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특허 상세정보

Three-position hand truck using multiple locking mechanisms and/or a combination connecting member and channel

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) B62B-001/00   
미국특허분류(USC) 280/04718; 280/0472; 280/04727; 280/651
출원번호 US-0649933 (2000-08-29)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    Akin, Gump, Strauss, Hauer & Feld, L.L.P.
인용정보 피인용 횟수 : 46  인용 특허 : 7
초록

A hand truck convertible into either one of a cart and an inclined cart includes a primary frame having a first pair of wheels rotatably mounted thereon. A secondary frame is pivotally attached to the primary frame and has at least one additional wheel rotatably mounted thereon. A connecting member is attached to the secondary frame. A first locking mechanism is attached to the primary frame and detachably secures the secondary frame to the primary frame while the secondary frame is in the hand-truck-position and while the secondary frame is in the incli...

대표
청구항

1. A convertible hand truck, comprising:a primary frame having a first pair of wheels rotatably mounted thereon, said primary frame includes a channel; a secondary frame pivotally attached to said primary frame and having at least one additional wheel rotatably mounted thereon, said secondary frame being movable into a hand-truck-position, generally parallel to said primary frame, a cart-position, generally perpendicular to said primary frame, and an inclined-cart-position, generally positioned at a predetermined angle with respect to said primary frame,...

이 특허를 인용한 특허 피인용횟수: 46

  1. Gedeon-Janvier, Maxime. Adjustable and collapsible hand truck with lifting apparatus. USP2016049321471.
  2. Rich, Steve; Spencer, Paul; Jarrell, Jeff Carson; Melvin, Ronald David; Levins, Rob. Adjustable lift truck. USP2015099139214.
  3. Kane,Gregory. Auxiliary wheel set (kick-back) adapter for two-wheeled hand truck. USP2006087083174.
  4. Wise, Robert W.. Collapsible infeed/outfeed table. USP2009067543614.
  5. Tiramani,Paolo; Blass,Samvit; Courter,Adam. Collapsible multifunction apparatus. USP2008027331596.
  6. Nowak, Mark Adam. Combination cart and stand device. USP2012018087678.
  7. Josephsen, Greg. Convertible cart device. USP20181210160467.
  8. Chaseateau, Frehause A.. Convertible dolly/table. USP2009047513511.
  9. Malone, Jr., William E.. Convertible hand cart with improved locking means. USP2003076588775.
  10. Meyers, Paul F.; Meyers, Thomas J.. Convertible hand truck. USP2012018100430.
  11. Meyers, Paul F; Meyers, Thomas J. Convertible hand truck. USP2013068465046.
  12. Su, Chung-Hsiu. Convertible hand truck. USP2017069688298.
  13. Wise, Robert W.. Counterbalanced universal mobile saw stand. USP2005056886836.
  14. Tse, Yuet Keung; Tse, Chi Bun; Potempa, Michael. Golf bag cart. USP2013048408562.
  15. Coslovi,Claudio. Hand and platform trolley. USP2008097422229.
  16. Gibson, William R. Hand truck. USP201602D749812.
  17. Plummer, Allan. Hand truck. USP201407D709664.
  18. Tsai, Haiming. Hand truck. USP2009107600765.
  19. Tsai, Haiming. Hand truck. USP2005096938905.
  20. Liu, Chi Keung. Handcart. USP2015099126611.
  21. Tsai,Haiming. Handle positioning device for a hand truck. USP2007037195255.
  22. McKinnon, Peter Rodney. Handtruck. USP2013108556279.
  23. Gibson, William R. Load carrier with mode changer. USP2015089096249.
  24. Gibson, William R. Load carrier with mode changer. USP2015129211894.
  25. Gibson, William R. Load carrier with mode changer. USP20181110118633.
  26. Knoebel, Norwood B.. Material-handling device. USP2010017641206.
  27. Gotfrid, Evgeniya. Method and system for folding a personal vehicle. USP20181010093380.
  28. Blake, Richard R.; Russell, Jeffrey T.; Jones, Charles L.; Gray, Paul J.; Fjelstul, Jeffrey W.; Hinrichs, Steven P.; Lundy, Richard T.; Wu, Henry H.. Mobile appliance lift tool. USP2005086929250.
  29. Colacecchi, Jay W.. Monument transport tool and method. USP2013018360444.
  30. Wang, Wen-Fa. Multi-function cart. USP2017059637149.
  31. Gibson, William R. Multi-mode hand truck. USP2017049616907.
  32. Wise, Robert W.. Multiple link, self-jacking work cart wa002. USP2011077971898.
  33. Stallbaumer, John J.. Multipurpose storage and transport cart. USP2004076758482.
  34. Arceta, Radmond. Narrow-aisle restocking cart. USP200312D484295.
  35. Arceta, Radmond. Narrow-aisle restocking cart. USP200405D490200.
  36. Arceta, Radmond. Placard. USP200502D501888.
  37. Flegel, David D.. Portable power source having detachably mounted accessory. USP2012048154137.
  38. Wise, Robert W.. Self-jacking four wheel cart. USP201001D608969.
  39. Park,Sung Hyun. Shock absorber replacement apparatus. USP2007107284309.
  40. Castaneda, Anthony T.; McCroskey, William W.; Schloemer, James F.; Schumacher, Mark E.; Siefring, Vernon W.; Wellman, Timothy A.. Steer correction for a remotely operated materials handling vehicle. USP2013058452464.
  41. Henao, Elvis. Transformative hand cart. USP2016069365225.
  42. McKinnon, Peter R.; Taylor, Gerry. Wheel. USP201712D804766.
  43. McKinnon, Peter R.; Taylor, Gerry. Wheel frame. USP2016029248698.
  44. Nassaux, Philippe P.; Raley, Jefferson W.. Wheeled apparatus having multiple wheelbase configurations. USP2013048413999.
  45. Arceta, Radmond. Work surface. USP200312D484664.
  46. Mueller, Mark J.. Work tool transporting and support apparatus. USP2003036530583.