Adjustable dock apparatus

Details Adjustable dock apparatus Adjustable dock apparatus

1995-10-26

1997-07-08

Lisehora, James A.

Bridges

Gangway, ramp, or dock leveler

Attached

E01D 100

Patent

active

056448120

ABSTRACT:
This adjustable dock apparatus uses a planar body pivotally attached to the edge of a dock and horizontal movement of a planar extension slideably attached to and coplanar with the body to close the space between a truck trailer and the dock. A first set of power driven actuators rotate the body between vertical and horizontal, and a second set of actuators moves the extension. Inductive spaced apart sensors on the extension outer edge detects the trailer and stops the bracketing second actuators when a predetermined distance from the trailer to space the extension and trailer and match the angle between them.

REFERENCES:
patent: 2639450 (1953-05-01), Ramer
patent: 2689965 (1954-09-01), Fenton
patent: 3179968 (1965-04-01), Lambert
patent: 4551877 (1985-11-01), Alten
patent: 4727613 (1988-03-01), Alten
patent: 4862547 (1989-09-01), Alten
patent: 5068938 (1991-12-01), Roscoe
patent: 5257431 (1993-11-01), Larson et al.
patent: 5481773 (1996-01-01), Alten

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