Closure fasteners – Clamps – Portable
Patent
1977-08-15
1978-09-12
Silverstrim, John P.
Closure fasteners
Clamps
Portable
214660, 214DIG13, 292166, B60P 144
Patent
active
041131215
ABSTRACT:
A pin release device for releasing a wheelchair lift platform attached to a lift frame mounted in an opening in a vehicle. The lift platform pivotally mounted to the bottom of the frame and stored in a vertical position in the opening. When for one reason or another, the power used in raising and lowering the lift fails, the device may be used to lower the lift platform manually to a horizontal position so that a wheelchair may be loaded thereon and removed from the vehicle.
REFERENCES:
patent: 1536523 (1925-05-01), Peterson
patent: 3146021 (1964-08-01), Ericson
patent: 3613917 (1971-10-01), Fowler
patent: 3651965 (1972-03-01), Simonelli
patent: 4056203 (1977-11-01), Meldahl
Collins Donald L.
Downing Harold A.
Collins Industries, Inc.
Crabtree Edwin H.
Silverstrim John P.
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