Hermetically sealed sectional and detachable protective covers

Details Hermetically sealed sectional and detachable protective covers Hermetically sealed sectional and detachable protective covers

1975-04-21

1977-01-18

Perham, Alfred C.

Static structures (e.g., buildings)

Imperforate panel with integral reinforcing

52466, 52520, 52530, E04C 232

Patent

active

040031772

ABSTRACT:
A hermetically sealable sectional structural cover free of perforations and comprising a longitudinally extending planar web portion with upstanding side flange portions, the flange portions having lateral portions extending inwardly over the web portion from the tops thereof, and corrugations extending transversely along the web portion, along the flange portions and along the lateral portions but terminating short of the free edges of the lateral portions.

REFERENCES:
patent: 2117092 (1938-05-01), Guiterman
patent: 2436543 (1948-02-01), Blaski
patent: 2735383 (1956-02-01), Gerbracht
patent: 3093216 (1963-06-01), Dunham
patent: 3111788 (1963-11-01), Ouellet
patent: 3228159 (1966-01-01), Vecchiarelli et al.
patent: 3395438 (1968-08-01), Seeff
patent: 3453794 (1969-07-01), Blok

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