Movable door seal

Details Movable door seal Movable door seal

1986-08-11

1988-01-05

Perham, Alfred C.

Static structures (e.g., buildings)

Combined

16366, 49246, E06B 100, E06B 716, E06B 500

Patent

active

047166975

ABSTRACT:
A truck loading dock door seal which moves between a "summer" position which permits ventilation to enter a truck and a "winter" position which establishes sealing engagement between the building and a truck position at a loading dock. Such movement may be provided by a double-acting hinge.

REFERENCES:
patent: 1117903 (1914-11-01), Powers
patent: 2072641 (1937-03-01), Madland
patent: 2901783 (1959-09-01), Soddy
patent: 3016261 (1962-01-01), Tatter
patent: 3181205 (1965-05-01), Frommelt et al.
patent: 3375625 (1968-04-01), Edkins et al.
patent: 3934380 (1976-01-01), Frommelt et al.
patent: 4003170 (1977-01-01), Mellyn
patent: 4104836 (1978-08-01), Weibull
patent: 4286411 (1981-09-01), Wikkerink et al.

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