Flexible or portable closure – partition – or panel – Hanging or drape type
Patent
1998-05-18
1999-06-29
Purol, David M.
Flexible or portable closure, partition, or panel
Hanging or drape type
1603491, A47H 100
Patent
active
059154497
ABSTRACT:
A bomb blast drapery is defined by a sheet of substantially resilient fabric having high burst strength and substantial fullness in width and length such as to project peripherally beyond a glass window in a wall opening of an associated building. The fabric sheet has a fullness in a width direction approximately 21/2 times the wall opening width and a length fullness ranging from 20" for a window height of approximately 10" up to approximately 380" for a window height of up to 190". The burst strength of the fabric sheet is approximately 110 lbs. and the weight thereof is substantially 4.2 oz. per linear yard. A bottom hem of the flexible sheet includes a weight and the hem further includes a multiplicity of overfolds housed in a trough. The strength of the fabric sheet, its width and vertical fullness and the weighted bottom hem essentially prevent debris, such as glass shards, created by a bomb blast from adversely effecting humans and property adjacent a window with which the bomb blast drapery is associated.
REFERENCES:
patent: 2522509 (1950-09-01), Fridolph
patent: 2599429 (1952-06-01), Bernhard
patent: 3224495 (1965-12-01), Truesdale
patent: 4180352 (1979-12-01), Divers et al.
patent: 4874028 (1989-10-01), Lynch et al.
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