Automatic wheelchair brake system and wheelchair including same

Details Automatic wheelchair brake system and wheelchair including same Automatic wheelchair brake system and wheelchair including same

2003-09-03

2008-10-14

Morris, Lesley D. (Department: 3611)

Land vehicles

Wheeled

Occupant propelled type

C188S00200R, C188S109000, C303S019000

Reexamination Certificate

active

07434824

ABSTRACT:
An automatically engageable and releasable brake apparatus adaptable to be attached to a wheelchair is provided, including a connection mechanism adapted to be positioned on a rear frame portion of the wheelchair frame, a seat actuation member adapted to be positioned on the wheelchair seat, a brake actuating member coupled to the connection mechanism and in fluid communication with the seat actuation member defining a closed fluid system therewith, and a brake member coupled to the brake actuating member and adapted to contact a ground surface on which the wheelchair is located. Occupational ingress into the wheelchair causes fluid to flow from the seat actuation member to the brake actuating member, which causes the brake member to move from a first position in substantial contact with the ground surface on which the wheelchair is located to a second position spaced a distance above the ground surface.

REFERENCES:
patent: 1562795 (1925-11-01), Sauveur
patent: 2426451 (1947-08-01), Hammack
patent: 2753919 (1956-07-01), Sill
patent: 2886139 (1959-05-01), Wilson
patent: 3211250 (1965-10-01), Wood
patent: 3280933 (1966-10-01), Jones
patent: 3288250 (1966-11-01), Oja et al.
patent: 3360305 (1967-12-01), Ryskamp
patent: 3529700 (1970-09-01), Marshall
patent: 3653724 (1972-04-01), Smith
patent: 3716116 (1973-02-01), Von Seggern
patent: 3903513 (1975-09-01), Green et al.
patent: 4320818 (1982-03-01), Knoche
patent: 4350227 (1982-09-01), Knoche
patent: 4384732 (1983-05-01), Wierwille
patent: 4570756 (1986-02-01), Minnebraker et al.
patent: 4614246 (1986-09-01), Masse et al.
patent: 4623043 (1986-11-01), Babilas
patent: 4773494 (1988-09-01), Anderson
patent: 4852697 (1989-08-01), Kulik
patent: 5513867 (1996-05-01), Bloswick et al.
patent: 6092824 (2000-07-01), Ritchie et al.
patent: 6279936 (2001-08-01), Ritchie et al.
patent: 6347688 (2002-02-01), Hall et al.
patent: 6371503 (2002-04-01), Ritchie et al.
patent: 6454285 (2002-09-01), Koenig
patent: 6688437 (2004-02-01), Usherovich
patent: 6739610 (2004-05-01), Connors et al.
patent: 6863293 (2005-03-01), Kimura et al.
patent: 2002/0149168 (2002-10-01), Brown
patent: 2003/0098568 (2003-05-01), Keppler
patent: 2005/0087954 (2005-04-01), Wakita et al.
patent: 948566 (1974-06-01), None
patent: 90/14064 (1990-11-01), None

Affiliated with

Also associated with

Rating

Automatic wheelchair brake system and wheelchair including same does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Automatic wheelchair brake system and wheelchair including same, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Automatic wheelchair brake system and wheelchair including same will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4016810