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특허 상세정보

Step stool and dolly apparatus

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) B62B-001/00   
미국특허분류(USC) 280/047.16 ; 280/047.18 ; 280/047.2 ; 280/047.28 ; 280/047.29 ; 182/016 ; 182/020
출원번호 US-0160951 (1998-09-25)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    Barnes & Thornburg
인용정보 피인용 횟수 : 16  인용 특허 : 23
초록

A step stool having a front frame member having a bottom end and a rear frame member having a bottom end coupled to the front frame member for pivotable movement about a frame pivot axis between an opened position in which the bottom end of the front frame member is spaced apart from the bottom end of the rear frame member and a collapsed position in which the bottom ends of the front and rear frame members are positioned to lie adjacent to one another and a leg cap including a flange and a flange support fixture coupled to the bottom end of the front fr...

대표
청구항

[ What is claimed is:] [1.] A step stool comprisinga frame including a front frame member having a bottom end and a rear frame member having a bottom end and the rear frame member coupled to the front frame member for pivotable movement about a frame pivot axis between an opened position in which the bottom end of the front frame member is spaced apart from the bottom end of the rear frame member and a collapsed position in which the bottom ends of the front and rear frame members are positioned to lie adjacent to one another,a leg cap including a flange...

이 특허에 인용된 특허 (23)

  1. Kazmark ; Jr. Eugene A.. Collapsible cart. USP1999085941543.
  2. DeMars Robert A. ; Cline Jack B.. Collapsible dolly. USP1998095803471.
  3. Brander Hans I. (Talbystrand Sdertlje SEX S-151 50). Combi-equipment. USP1984064456094.
  4. Zabala Teresa A. (3735 Benton St. ; NW. Washington DC 20007) Affleck David L. (Scotts Valley CA). Combination folding stool and dolly. USP1984094471969.
  5. Purkapile Emerson J. (Chicago IL). Combination ladder and hand truck. USP1990064934485.
  6. Ast Dale A. (Wichita KS). Combination stepladder and hand truck apparatus. USP1985014494626.
  7. Murray Douglas J. (9450 SW. Lehman St. Portland OR 97223). Combination stepladder and load lifting apparatus. USP1981034258826.
  8. Brice John Nigel,CAX ITX V4A 1Y8. Combination stepladder/handtruck apparatus. USP1998115836595.
  9. Tarran Phil K. (121 W. Orange Ave. Vista CA 92083). Combined hand truck and step stool. USP1980114235449.
  10. Yang Ching S. (Tainan TWX). Foldable cart. USP1995115468005.
  11. Dunkle Gary L. (Connersville IN). Foldable hand truck apparatus. USP1996085549317.
  12. Lin Fan-Nan (Taipei TWX). Foldable ladder. USP1992025086872.
  13. Uchida Taichi (29 Kamibetto-cho Kitashirakawa ; Sakyo-ku ; Kyoto-shi ; Kyoto-fu JPX). Hand truck. USP1981034253546.
  14. Hsieh Hung-Ching,TWX ; Hsieh Yung-Shun,TWX. Handcart. USP1999115984327.
  15. Giezendanner Ruedi (Rosenstrasse 16 CH-6010 Kriens CHX). Ladder formed as a multiple-purpose device. USP1984054448282.
  16. Rohde Earl C. (327 Green Muscatine IA 52761). Lookout convertible to a compact dolly. USP1984014428456.
  17. Voegele Wolfgang (Zeppelinstrasse 12 7992 Tettnang DEX). Multi-purpose hand truck. USP1990064934718.
  18. Tsai James (103 ; Ta Ming 1 Rd. Tung Pao Tsun ; Tan Tzu Hsiang ; Taichung Hsien TWX). Retractable handle for hand trucks or the like. USP1995115464244.
  19. Nakatani Koma (Tokyo JPX). Shoulder-carriable cart. USP1982124362307.
  20. Guidara Orlando (79 Livingstone Ave. Beverly MA 01915). Stepladder dolly. USP1976053954155.
  21. Wilson James R. (P.O. Box 263 Looper TX 75432). Stepladder dolly. USP1995015382032.
  22. Butzen Michael J.. Two-wheeled dolly for moving heavy objects. USP1998045738480.
  23. vom Braucke Hans (Vlotho DEX) vom Braucke Manfred (Bielefeld DEX). Two-wheeled trolley with vertical frame and foldable support wheels. USP1997055630601.