Bridges – Gangway – ramp – or dock leveler
Reexamination Certificate
2011-04-26
2011-04-26
Addie, Raymond W (Department: 3671)
Bridges
Gangway, ramp, or dock leveler
Reexamination Certificate
active
07930788
ABSTRACT:
A reduced height combination ramp and load leveler includes at least two lengthwise support members, a plurality of cross members and plurality of cross treads. A retention tube is secured to each end of the at least two lengthwise support members. The at least two lengthwise support members and the plurality of cross members are preferably fabricated from an aluminum alloy having a tensile strength of at least 50,000 to reduce a height of the combination ramp and load leveler. Two stake receivers allow a single ramp to be used as a load leveler. Each stake receiver is sized to removably receive an adjustable stake. A ramp stand includes a support base and an adjustable tube receiver that is vertically positionable relative to the support base. The adjustable tube receiver retains the retention tubes.
REFERENCES:
patent: 3976209 (1976-08-01), Burton
patent: 3984891 (1976-10-01), Weinmann
patent: 4874284 (1989-10-01), New, Jr.
patent: 5035565 (1991-07-01), White
patent: 5062174 (1991-11-01), DaSalvo
patent: 5494393 (1996-02-01), Schrunk
patent: 6119634 (2000-09-01), Myrick
patent: 6244608 (2001-06-01), Hess
patent: 6389629 (2002-05-01), Schouest
patent: 6484343 (2002-11-01), Phillips
patent: 6575516 (2003-06-01), Webber
patent: 6887028 (2005-05-01), Kirla, Jr.
patent: 6928959 (2005-08-01), Trauernicht et al.
patent: 7179042 (2007-02-01), Hartmann et al.
patent: 2006/0150346 (2006-07-01), Myrick et al.
patent: 2007/0199166 (2007-08-01), Peschmann
patent: 2008/0263790 (2008-10-01), Hoffman
patent: 2088821 (1982-06-01), None
Addie Raymond W
Ersler Donald J.
LandOfFree
Reduced height combination ramp and load leveler does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Reduced height combination ramp and load leveler, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Reduced height combination ramp and load leveler will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2662469