Land vehicles: bodies and tops – Bodies – End gates
Reexamination Certificate
1999-04-30
2001-10-02
Dayoan, D. Glenn (Department: 3612)
Land vehicles: bodies and tops
Bodies
End gates
C296S026100, C296S026110, C414S462000, C414S537000, C224S521000
Reexamination Certificate
active
06296290
ABSTRACT:
BACKGROUND OF THE INVENTION
This invention relates to a portable loading ramp for a pickup truck which can be easily and quickly mounted to a hitch on a pickup truck for loading small vehicles.
Pickup trucks have boxes with the floors being substantially elevated above the ground surface, and in order to load heavy equipment such as snowmobiles and ATVs onto the truck box, the user generally would have to back the pickup truck up to a mound or an elevated piece of land such that the height of the mound or elevated piece of land is relatively the same as the height of the floor of the truck box so that the user can drive the vehicle onto the truck box. On the other hand, the user would carry a couple of planks of wood along in the truck box and would slide the planks out of the truck box and create a ramp from the ground up to the truck box. There have been other devices used to create ramps for pickup trucks.
One known prior art is a RAMP FOR LOADING SMALL MOTORIZED VEHICLES ON PICKUP TRUCKS, U.S. Pat. No. 4,700,421, issued on Oct. 20, 1987 and invented by Tommy C. Gladney et al and comprising a flexible support sheet adapted to extend from the truck box and the ground, means to secure the support sheet and the truck box the ground, and an elongate tensioning member for supporting the support sheet.
Another known prior art is a RAMP AND ENDGATE FOR PICKUP TRUCK, U.S. Pat. No. 5,342,105, issued on Aug. 30, 1994 and invented by Mark R. Miles and comprising a front and rear sections pivotally connected together and supported upon a short transverse support frame.
Another known prior art is a PICKUP TRUCK LOADING RAMP, U.S. Pat. No. 4,795,304, issued on Jan. 3, 1989 and invented by James D. Dudley and comprising a pair of hingedly connected ramp panels and a plurality of legs.
Another known prior art is a PICKUP TRUCK BED EXTENDER, RAMP AND TAILGATE, U.S. Pat. No. 5,816,638, issued on Oct. 6, 1998 and invented by William Bryan Pool, III and comprising two side frame members, a gate member, a latching means, and a pivoting control means.
Another known prior art is a COMBINATION PICKUP TRUCK BED EXTENDER-FOLDABLE RAMP, U.S. Pat. No. 5,752,800, issued on May 19, 1998 and invented by Darryl Brincks et al and comprising a mounting plate, an extension plate mounted to the mounting plate, collapsible sections, a plurality of side bed extenders, and a plurality of latches.
Another known prior art is an EXTENDABLE SUPPORT SYSTEM, U.S. Pat. No. 5,803,523, issued on Sep. 8, 1998 and invented by Jeffrey L. Clark et al and comprising a plurality of support members, a plurality of stop tabs, and a plurality of side rails.
Another known prior art is a RETRACTABLE RAMP ASSEMBLY FOR PICK-UP TRUCK, U.S. Pat. No. 4,624,619, issued on Nov. 25, 1986 and invented by Michael L. Uher and comprising a ramp means having a plurality of ramp sections, hinge means, limit means, pin locking means, and stop means.
None of the prior describes nor suggests a portable loading ramp of the present invention.
SUMMARY OF THE INVENTION
The present invention relates to a portable loading ramp for a pickup truck which includes a hitch mount detachably mounted to a hitch receiver on a pickup truck, first and second ramp members which are hingedly attached to each other at one end of the hitch mount with the second ramp pivotally extending to the ground and the first ramp pivotally extending to the truck box, and a vehicle support assembly hingedly mounted to the second ramp for elevating a rear portion of the small vehicle above the floor of the truck box to allow the user to warm up the small vehicle prior to driving the small vehicle off the truck box and also for securing the small vehicle in the truck box.
One known objective of the present invention is to provide a portable loading ramp for a pickup truck which is small, easy to use and easy to store out of the way in the truck box.
Another known objective of the present invention is to provide a portable loading ramp for a pickup truck which allows the user to elevate the back end of the small vehicle above the floor of the truck box so that the user can allow the small vehicle to warm up prior to disembarking from the pickup truck.
Yet, another known objective of the present invention is to provide a portable loading ramp for a pickup truck which allows the user to unmovably secure the small vehicle on the truck box.
Further objectives and advantages of the present invention will become apparent as the description proceeds and when taken in conjunction with the accompanying drawings wherein:
REFERENCES:
patent: 3339968 (1967-09-01), Hall
patent: 3352440 (1967-11-01), Wlison
patent: 4647270 (1987-03-01), Maloney
patent: 4700421 (1987-10-01), Gladney et al.
patent: 5156432 (1992-10-01), McCleary
patent: 5342105 (1994-08-01), Miles
patent: 5649732 (1997-07-01), Jordan et al.
patent: 5752636 (1998-05-01), Manley
patent: 5950890 (1999-09-01), Darby
Dayoan D. Glenn
Gutman Hilary
Lingbeck David A.
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