Spring-biased folding truck ramp

Details Spring-biased folding truck ramp Spring-biased folding truck ramp

2007-04-23

2010-11-16

Fox, Charles A (Department: 3652)

Material or article handling

Self-loading or unloading vehicles

Conveyor

C296S061000

Reexamination Certificate

active

07832975

ABSTRACT:
A ramp system for a delivery vehicle for bridging a cargo bed of the vehicle and a ground surface. A series of ramps of the system are easily moved between a use orientation and a stowed orientation with the assistance of torsion springs of the system. The ramps are moveable for placement at various locations across the width of the vehicle and the selected location for use is locked so as to prevent widthwise movement of the ramps during use. No cargo area is used for stowing the ramps when not in use.

REFERENCES:
patent: 3352440 (1967-11-01), Wilson
patent: 3516560 (1970-06-01), Brighton
patent: 3580404 (1971-05-01), Moser
patent: 3834565 (1974-09-01), Goodman, Jr. et al.
patent: 4084713 (1978-04-01), Rohrs et al.
patent: 4088235 (1978-05-01), Thacker
patent: 4979867 (1990-12-01), Best
patent: 5096362 (1992-03-01), Best
patent: 5145310 (1992-09-01), Calzone
patent: 5287579 (1994-02-01), Estevez, Jr
patent: 5540474 (1996-07-01), Holland
patent: 5769593 (1998-06-01), Buffaloe
patent: 5907276 (1999-05-01), Lance
patent: 5988725 (1999-11-01), Cole
patent: 5993135 (1999-11-01), Wolgamood
patent: 6386819 (2002-05-01), Schultz
patent: 6447040 (2002-09-01), Young, Sr.
patent: 6536064 (2003-03-01), Swink et al.
patent: 6722721 (2004-04-01), Sherrer et al.
patent: 6764123 (2004-07-01), Bilyard
patent: 6913305 (2005-07-01), Kern et al.
patent: 6976723 (2005-12-01), Libby
patent: 7062813 (2006-06-01), Hoofard et al.
patent: 7082637 (2006-08-01), Griffin
patent: 7186069 (2007-03-01), Ehler
patent: 2005/0061227 (2005-03-01), Ostreng et al.

Affiliated with

Also associated with

Rating

Spring-biased folding truck ramp does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Spring-biased folding truck ramp, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Spring-biased folding truck ramp will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4224311