Trailer lifting foot extender

Details Trailer lifting foot extender Trailer lifting foot extender

1991-08-26

1993-02-16

Marmor, Charles A.

Handling: hand and hoist-line implements

Spacing hoist bar or frame

Load supporting units

294 6731, B66C 122

Patent

active

051865084

ABSTRACT:
An extender assembly is provided for the lifting foot of a mobile crane used to lift trailers and the like. The extender is comprised of left and right extender pads attached to and spaced apart along a frame such that when the frame is rotatably coupled to the lifting foot via a clevis joint, the extender pads are disposed adjacent each side of the food pad. The lifting foot is capable of being used with the extender pads in either the raised or lowered position depending on the access for foot pad engagement available on the trailer being lifted. The extender assembly is adapted to allow it to be maintained in the raised position once it is manually placed therein and to be automatically rotated into the lowered position by resting the lifting foot on the ground.

REFERENCES:
patent: 2623776 (1952-12-01), Breslav
patent: 2670985 (1954-03-01), King
patent: 3086661 (1963-04-01), De Stasi
patent: 3567266 (1971-03-01), Bridge
patent: 4355833 (1982-10-01), Dunbar
patent: 4747745 (1988-05-01), Pippes et al.

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