Portable ramp

Details Portable ramp Portable ramp

1993-11-04

1997-03-11

Bennett, Henry A.

Bridges

Gangway, ramp, or dock leveler

14 711, 404 21, 414537, 238 10R, E01D 100

Patent

active

056089376

ABSTRACT:
A portable ramp for providing a bridge between a ground level surface and a raised surface. The ramp includes a support plate having a substantially horizontal first portion adapted to rest along an edge of the raised surface. A second portion of the plate extends vertically downward from the first portion and a third portion extends generally outwardly from the second portion in a direction generally toward the ground level surface. The third portion of the plate member supports one end of an angled beam which extends at a generally predetermined angle from the plate to the ground level surface. The opposite end of the beam is supported with respect to the ground level surface by a resilient foot member which provides stability. A traction plate having upwardly projecting portions is attached to a top surface of the beam intermediate the support plate and foot member in order to increase friction and provide traction along the inclined beam.

REFERENCES:
patent: 1568303 (1926-01-01), Webster
patent: 2278554 (1942-04-01), Morton
patent: 2594425 (1952-04-01), Greenberg
patent: 2992696 (1961-07-01), Jedinak
patent: 3487489 (1970-01-01), Kuhns
patent: 3962747 (1976-06-01), Soffage
patent: 3984891 (1976-10-01), Weinmann
patent: 4528711 (1985-07-01), Packer
patent: 4727612 (1988-03-01), Smith
patent: 4833999 (1989-05-01), Rhoades
patent: 4853999 (1989-08-01), Smith

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