Dockboard assembly

Details Dockboard assembly Dockboard assembly

1982-09-07

1985-07-30

Novosad, Stephen J.

Bridges

Gangway, ramp, or dock leveler

Attached

E01D 100

Patent

active

045312486

ABSTRACT:
A dockboard assembly is provided having a releasable holding means for restraining the upward pivoting of a ramp means, the latter being urged to pivot upwardly by a biasing means. The holding means is adapted to be adjusted to a release position either by a manually actuated first release means or by a second release means which is actuated automatically only upon the ramp means having assumed a predetermined position of pivotal adjustment and an external upwardly pivoting force exceeding a predetermined magnitude being exerted on the ramp means.

REFERENCES:
patent: 3579696 (1971-05-01), Hecker et al.
patent: 3699601 (1972-10-01), Hecker et al.
patent: 3967337 (1976-07-01), Artzberger
patent: 4068338 (1978-01-01), Artzberger

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