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특허 상세정보

Flat platform cart with collapsible casters

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) B62B-003/02   
미국특허분류(USC) 280/651; 280/038
출원번호 UP-0209219 (2008-09-12)
등록번호 US-7784816 (2010-09-20)
발명자 / 주소
인용정보 피인용 횟수 : 22  인용 특허 : 28
초록

A flat platform cart with collapsible casters which is stable in positioning and convenient in collapsing and use. It comprises a supporting section, a push-pull section and a caster section connected thereto by a linkage means, and an extension positioning means which enables the push-pull section and the caster section to be maintained in an extending state; the extension positioning means comprises a vertical positioning means which simultaneously locks the push-pull section and the caster section in position and a horizontal positioning means dispose...

대표
청구항

What is claimed is: 1. A flat platform cart with collapsible casters, comprising a supporting section, a push-pull section and a caster section connected thereto by a linkage means, and an extension positioning means which enables the push-pull section and the caster section to be maintained in an extending state, wherein the supporting section comprises a supporting frame (2), supporting bases (22) and a load supporting platform (1) which are interconnected together, the push-pull section has two supporting bars (4) which are hinged onto the supporting...

이 특허에 인용된 특허 (28)

  1. Home,William. Barbecue device having foldable cart. USP2008047360783.
  2. Leimgruber John (4822 Seventh Ave. Temple PA 19560). Carriage device. USP1987044659096.
  3. Snider Richard C. (130 N. River Dr. Pennsville NJ 08070). Carriage for a juvenile car seat. USP1995045403022.
  4. Abel,Helmut. Cart with foldable wheels and center pole. USP2006107118115.
  5. DeMars Robert A. ; Cline Jack B.. Collapsible dolly. USP1998095803471.
  6. vom Braucke Manfred (Bielefeld DEX) vom Braucke Hans (Vlotho DEX). Collapsible hand truck. USP1991024993727.
  7. Ambasz Emilio (295 Central Park West New York NY 10024). Collapsible luggage carrier. USP1990044917392.
  8. Shapiro,Richard N.. Compact wagon or cart including stowable wheels and handle. USP2006067066485.
  9. Sim Richard J. ; Zuzulock ; Jr. George T.. Convertible vehicle. USP1998065772222.
  10. Lag Fang-Hoang (No. 461 ; Jiun Her Street Taichung TWX). Foldable carriage rack. USP1994055312006.
  11. Yang Ching S. (Tainan TWX). Foldable cart. USP1995115468005.
  12. Server Perez Juan (C.N. 332 ; Km. 164 03750 Pedreguer ESX). Foldable cart for shopping. USP1991024989889.
  13. Libit Jeffrey M. (13244 Circulo Largo Ct. ; NE. Albuquerque NM 87112) Libit Sidney (Long Boat Key FL). Foldable luggage carrier. USP1993115263727.
  14. Spak Jay (514 Morse St. No.40 Oceanside CA 92054). Foldable luggage carrier. USP1990114969660.
  15. Robberson, Beverly J; Robberson, James D.. Folding cart. USP2004056733026.
  16. Ritucci, Louis N.; Patterson, Joseph K.; Barker, Donald. Folding wagon/cart. USP2005016845991.
  17. Taylor Frank E. (1440 S. Seneca Wichita KS 67213). Four wheeled hand truck. USP1981064274644.
  18. Young Horace J. (2603 ; 1100 - 8 Avenue SW. Calgary ; Alberta CAX T2P 3T9). Hand truck. USP1991125072958.
  19. Hsieh Hung-Ching,TWX ; Hsieh Yung-Shun,TWX. Handcart. USP1999115984327.
  20. Peters Calvin R. (351 N. Hardwick ; SW. Grand Rapids MI 49548). Portable cooler chest with expandable wheels and collapsible extension. USP1994025285656.
  21. Peters Calvin R. (351 N. Hardwick ; SW. Grand Rapids MI 49548). Portable cooler chest with pivoting wheels having expanded circumferential rolling surfaces. USP1995065423195.
  22. Johnson,Chris; McMillan,A. C.. Portable luggage carts/carriers. USP2006117140635.
  23. Abrams Martin (4408 Morse Ave. Lincolnwood IL 60646). Portable, collapsible luggage carrier. USP1994095348325.
  24. Su Chung-Shiu,TWX. Push cart. USP2000046053514.
  25. Su, Chung-Shiu. Push cart. USP200402RE38436.
  26. Shapiro,Richard N.. Removable and stowable wheel stands for convertible children's carrier devices. USP2007097264265.
  27. vom Braucke Hans (Vlotho DEX) vom Braucke Manfred (Bielefeld DEX). Two-wheeled trolley with vertical frame and foldable support wheels. USP1997055630601.
  28. Shapiro, Richard N.; Gurecki, Philip A.. Wheeled personal mobility devices with collapsible wheel axle assemblies and integrated steering and propulsion linkages. USP2003086607207.

이 특허를 인용한 특허 피인용횟수: 22

  1. Choi, Young Yong. Cart with easy accommodation of handle by spring. USP2017029561815.
  2. Wang, Wen-Fa; Deng, Jian-Wen; Chen, Jia-Chao. Collapsible platform truck. USP2015038979098.
  3. Herbault, Patrick; Marques, Frédéric; Saulnier, Fabien. Convertible transport trolley having a pair of fold-away legs and simultaneously fold-away wheels. USP2017059643628.
  4. Jian, Shikun. Flatbed trolley with casters capable of not folding when handle rotates. USP20181010086860.
  5. Thiel, III, Frank William. Foldable stool. USP2018049949566.
  6. Su, Chung-Shiu. Hand trolley. USP20180810040466.
  7. Gibson, William R. Hand truck. USP201602D749812.
  8. Tsai, Haiming. Handcart. USP2013068454033.
  9. Tsai, Haiming. Handcart. USP2016059327745.
  10. Gibson, William R. Load carrier with mode changer. USP2015089096249.
  11. Gibson, William R. Load carrier with mode changer. USP2015129211894.
  12. Gibson, William R. Load carrier with mode changer. USP20181110118633.
  13. Trickle, Chad Lee. Method of assembling a wheeled package. USP2017119821603.
  14. Pikulski, Joseph L.. Mobilized cooler device with fork hanger assembly. USP20180910071303.
  15. Gibson, William R. Multi-mode hand truck. USP2017049616907.
  16. Kim, Jin Ok. Pallet transfer apparatus with handle pulling type folding structure. USP2016119499186.
  17. Chen, Pingtao; Wu, Jinshui. Portable slow cooker. USP2015069055838.
  18. Trickle, Chad Lee. Retractable caster assembly and wheeled package. USP2017039586442.
  19. Fan, Chen-Lu; Shih, Chih-Kun; Lin, Chun-Hsien. Supporting device with wheels. USP2012108292309.
  20. Liao, Gordon. Three-fold three-wheel golf bag cart folding device. USP201609RE46150.
  21. Yang, Sai-Wei; Fang, Yu-Chun. Wheel frame assembly for quick expansion and folding. USP2012048152179.
  22. Lockwood, Kenneth R.. Windshield mounting assembly. USP201506D732259.