Automatic braking wheelchair

Details Automatic braking wheelchair Automatic braking wheelchair

1991-12-16

1993-04-20

Butler, Douglas C.

Brakes

Vehicle

188 31, 188 69, 188109, 188167, B60T 100

Patent

active

052034330

ABSTRACT:
An automatic braking wheelchair having an automatic braking assembly which automatically locks one or both wheels of a wheelchair when the patient attempts to rise. The automatic braking assembly includes a movable seat, a locking bar connected to the movable seat having a cavity therein for receipt of the axle, and a locking member rigidly connected to the hub of the wheel which is received in the cavity of the locking bar to selectively lock the hub and wheel in a stationary position.

REFERENCES:
patent: 440032 (1890-11-01), Herrington
patent: 620221 (1899-02-01), Breeze
patent: 1045632 (1912-11-01), Suppes
patent: 1090011 (1914-03-01), Ballinger
patent: 1206419 (1916-11-01), Dahms
patent: 1495819 (1924-05-01), Thomas
patent: 1646971 (1927-10-01), Mendonca
patent: 1844818 (1932-02-01), Gattie
patent: 2053852 (1936-09-01), Tracy
patent: 2259924 (1941-10-01), Connolly
patent: 3174768 (1965-03-01), Sanders et al.
patent: 3302757 (1967-02-01), Eagleson, Jr.
patent: 3356185 (1967-12-01), Isaacks
patent: 3529700 (1970-09-01), Marshall
patent: 4320818 (1982-03-01), Knoche
patent: 4623043 (1986-11-01), Babilas

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