Utility vault cover seal

Details Utility vault cover seal Utility vault cover seal

1983-12-08

1986-02-04

Friedman, Carl D.

Static structures (e.g., buildings)

With entrance for persons or objects in horizontal or...

52 20, 49465, 404 25, E02D 2914

Patent

active

045676976

ABSTRACT:
In a rectangular utility vault cover a continuous flange on the underside of the cover presses against a sealing material contained in a channel mounted on the vault casing to form a non load bearing seal on the vault cavity. A raised ramp or cam located at each corner of the cover rides upon a raised track on the casing so that the projecting flange does not abrade the sealing material as the cover is slidably removed from the vault casing.

REFERENCES:
patent: 175725 (1876-04-01), Mecklenberg
patent: 1804787 (1931-05-01), Kullmer
patent: 1987502 (1935-01-01), Born et al.
patent: 2488796 (1949-11-01), Baier
patent: 2663268 (1953-12-01), Ahnell
patent: 4186056 (1980-01-01), Muller et al.

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