Land vehicles – Step or abutment ascending type vehicle – With endless track
Patent
1993-05-10
1994-08-16
Focarino, Margaret A.
Land vehicles
Step or abutment ascending type vehicle
With endless track
2802501, 280DIG10, 297DIG4, B62B 502
Patent
active
053380487
ABSTRACT:
A collapsible carriage or wheelchair, generally comprising a main frame, a seating assembly, a pair of wheel subassemblies, and a pair of rail assemblies. Preferably, the wheelchair further includes a back support assembly, an upper frame section, a front wheel, a front support assembly, and a harness system. The elements and components of the wheelchair are connected together so that the wheelchair can be quickly and easily expanded from a collapsed form to an open form. Generally, the seating assembly is provided to form a seat for a person, the wheel subassemblies are used to support the wheelchair for movement over floors and other flat surfaces, and the rail assemblies are provided to support the wheelchair for movement down stairs. The back support assembly helps to hold the wheelchair stationary while a person is being seated in the chair, the upper frame section provides direct support for the head and upper back of a person seated in the chair, and the harness system is used to hold a person in the wheelchair.
REFERENCES:
patent: 1341470 (1920-05-01), Kinnaird
patent: 1949282 (1934-02-01), Murray
patent: 2072222 (1937-03-01), Schuttkus
patent: 2214311 (1940-09-01), Stevens
patent: 2680026 (1954-06-01), Cushman
patent: 2715533 (1955-08-01), Strausberg
patent: 2883731 (1959-04-01), Wells
patent: 3106980 (1963-10-01), Rogneby
patent: 3137511 (1964-06-01), Weil et al.
patent: 3178193 (1965-04-01), Grogan
patent: 3231290 (1966-01-01), Weyer
patent: 3567236 (1968-11-01), Powers
patent: 3580591 (1971-05-01), Coffey et al.
patent: 3679257 (1972-07-01), Jacuzzi et al.
patent: 3709556 (1973-01-01), Allard et al.
patent: 3990745 (1976-11-01), Rodaway
patent: 4033595 (1977-07-01), Mauch
patent: 4044850 (1977-08-01), Winsor
patent: 4130291 (1978-12-01), Saethre et al.
patent: 4136888 (1979-01-01), Bowie, Jr. et al.
patent: 4179012 (1979-12-01), Heberle
patent: 4222449 (1980-09-01), Feliz
patent: 4431076 (1984-02-01), Simpson
patent: 4473234 (1984-09-01), Egen
patent: 4556229 (1985-12-01), Bihler et al.
patent: 4585241 (1986-04-01), Misawa et al.
patent: 4688813 (1987-08-01), Misawa et al.
patent: 4805925 (1989-02-01), Haury et al.
patent: 4834413 (1989-05-01), Patel et al.
patent: 4898256 (1990-02-01), Lehner
patent: 4962941 (1990-10-01), Rembos
patent: 4966392 (1990-10-01), Featon et al.
patent: 4989836 (1991-02-01), Hudson, III et al
patent: 5036929 (1991-08-01), Trougouboff
patent: 5074574 (1991-12-01), Carwin
patent: 5102195 (1992-04-01), Axelson et al.
patent: 5123495 (1992-06-01), Littlejohn et al.
patent: 5127709 (1992-07-01), Rubinstein et al.
patent: 5137295 (1992-08-01), Peek
patent: 5158309 (1992-10-01), Quigg
patent: 5181733 (1993-01-01), Tague
Product brochure titled "Garaventa Stair-Lift" (1991) from Garaventa (Canada) Ltd., Surrey British Columbia.
Product brochure titled "Garaventa Stair-Porter" (1992) from Garaventa (Canada) Ltd., Surrey, British Columbia.
Product brochure titled "Garaventa Evacu-Trac" (1992) from Garaventa (Canada) Ltd., Surrey, British Columbia.
Focarino Margaret A.
Hurley Kevin
LandOfFree
Collapsible wheelchair does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Collapsible wheelchair, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Collapsible wheelchair will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-946650