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특허 상세정보

Foldable cart

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) B62B-001/04   
미국특허분류(USC) 280/40 ; 280/655 ; 280/4729
출원번호 US-0270373 (1994-07-05)
발명자 / 주소
출원인 / 주소
인용정보 피인용 횟수 : 44  인용 특허 : 0
초록

A foldable cart comprises a handle, a pair of wheels pivotally mounted to the bottom respective ends of the handle, and a loading platform at the bottom of the cart in an opposite direction with respect to the wheels. The loading platform has a pair of conical gears at the rear respective ends adapted to engage with a pair of crown gears located at the bottom ends of the wheel frames to adjust the position of the loading platform with respect to the cart.

대표
청구항

A foldable cart comprising a handle having two ends turned 90 degrees downwardly and pivotally connected to a pair of legs, a pair of U-shaped members at said pivotal connection of said handle and said legs, a pair of wheel frames and a loading platform being secured to the bottom portions of said legs, and the improvement comprising: said loading platform having a pair of fixturing housings at respective rear corners and a pair of guiding blocks secured in said fixturing housings, each of said fixturing housings having an aperture formed through an oute...

이 특허를 인용한 특허 피인용횟수: 44

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  2. Lieblein,Joel. Cart. USP200710D553324.
  3. Yang, Cheng-Chiang. Cart. USP201207D664733.
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  6. Miller,Robert Ernest; Robens,Wayne. Collapsible cart for a paint spray pump. USP200801D558948.
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  9. James Tsai TW. Collapsible handcart. USP2002086439596.
  10. Thomas A. Garland. Collapsible stroller. USP2002066402186.
  11. James Tsai TW. Collapsible trolley. USP2002076425599.
  12. Powwarynn, Thomas. Combination motorized wheeled vehicle and portable hand truck. USP2017059663130.
  13. O'Connor, Charles S.. Convertible carrying case systems and collapsible wheeled carts for carrying cases. USP2009117614628.
  14. Herbault, Patrick; Marques, Frédéric; Saulnier, Fabien. Convertible transport trolley having a pair of fold-away legs and simultaneously fold-away wheels. USP2017059643628.
  15. Zimmer,J��rgen. Dolly. USP2008067387306.
  16. Lopez, Albert Manuel; Lopez, Heather Noel. Dolly for field technicians. USP20180610005481.
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  18. Su, Chung-Hsiu. Foldable cart. USP2015129199655.
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  20. Khodor, Leonid. Foldable hand truck capable of traversing obstacles. USP20181110131374.
  21. Chung-Hsien Chang TW. Foldable pushcart. USP200202D453602.
  22. Khodor, Leonid. Folding chassis for manually driven carrier vehicles capable of traversing obstacles. USP2015119187106.
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  24. Su, Chung-Shiu. Hand trolley. USP20180810040466.
  25. Tsai, Hai-Ming. Hand trolley with a load tray co-working with wheel sets. USP2015018936259.
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  29. Tsai, Haiming. Handcart. USP2013068454033.
  30. Zimmer, Jurgen. Handcart. USP200401D485038.
  31. Tsai,Chun Sheng. Handcart with foldable handle structure. USP2008117445231.
  32. Fenton Timm (Wooster OH) Hurtienne Dan (Arkansas City KS). Insulated container. USP1997115683097.
  33. Cook James E.. Multipurpose cart. USP200105D441935.
  34. Charles M. Weldon. Portable cooler caddy and cup holder. USP2002056386557.
  35. Johnson,Chris; McMillan,A. C.. Portable luggage carts/carriers. USP2006117140635.
  36. Alexander, Gus; Sherwood, Ryan D; Alexander, Christopher C; Alexander, William N. Pressure washer. USP2011110648082.
  37. Su Chung-Shiu,TWX. Push cart. USP2000046053514.
  38. Su, Chung-Shiu. Push cart. USP200402RE38436.
  39. Chang,Shih Fang. Pushcart. USP200606D522708.
  40. Roudebush H. Richard. Step stool and dolly apparatus. USP2000126158749.
  41. Chen,Chang Fu. Suitcase. USP200809D577490.
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  43. Su,Chung Shiu. Trolley structure. USP2006087097183.
  44. vom Braucke Hans (Vlotho DEX) vom Braucke Manfred (Bielefeld DEX). Two-wheeled trolley with vertical frame and foldable support wheels. USP1997055630601.