Material or article handling – Self-loading or unloading vehicles – With load-receiving portion – or significant section thereof,...
Reexamination Certificate
2005-03-08
2005-03-08
Lillis, Eileen D. (Department: 3652)
Material or article handling
Self-loading or unloading vehicles
With load-receiving portion, or significant section thereof,...
C414S812000
Reexamination Certificate
active
06863490
ABSTRACT:
A trailer for transporting a contemporary boat hoist having a four post rectangular structure with at least a front transversely extended front beam and a pair of side beams, the trailer including a frame having side members mounted on a wheel and axle unit, with a pair of arms pivotally mounted one on each side member of the frame and connected to the unit, with further a front mounted winch cable connected to the arms whereby operation of the winch results in a raising or lowering of the frame, with a second front mounted winch engageable with a front beam to raise the hoist; and an extension support unit mounted on the rear of the trailer and engageable with the hoist side beams to effect vertical movement of the hoist upon vertical movement of the trailer frame.
REFERENCES:
patent: 2910197 (1959-10-01), Beckner
patent: 2977011 (1961-03-01), Okerlund
patent: 4223856 (1980-09-01), DiVincenzo
patent: 4401335 (1983-08-01), Godbersen
patent: 4488612 (1984-12-01), Patterson
patent: 4685855 (1987-08-01), Celli
patent: 4836569 (1989-06-01), Godbersen
patent: 5076603 (1991-12-01), Godbersen
patent: 5308213 (1994-05-01), Gilbertson
patent: 5649802 (1997-07-01), Babcock
patent: 5975828 (1999-11-01), Weldy
Fox Charles A.
Sturm & Fix LLP
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