Hydraulic securing device

Details Hydraulic securing device Hydraulic securing device

1977-10-11

1979-03-27

Swann, III, Glen R.

Communications: electrical

Condition responsive indicating system

Specific condition

340626, 340687, 414401, B60D 700, G08B 2100

Patent

active

041468880

ABSTRACT:
A hydraulically actuated device secures the back end of a truck against a surface of a loading dock during loading and unloading of the truck. The device includes a self-aligning hydraulic cylinder which is adjustably mounted on the loading dock, and a piston mounted within the cylinder and having an exposed portion to which an attaching means is connected. The attaching means is adapted to be releasably connected to the truck. Control means is provided for directing hydraulic pressure to the cylinder so as to effect movement of the piston in one direction whereby the attaching means exerts a pulling force on the truck to cause the latter to be secured against the loading dock surface, or in a second direction whereby the attaching means assumes a position wherein it may be disconnected from the truck. Signal means, responsive to hydraulic pressure, is provided to indicate when hydraulic pressure is being, or not being, exerted on the piston.

REFERENCES:
patent: 3918037 (1975-11-01), Hall
patent: 4010571 (1977-03-01), McGuire et al.
patent: 4016990 (1977-04-01), Hodkin et al.

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