Material or article handling – Self-loading or unloading vehicles – Conveyor
Reexamination Certificate
2006-01-17
2006-01-17
Underwood, Donald W. (Department: 3652)
Material or article handling
Self-loading or unloading vehicles
Conveyor
C296S061000
Reexamination Certificate
active
06986633
ABSTRACT:
A folding cargo loading/unloading ramp, particularly adapted for motor trucks, includes first and second ramp sections and an intermediate support leg assembly which is pivotally connected to the first and second ramp sections at a common hinge point. The support leg assembly includes a latch for automatically latching the support leg assembly in a working position when it is rotated from a folded position to its working position, the latch being manually actuatable to unlock the support leg assembly to rotate back to its folded or non-working position. Both ramp sections and the support leg assembly include manipulating handles to facilitate movement of the ramp between a stored position and a working position.
REFERENCES:
patent: 963918 (1910-07-01), Miller
patent: 2523723 (1950-09-01), Santee et al.
patent: 2611466 (1952-09-01), Biggert et al.
patent: 2670484 (1954-03-01), Bintliff et al.
patent: 2779958 (1957-02-01), Hodges et al.
patent: 4075729 (1978-02-01), Conner
patent: 4084713 (1978-04-01), Rohrs et al.
patent: 4088235 (1978-05-01), Thacker
patent: 4606090 (1986-08-01), Beard
patent: 4624619 (1986-11-01), Uher
patent: 4761847 (1988-08-01), Savage et al.
patent: 4950124 (1990-08-01), Burghart et al.
patent: 5085555 (1992-02-01), Vartanian
patent: 5257894 (1993-11-01), Grant
patent: 5325558 (1994-07-01), Labreche
patent: 5440773 (1995-08-01), Lentini
patent: 5815870 (1998-10-01), Deutch et al.
patent: D401731 (1998-11-01), Jeruss
patent: 5832555 (1998-11-01), Saucier et al.
patent: 6009587 (2000-01-01), Beeman
patent: 6536064 (2003-03-01), Swink et al.
ROM Corporation, Roadwarrior Sidekick Folding Ramp, Internet webpage and photographs, 2 sheets, May 1, 2002.
Brim Larry Walter
Kellogg Charles Frederick
Gardere Wynne & Sewell LLP
Overhead Door Corporation
Underwood Donald W.
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