Ramp systems

Details Ramp systems Ramp systems

1995-09-29

1998-04-21

Lisehora, James

Bridges

Gangway, ramp, or dock leveler

14 695, 14 73, 254 88, 182182, E01D 1900

Patent

active

057405751

ABSTRACT:
A ramp system made up of any selected member ramp sections connected together, end to end, by stands. The ramp sections have depending flanges at each end that engage retaining rails in the stands. The height of the rails in the stands can be varied to accommodate the terrain spanned by the system.

REFERENCES:
patent: 430141 (1890-06-01), Myers
patent: 1715260 (1929-05-01), Weber
patent: 3355037 (1967-11-01), Dodd
patent: 3666045 (1972-05-01), Olsen
patent: 4120485 (1978-10-01), McConnell
patent: 4240522 (1980-12-01), Spear et al.
patent: 4937989 (1990-07-01), Miyares et al.
patent: 5001798 (1991-03-01), Hamilton
patent: 5287579 (1994-02-01), Estevez, Jr.
patent: 5325558 (1994-07-01), Labreche

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