; Reinke, Christian H.; McCaig, Steven V.. Powered transport system and control methods. USP2014068757308.
  33. Zerhusen, Robert M.; McCaig, Steven V.. Push handle with pivotable handle post. USP2010097789187.
  34. Hamberg, Stephen R.; Zerhusen, Robert M.; Reinke, Christian H.. Push handle with rotatable user interface. USP2011027886377.
  35. DeVito Angelo. Turnable tractor vehicle having fixed axle. USP2001076254313.
  36. Kappeler, Ronald P.; Zerhusen, Robert M.; McCaig, Steven V.; Reinke, Christian H.. User interface and control system for powered transport device of a patient support apparatus. USP2011027882582.
  37. Hamberg, Stephen R.; Zerhusen, Robert M.; Reinke, Christian H.. User interface for power drive system of a patient support apparatus. USP2013078474073.
  38. Hamberg, Stephen R.; Zerhusen, Robert M.; Reinke, Christian H.. User interface for power drive system of a patient support apparatus. USP2014068756726.
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  40. John D. Schaefer, III. Wheelbarrow with selective auxiliary electric power assist. USP200208D461613.
  41. Loomans, Timothy L.. Wild game cart. USP2013028366125.