Brakes – Vehicle – On ground
Patent
1998-10-30
1999-06-22
Schwartz, Chris
Brakes
Vehicle
On ground
188 4R, B60T 300
Patent
active
059133899
ABSTRACT:
A wheel chock contains a first wheel-restraining member, a frame with a gear rack attached to the first wheel-restraining member, a second wheel-restraining member, a gear assembly attached to the second wheel-restraining member, and an elongated handle member. The gear assembly has a gear housing with an opening through which the frame passes and also has a releasably ratcheting pinion gear that engages the gear rack. A user holding the handle member from a standing position can restrain a wheel by moving the wheel chock into position on the wheel and then reducing the distance between the first and second wheel-restraining members so they touch the wheel, and can release the wheel by increasing the distance between the first and second wheel-restraining members and then removing the wheel chock.
REFERENCES:
patent: 2461248 (1949-02-01), Wright
patent: 2522328 (1950-09-01), Wiswell et al.
patent: 2771162 (1956-11-01), Marsh
patent: 3120292 (1964-02-01), Rambat
patent: 3811536 (1974-05-01), Haynes
patent: 4649724 (1987-03-01), Raine
patent: 4711325 (1987-12-01), Mountz
patent: 4854790 (1989-08-01), Andre
patent: 5427210 (1995-06-01), Willaford
patent: 5490582 (1996-02-01), Trowbridge
patent: 5586849 (1996-12-01), Kissel et al.
Bateman Philip L.
Schwartz Chris
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