• 검색어에 아래의 연산자를 사용하시면 더 정확한 검색결과를 얻을 수 있습니다.
  • 검색연산자
검색연산자 기능 검색시 예
() 우선순위가 가장 높은 연산자 예1) (나노 (기계 | machine))
공백 두 개의 검색어(식)을 모두 포함하고 있는 문서 검색 예1) (나노 기계)
예2) 나노 장영실
| 두 개의 검색어(식) 중 하나 이상 포함하고 있는 문서 검색 예1) (줄기세포 | 면역)
예2) 줄기세포 | 장영실
! NOT 이후에 있는 검색어가 포함된 문서는 제외 예1) (황금 !백금)
예2) !image
* 검색어의 *란에 0개 이상의 임의의 문자가 포함된 문서 검색 예) semi*
"" 따옴표 내의 구문과 완전히 일치하는 문서만 검색 예) "Transform and Quantization"

특허 상세정보


국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) B62B-001/10   
미국특허분류(USC) 280/047.24 ; 280/040 ; 280/038 ; 280/047.27 ; 280/047.315
출원번호 US-0908421 (1997-08-07)
발명자 / 주소
대리인 / 주소
인용정보 피인용 횟수 : 42  인용 특허 : 8

A handcart is constructed to include two main frames having outward expanded shoulder and lower portions, an extension handle assembly, an upper crossbar, a lower crossbar, a carrier, and two wheel holders. The two main frames have two upper ends fixedly received in side holes formed at the upper crossbar and two lower ends pivotally connected to the carrier. The extension handle assembly includes two outer pipes, two inner pipes, and a top handle. The upper crossbar is provided with a mechanism means to control the extension and collapse of the inner pi...


[ What is claimed is:] [1.] A handcart, comprising a frame structure that includes two main frame elements (10,10) having upper and lower ends, an upper crossbar (30) connecting the upper ends of said main frame elements, and a lower crossbar (40) connecting said frame elements below said upper crossbar;first and second pipes (22,22) extending between said upper crossbar and said lower crossbar; an extensible handle assembly comprising third and fourth pipes (21,21) telescopically slidable in said first and second pipes, and a handle handgrip (23) connec...

이 특허를 인용한 특허 피인용횟수: 42

  1. Rich, Steve; Spencer, Paul; Jarrell, Jeff Carson; Melvin, Ronald David; Levins, Rob. Adjustable lift truck. USP2015099139214.
  2. Biesinger, Quinn Michael; Birkert, Thomas E.. Carrier transporter. USP2018059963158.
  3. James Tsai TW. Collapsible handcart. USP2002086439596.
  4. Thomas A. Garland. Collapsible stroller. USP2002066402186.
  5. James Tsai TW. Collapsible trolley. USP2002076425599.
  6. Powwarynn, Thomas. Combination motorized wheeled vehicle and portable hand truck. USP2017059663130.
  7. O'Connor, Charles S.. Convertible carrying case systems and collapsible wheeled carts for carrying cases. USP2009117614628.
  8. Herbault, Patrick; Marques, Frédéric; Saulnier, Fabien. Convertible transport trolley having a pair of fold-away legs and simultaneously fold-away wheels. USP2017059643628.
  9. Zimmer,J��rgen. Dolly. USP2008067387306.
  10. Lopez, Albert Manuel; Lopez, Heather Noel. Dolly for field technicians. USP20180610005481.
  11. Jackson, Jr., Thomas Joseph. Expedition carts and associated methods. USP2018059969412.
  12. Jackson, Jr., Thomas Joseph. Expedition carts and associated systems and methods. USP2016089409584.
  13. Jian, Shikun. Flat platform cart with collapsible casters. USP2010087784816.
  14. Chang, Wen-Tung; Ho, Edwin. Foldable hand cart. USP2013128602444.
  15. Khodor, Leonid. Foldable hand truck capable of traversing obstacles. USP20181110131374.
  16. Tsai,Chun Sheng. Foldable handcraft capable of being carried about on its wheels after being folded. USP2008107441785.
  17. Wang,Wen Fa. Folding anchor structure for foldable hand trucks. USP2006057044484.
  18. Gregory, Joseph A.. Folding cart. USP2004026685214.
  19. Liao, Gordon. Golf bag cart. USP2014058720912.
  20. Su, Chung-Shiu. Hand trolley. USP20180810040466.
  21. Tsai, Hai-Ming. Hand trolley with a load tray co-working with wheel sets. USP2015018936259.
  22. Gibson, William R. Hand truck. USP201602D749812.
  23. Tsai,Haiming. Hand truck. USP2008077398990.
  24. Daniel A. Matre ; Terrence K. Mahon ; Roland E. C. Schwarz. Hand truck body. USP200203D454997.
  25. Li, Hong Min. Hand truck with adjustable wheel assembly. USP2014078770598.
  26. Zimmer, Jurgen. Handcart. USP200401D485038.
  27. Barenbrug, Machiel Gerardus Theodorus Marie; Spoek, Erik Geert; Den Boer, Jacob Geert Arie; Van Zijl, Marc Constantijn. Luggage assembly and a frame. USP20181110130150.
  28. Judy Miles. Luggage cart handle. USP2002106464245.
  29. Den Boer, Jacob Geert Arie; Ten Horn, Vincent Bernardus Hubertus; McMillan, David; Barenbrug, Machiel Gerardus Theodorus Marie. Luggage item, a luggage item system, a luggage item adaptor. USP2018029888752.
  30. Low Qwai H. ; Thavarajah Manickam ; Chia Chok J. ; Alagaratnam Maniam. Molded laminate package with integral mold gate. USP1999035886398.
  31. Matre, Daniel A.; Mahon, Terrence K.; Schwarz, Roland E. C.. Plastic hand truck with folding metal platen. USP2003096616153.
  32. Johnson,Chris; McMillan,A. C.. Portable luggage carts/carriers. USP2006117140635.
  33. Su Chung-Shiu,TWX. Push cart. USP2000046053514.
  34. Su, Chung-Shiu. Push cart. USP200402RE38436.
  35. Chang,Shih Fang. Pushcart. USP200606D522708.
  36. Hardin,Kelly L.; Hardin,Gregory T.; Brockmann,Robert C.. Shopping bag carrier. USP2007037188859.
  37. Overland, Roald. Stackable shopping basket with a pull handle. USP2015018936255.
  38. Roudebush H. Richard. Step stool and dolly apparatus. USP2000126158749.
  39. Hartenstine Curtis M.. Stroller and a fold latch assembly thereof. USP2000126155740.
  40. Su,Chung Shiu. Trolley structure. USP2006087097183.
  41. Kuo Chung-Hsien,TWX. Two-stage expansion/collapse control mechanism for use on a hand-trailable luggage case. USP2001026182981.
  42. Larson, Donald O.; Larson, Kasey P.. Wheeled attachment for a litter. USP2013048424899.