Portable ramp

Details Portable ramp Portable ramp

1974-11-12

1976-10-12

Byers, Jr., Nile C.

Bridges

Gangway, ramp, or dock leveler

E01D 1512

Patent

active

039848914

ABSTRACT:
A portable ramp includes a span to the ends of which are secured feet, such securement being by means of pivotal connections that enable the feet to be pivoted so as to accommodate various differences in heights between two surfaces, from one to the other of which there is to be a movement such as of a wheeled vehicle.

REFERENCES:
patent: 2089380 (1937-08-01), Kammerer
patent: 3100556 (1963-08-01), DeRidder
patent: 3307719 (1967-03-01), Martin
patent: 3385182 (1968-05-01), Harvey
patent: 3424323 (1969-01-01), Barnaby
patent: 3516560 (1970-06-01), Brighton
patent: 3735440 (1973-05-01), Hetmanski
patent: 3742911 (1973-07-01), Lehe
patent: 3795333 (1974-03-01), Tebben

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