Dock leveler

Bridges – Gangway – ramp – or dock leveler – Attached

Reexamination Certificate

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Reexamination Certificate

active

07013519

ABSTRACT:
The present invention pertains to a mechanically actuated dock leveler with a mounting frame secured in a pit of a loading dock, and a deck assembly with a deck and extendable lip. A deck lift assembly biases the deck to move from a parked position to a raised position to activate a lip extension assembly. As the deck is “walked down”, the lip is extended and the lip extension assembly is deactivated in a controlled manner so that the deck and lip reach an engaged position against the trailer and are kept in place by a hold down mechanism. The deck assembly has a float housing with a slot for releasably engaging the lift assembly to achieve a range of float positions where the deck and lip rest on and float with the trailer as it is loaded and unloaded. The deck assembly has a durable combined lip lug and header plate hinge construction.

REFERENCES:
patent: 3685077 (1972-08-01), Wiener et al.
patent: 3835497 (1974-09-01), Smith
patent: 3882563 (1975-05-01), Smith et al.
patent: 3967337 (1976-07-01), Artzberger
patent: 4847935 (1989-07-01), Alexander et al.
patent: 4928340 (1990-05-01), Alexander
patent: 4937906 (1990-07-01), Alexander
patent: 4944062 (1990-07-01), Walker
patent: 4974276 (1990-12-01), Alexander
patent: 4977635 (1990-12-01), Alexander
patent: 4979253 (1990-12-01), Alexander
patent: 5001799 (1991-03-01), Alexander et al.
patent: 5088143 (1992-02-01), Alexander
patent: 5097557 (1992-03-01), Salman et al.
patent: 5111546 (1992-05-01), Hahn et al.
patent: 5117526 (1992-06-01), Alexander
patent: 5303443 (1994-04-01), Alexander
patent: 5323503 (1994-06-01), Springer
patent: 5396676 (1995-03-01), Alexander et al.
patent: 5440772 (1995-08-01), Springer et al.
patent: 5553343 (1996-09-01), Alexander
patent: 5813072 (1998-09-01), Alexander
patent: 5826291 (1998-10-01), Alexander
patent: 5832554 (1998-11-01), Alexander
patent: 6125491 (2000-10-01), Alexander
patent: 6487741 (2002-12-01), Alexander
patent: 6634049 (2003-10-01), Hahn et al.
patent: 6769149 (2004-08-01), Alexander
patent: 6842930 (2005-01-01), Massey et al.

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