Seal carried by a vertically storing dock leveler

Details Seal carried by a vertically storing dock leveler Seal carried by a vertically storing dock leveler

1989-04-03

1991-03-26

Britts, Ramon S.

Bridges

Gangway, ramp, or dock leveler

Attached

14 715, E01D 100

Patent

active

050017993

ABSTRACT:
A seal for a vertically storing dock leveler employs a foam pad connected to the underside of the deck. As the leveller is lowered, the pad contacts the shelf on to which the leveller is mounted and deflects inward and compresses to seal the space between the underside of the leveller and the shelf. The pad is a tapered foam with a fabric covering.

REFERENCES:
patent: 1888299 (1932-11-01), Tremblay et al.
patent: 3137017 (1964-06-01), Pfleger et al.
patent: 3714745 (1973-02-01), O'Neal
patent: 4178717 (1979-12-01), Sakauye
patent: 4209869 (1980-07-01), Trine et al.
patent: 4293969 (1981-10-01), Frommelt
patent: 4422199 (1983-12-01), Frommelt
patent: 4557008 (1985-12-01), Jurden
patent: 4679364 (1987-07-01), Fettig et al.
patent: 4682382 (1987-07-01), Bennet
patent: 4776052 (1988-10-01), Delgado et al.

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