Collapseable utility ramp

Details Collapseable utility ramp Collapseable utility ramp

2008-05-07

2010-02-02

Addie, Raymond W (Department: 3671)

Bridges

Gangway, ramp, or dock leveler

C414S537000

Reexamination Certificate

active

07653957

ABSTRACT:
A utility ramp for loading and unloading lawn mowers and other equipment into a pickup truck or transport vehicle and then collapsed for easy storage. The ramp is a comprehensive unit comprising two ramp channels held parallel by a sliding cross brace design. The first end of the cross brace is pivotally attached the ramp channel. The second end of the cross brace is secured to a rotating sliding fitting that engages a slot in the ramp channel. The sliding cross brace design constrains the ramp sections in a secure and parallel fashion in both the expanded and collapsed positions. This design allows one person to easily and quickly expand or collapse the utility ramp with one simple motion.

REFERENCES:
patent: 854329 (1907-05-01), Charron
patent: 3472183 (1969-10-01), Goodman
patent: 3785462 (1974-01-01), Coed et al.
patent: 4585212 (1986-04-01), Yanker
patent: 5319818 (1994-06-01), Baranowski
patent: 5503368 (1996-04-01), Torres
patent: 5634228 (1997-06-01), Johnston
patent: 7069611 (2006-07-01), Larson
patent: 7299517 (2007-11-01), Adinolfe

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