Material or article handling – Self-loading or unloading vehicles – Conveyor
Patent
1995-02-08
1996-11-05
Keenam, James W.
Material or article handling
Self-loading or unloading vehicles
Conveyor
414522, B65G 6702
Patent
active
055709893
ABSTRACT:
A truck ramp mountable to the upper surface of the cargo portion of a pickup truck that has a bottom hinged tailgate and at least one wheel well having a contour and which includes a fixed portion, a movable portion, an axle, a pair of rollers, a pair of tracks, and a stop. The fixed portion has an upper surface, a lower surface, a longitudinal axis center line, and a back end. The fixed portion is removably mountable to the upper surface of the cargo portion and forms a chamber therebetween. The movable portion is slidably mounted within the chamber and has a retracted position, an extended position, a distal end, an upper surface, and a proximal end that contains a tunnel. The axle has a pair of free ends and is rotatably mounted in the tunnel of the movable portion. Each of the pair of rollers are located at each of the pair of free ends of the axle. The pair of tracks are located between the lower surface of the fixed portion and the upper surface of the cargo portion of the pickup truck and rotatably receive the pair of rollers. The stop is located at the back end of the fixed portion.
REFERENCES:
patent: D355518 (1995-02-01), Belanger
patent: 3870170 (1975-03-01), Noble et al.
patent: 4624619 (1986-11-01), Uher
patent: 4685857 (1987-08-01), Goeser et al.
patent: 4900217 (1990-02-01), Nelson
patent: 4990049 (1991-02-01), Hargrove
patent: 5257894 (1993-11-01), Grant
patent: 5331701 (1994-07-01), Chase et al.
patent: 5393192 (1995-02-01), Hall et al.
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