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특허 상세정보

MyON담기
내보내기 페이스북 공유 카카오톡 공유

Combination hand truck, step ladder and dolly

특허상세정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) B62B-001/12    B62B-003/02   
미국특허분류(USC) 280/030; 182/020
출원번호 US-0412610 (2003-04-11)
발명자 / 주소
출원인 / 주소
인용정보 피인용 횟수 : 33  인용 특허 : 57
초록
▼

A combination hand truck, dolly and step ladder device includes a hand truck frame and a step ladder frame that are pivotally attached to one another and can be fixed at selective angles with respect to each other to form a hand truck, a dolly and a step ladder. In a step ladder configuration, the top step of a step assembly is secured to a cross member of the hand truck frame so as to lock the hand truck frame and the step ladder frame into a substantially fixed relationship to one another. In a dolly configuration, the hand truck frame becomes the hand...

대표
청구항
▼

1. A multi-use move, lift and support device, comprising:a step ladder frame having a handle at a first end and a pair of elongated legs extending to a second end; a hand truck frame pivotally connected to the step ladder frame at a first end and elongated legs extending to a second end, wherein the hand truck frame has at least three positions relative to the step ladder frame for a step ladder configuration, a hand truck configuration, and a dolly configuration; a step assembly attached to the step ladder frame, and having a plurality of steps pivotall...

이 특허에 인용된 특허 (57)

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  2. Bonewicz ; Jr. Theodore J. (Philadelphia PA) Leichter Henry S. (Philadelphia PA). Carrier for use on beaches, etc.. USP1989124887837.
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  5. Morrissette Roger J. (Southbridge MA). Collapsible cart. USP1996105562299.
  6. Krause Gnther (Porschestrasse 9 D-6320 Alsfeld DEX). Collapsible multi-purpose ladder. USP1984104474264.
  7. Bedja Abdelkrim ; Moser Gregory C. ; King Raymond P.. Collapsible step stool with step movement guide system. USP2000036039149.
  8. Brander Hans I. (Talbystrand Sdertlje SEX S-151 50). Combi-equipment. USP1984064456094.
  9. Dittmer Thomas E. (317 Peru-Olena Rd. Norwalk OH 44857). Combination chair and hand truck. USP1997095669659.
  10. King Mynor (1652 Pacific Ave. #1 San Leandro CA 94577). Combination chair and luggage carrier. USP1989044824167.
  11. Tornabene Dean ; Perez Charles. Combination hand truck, stepladder and basket carrier. USP2001016173811.
  12. Purkapile Emerson J. (Chicago IL). Combination ladder and hand truck. USP1990064934485.
  13. Ast Dale A. (Wichita KS). Combination stepladder and hand truck apparatus. USP1985014494626.
  14. Murray Douglas J. (9450 SW. Lehman St. Portland OR 97223). Combination stepladder and load lifting apparatus. USP1981034258826.
  15. Brice John Nigel,CAX ITX V4A 1Y8. Combination stepladder/handtruck apparatus. USP1998115836595.
  16. Berry, David Lee. Combination tree stand, blind and equipment carrier. USP2003016505707.
  17. Tarran ; Phil K.. Combined hand truck and ladder. USP197808D249032.
  18. Tarran ; Phil Keith. Combined hand truck and ladder. USP1978084106590.
  19. Tarran Phil K. (121 W. Orange Ave. Vista CA 92083). Combined hand truck and step stool. USP1980114235449.
  20. Jimmy J. Becker. Combined pair of ladders and transportation dolly device. USP2002116474663.
  21. Yoo, Hoe Gwan. Combined stepladder and hand truck assembly. USP2003116651774.
  22. Ohlsson .ANG.ke,SEX. Combined trolley and seat. USP2001036196560.
  23. Hobson Michael J. (Releath Water Farm Releath ; Helston ; Cornwall GB2). Combined trolley and seat unit. USP1989074846486.
  24. Kriebel Arlin L. (R.D. #1 87 Hunsberger Rd. Telford PA 18969). Crate moving device. USP1995065427393.
  25. Eagleson Bruce A. (109 South St. Lagrange IN 46761). Device for hunting large and small game. USP1991115064020.
  26. Stallbaumer John J. ; Rahn Robert D.. Dual hand truck. USP2001106308967.
  27. Lee Dickey (Taipei TWX). Fixing knuckles in foldable aluminum ladder. USP1991105058239.
  28. Huang Li-chu Chen,TWX. Foldable mechanism for use in a stroller. USP1999025871227.
  29. Wang, Chien-Yuan. Foldable multi-position ladder joint. USP1985094543006.
  30. William R. Gibson ; Enrique R. Giner ; Maria Antonieta Moreno-Giner. Foldable step stool with leg lock and handle. USP2002096454050.
  31. Cone Richard E. (Dayton OH) Turner Dennis M. (Columbus IN). Foldable stroller. USP1993115257799.
  32. Woychio Stephen (c/o George Spector ; 3615 Woolworth Bldg. ; 233 Broadway New York NY 10007) Spector George (3615 Woolworth Bldg. ; 233 Broadway New York NY 10007). Folding cart. USP1982044326731.
  33. Gordon Donald J. (Rockwood CAX) Johnson Frank H. (Cambridge CT CAX) Schick George L. (Easton CT) Smart J. David (Cambridge CAX). Hand cart. USP1982074341393.
  34. Uchida Taichi (29 Kamibetto-cho Kitashirakawa ; Sakyo-ku ; Kyoto-shi ; Kyoto-fu JPX). Hand truck. USP1981034253546.
  35. Haaser Gregory John. Hand truck attachment for a ladder. USP2001126328330.
  36. Stahler ; Sr. Richard D.. Hand truck convertible to a cart. USP2001126328319.
  37. James L. Cates. Handcart with detachable bin. USP2002056390495.
  38. Harlan Campbell A.. Home and garden truck. USP2000106131926.
  39. Wang Chien-Yuan (No. 17 ; Alley 6 ; Lane 24 ; Pa Te Rd. Sec. 4 ; Taipei TWX). Joint mechanism for folding ladders, furniture and the like. USP1986034577986.
  40. Giezendanner Ruedi (Rosenstrasse 16 CH-6010 Kriens CHX). Ladder formed as a multiple-purpose device. USP1984054448282.
  41. Wan-Li Chang (Taipei TWX). Ladder joint with engagement spring member. USP1991065022118.
  42. Winter Milton (13206 Challaburton Dr. Dallas TX 75234). Ladder tray. USP1981044261435.
  43. Lin Sung C. (Taipei TWX). Lockable hinge joint for folding ladders. USP1992095142739.
  44. Wallace William J.,CAXITX L0B 1J0. Locking pivot connection for cot-chair. USP2000086102479.
  45. Schuh Karl (Pluderhausen DT) Schniepp Hans (Lorch DT). Multi-position safety lock joint, particularly for folding ladders. USP1976053955240.
  46. Klose Odo (Wuppertal DEX). Multi-purpose piece of furniture for use as chair and step-ladder. USP1981034258827.
  47. Yoo Hoe G. (Seoul KRX). Positioning joint for folding ladders. USP1988094770559.
  48. Hsu Sen-Jung,TWX. Scoring board mounting arrangement for a golf cart. USP2000056059158.
  49. Campbell John C. (11A Cheriton Avenue Clayhall ; Ilford ; Essex GB2). Seat device for a ladder. USP1988034730697.
  50. Roudebush H. Richard. Step stool and dolly apparatus. USP2000126158749.
  51. Guidara Orlando (79 Livingstone Ave. Beverly MA 01915). Stepladder dolly. USP1976053954155.
  52. Wilson James R. (P.O. Box 263 Looper TX 75432). Stepladder dolly. USP1995015382032.
  53. Lin Kao-Hsien,TWX. Structure of a joint for bracing rods of a baby stroller. USP2001056238125.
  54. Cheng Chiun-Jer (1 Fl. ; No. 20 ; Lane 327 ; Sec. 2 ; Chung Shan Rd. Chung Ho City ; Taipei Hsien TWX). Trolley with a foldable seat assembly. USP1992115161811.
  55. Cheng Chiun-Jer (No. 20 ; Lane 327 ; Sec. 2 ; Chung Shan Rd. Chung Ho City ; Taipei Hsien TWX). Trolley with a retractable wheel assembly. USP1994045306027.
  56. Liang Sung-Ming (No. 21 ; Lane 169 ; Fu-Shan St. Chang-Hua City TWX). Trunk case assembly. USP1996045507508.
  57. Mueller, Mark J.. Work tool transporting and support apparatus. USP2003036530583.

이 특허를 인용한 특허 피인용횟수: 33

  1. D'Sanson, Henry Sampiano. 3 in 1 ladder, dolly, and seating systems. USP2016089409587.
  2. Kimmich, Karl C.; Field, Bradley J.. Accessory stand. USP201705D785981.
  3. Gedeon-Janvier, Maxime. Adjustable and collapsible hand truck with lifting apparatus. USP2016049321471.
  4. Katz, Amir. Collapsible clamping work table. USP2009097588255.
  5. Davis, Gregory J.. Collapsible tree stand with dolly. USP2013048424639.
  6. Wang,Sheng Shih. Combination hand truck ladder. USP2009027487859.
  7. Josephsen, Greg. Convertible cart device. USP20181210160467.
  8. Meyers, Paul F.; Meyers, Thomas J.. Convertible hand truck. USP2012018100430.
  9. Meyers, Paul F; Meyers, Thomas J. Convertible hand truck. USP2013068465046.
  10. Su, Chung-Hsiu. Convertible hand truck. USP2017069688298.
  11. Wang, Jingfang. Creeper for car repairing. USP2014068746708.
  12. Hernandez, Hector Ray. Folding table assembly. USP2009067546810.
  13. Hernandez,Hector Ray. Folding table assembly. USP2008037341006.
  14. Gibson, William R. Hand truck. USP201602D749812.
  15. Berlinger, Darryl Edward. Hand truck exchangeable tool attachment method. USP2017109776650.
  16. Berlinger, Darryl Edward. Hand truck exchangeable tool attachment method. USP2017059643631.
  17. Gibson, William R. Load carrier with mode changer. USP2015089096249.
  18. Gibson, William R. Load carrier with mode changer. USP2015129211894.
  19. Gibson, William R. Load carrier with mode changer. USP20181110118633.
  20. Astor, Kyle G.. Method and stepladder with a tray. USP2013118579083.
  21. Jensen, Steven Michael. Modular utility stand storage apparatus and method. USP2012068191906.
  22. Shai,Moti. Move-on ladder system. USP2006107121381.
  23. Wang, Wen-Fa. Multi-function cart. USP2017059637149.
  24. Gibson, William R. Multi-mode hand truck. USP2017049616907.
  25. Kopala, Jr.,Walter W.. Pneumatic table assembly. USP2007127311048.
  26. Saulet,Gerald A.. Rolling ladder. USP2006087086501.
  27. Hinds,Jason Mark. Seating apparatus. USP2007037188844.
  28. Rooney, Peter; Rooney, Karen. Stair. USP20181210145175.
  29. Ursell, Mike; Ursell, Connor; Cross, Mark; Ursell, Sam; Neilson, Ken. Tool stand. USP201810D830433.
  30. Cooper, Dale. Transport device frame assembly. USP2013108544874.
  31. Cooper, Dale. Transport device removable bucket. USP201211D671704.
  32. Nassaux, Philippe P.; Raley, Jefferson W.. Wheeled apparatus having multiple wheelbase configurations. USP2013048413999.
  33. Spruth, Michael Paul; Allen, Dan. Wheeled ladder caddy. USP2017099751546.

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