Access opening closure device

Details Access opening closure device Access opening closure device

1989-06-30

1990-11-20

Friedman, Carl D.

Static structures (e.g., buildings)

Tensioned or flexed sheet facing

52208, 52507, 52511, 49465, E04F 1700

Patent

active

049708368

ABSTRACT:
A closure device for access openings having a face plate attractively complementing the surface in which said opening occurs and manufally driven spring biased latching mechanisms for securing the device in closing relationship to such opening. Optional gasket means and insulative batt enhance the versatility of the device.

REFERENCES:
patent: 535390 (1895-03-01), Murphy
patent: 1179869 (1916-04-01), Schmidt
patent: 2238865 (1941-04-01), Purinton
patent: 3088560 (1963-05-01), Preuss
Sweet's Catalog File, 1985, vol. 9, pp. 8.12/Bab-3, 8.12/Kar-4.

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