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특허 상세정보

Collapsible chair

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) B62B-005/02   
미국특허분류(USC) 280/005.22; 280/250.1
출원번호 US-0389181 (2003-03-14)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    Scully, Scott, Murphy &
인용정보 피인용 횟수 : 7  인용 특허 : 42
초록

A collapsible chair for transporting people up and down stairs, comprising a main frame, a seating assembly, and a rail assembly. The seating assembly is provided to form a seat for a person, and this assembly is pivotally connected to the main frame for pivotal movement between open and closed positions. The rail assembly is used to support the chair for movement down steps, and this assembly is also pivotally connected to the main frame for pivotal movement between open and closed positions. In accordance with a first aspect of the invention, the chai...

대표
청구항

The invention claimed is: 1. A collapsible chair for transporting people up and down stairs, the chair comprising: a main frame; a seating assembly pivotally connected to the main frame for pivotal movement between open and closed positions; a pair of wheels rotatable mounted on the main frame to support the chair for movement over a surface; a rail assembly to support the chair for movement down stairs, and pivotally connected to the main frame for pivotal movement between open and closed positions; an upper frame section connected to and supported by ...

이 특허에 인용된 특허 (42)

  1. Simpson Robert C. (1231 Azalea Dr. Tallahassee FL 32301). Adjustable collapsible wheelchair. USP1984024431076.
  2. Haury Gilbert E. (Grafton OH) Patel Nathalal C. (Elyria OH) Lockard Walter G. (Elyria OH) Wiatrak Thomas R. (Brunswick OH) Curran Neal J. (Fairview Park OH). Adjustable rear wheel mounting assembly for wheelchairs. USP1989024805925.
  3. Tague George E. (2900 Valley View Rd. Sioux Falls SD 57106). Anti-tip device for wheelchair. USP1993015181733.
  4. Trougouboff, Emile. Apparatus for handling heavy loads such as a trolley or a rolling chair for the handicapped. USP1991085036929.
  5. Park Chul (1837 Green Place Ter. Rockville MD 20850). Carriage for traversing irregular surfaces. USP1993125269544.
  6. Egen David P. (17 E. 67th St. New York NY 10021). Carriage for traversing stairs. USP1984094473234.
  7. Misawa Rintaro (Tokyo JPX) Takahashi Kou (Tokorozawa JPX). Carrier for rescuing patients. USP1986044585241.
  8. Misawa Rintaro (Tokyo JPX) Takahashi Kou (Tokorozawa JPX). Carrier for rescuing patients. USP1987084688813.
  9. Medina, Henry. Collapsible chair. USP2003056561524.
  10. Shaffer Robert H. (316 Escuela - No. 10 Mountain View CA 94040). Collapsible utility cart. USP1977094047724.
  11. Webb Lucie O. (232 Brookdale Dr. Americus GA 31709). Collapsible walker. USP1992125172715.
  12. Light Richard D. (Canoga Park CA). Collapsible walker with a retractable seat. USP1997025605169.
  13. Medina Henry (4 Sleepy La. Melville NY 11747). Collapsible wheelchair. USP1994085338048.
  14. Baghdasarian Varouj G. (1103 S. Stelling Rd. Cupertino CA 95014). Convertible infant seat. USP1988114786064.
  15. Hudson ; III E. W. (Tempe AZ) Anderson Lewis B. (Glendale AZ). Detachable wheelchair headrest. USP1991024989836.
  16. Bihler Franz (Augsburg DEX) Abele Anton (Augsburg DEX). Easy-adjust stair climber for wheelchair. USP1986014566706.
  17. Barriere Alain (30 ; rue Buffon 94210 La Varenne FRX). Foldable luggage carrying device. USP1981094290625.
  18. Mauch Floyd (8245 Kirkwood Drive Los Angeles CA 90046). Hand truck. USP1977074033595.
  19. Huang Mien-Cheng (Tainan TWX). Handle height adjuster for baby carriage. USP1993025184835.
  20. Carwin Gene F. (15132 County Rd. 19 Fort Morgan CO 80701). Headrest system for wheelchairs. USP1991125074574.
  21. Kielinski Thomas P.. Lifting and moving apparatus. USP2000056059512.
  22. Mintz Daniel (70 Cambridge Pl. Brooklyn NY 11238). Load carrier frame. USP1986024570954.
  23. Patel Nathalal G. (Elyria OH) Tuckowski Thomas J. (Berea OH) Herrmann Raymond J. (Westlake OH). Quick release handle. USP1989054834413.
  24. Rubinstein Stanley (Sepulveda CA) Robuck Terry D. (Simi Valley CA). Quick release wheelchair attachment bracket. USP1992075127709.
  25. Axelson Peter (Santa Cruz CA) Heinrich Michael (Santa Cruz CA) Lasko-Harvill Ann (Palo Alto CA) Silverman Michael W. (Highland Park IL). Seating system. USP1992045102195.
  26. Saethre ; Magnus ; Spector ; George. Shopping cart capable for use on stairs. USP1978124130291.
  27. Quigg Robert T. (118 Hickory Dr. Hatfield PA 19440). Stair climbing apparatus for collapsible wheelchair. USP1992105158309.
  28. Bihler, Franz; Abele, Anton. Stair-climbing apparatus for wheelchair. USP1985124556229.
  29. Lehner Max (Prambachkirchen ATX). Stair-climbing wheelchair carrier with crawlers. USP1990024898256.
  30. Heberle Heinz (Friedberg-West DEX). Stairway-type passenger lift. USP1979124179012.
  31. Feliz Jack M. (2110 Southridge Dr. Palm Springs CA 92262). Step-climbing wheel chair. USP1980094222449.
  32. Garven ; Jr. Douglas M. ; Chu Kevan L.. Suspension wheelchair and wheelchair frame. USP1998035727802.
  33. Bowie ; Jr. William R. (Baltimore MD) Sampson George B. (Baltimore MD). Transport device for invalids. USP1979014136888.
  34. Winsor Malcolm C. (Pond Road Mont Vernon NH 03057). Wheelchair. USP1977084044850.
  35. Featon Robert J. (East Keilor AUX) Fowler James W. (Springvale AUX) Miles Barry J. (East Keilor AUX). Wheelchair and occupant restraints. USP1990104966392.
  36. Robertson A. Scott (Pasadena CA) Geiger Richard (Santa Cruz CA). Wheelchair and wheelchair frame. USP1993125267745.
  37. Rembos Steven N. (790 S. Park Rd. Hollywood FL 33021). Wheelchair apparatus. USP1990104962941.
  38. Spear Robert W. (3419 Holiday Ave. ; NE. Albuquerque NM 87111). Wheelchair exercise and support bar apparatus and method. USP1997125697628.
  39. Littlejohn Douglas J. (Sunnyvale CA) Hessler John H. (Sunnyvale CA) Watkins Baxter R. (Foster City CA). Wheelchair stair climbing control system. USP1992065123495.
  40. Peek Gregory A. (8955 Ridgeline Blvd. Highlands Ranch CO 80126). Wheelchair with anti-tip assembly. USP1992085137295.
  41. Rodaway Keith Samuel (Santa Monica CA). Wheelchair with removable back. USP1976113990745.
  42. Samuel Michael (Flat J ; Queens Drive ; Finsbury Park London GBX N42HW). Wheeled vehicle. USP1987094691930.