Flexible or portable closure – partition – or panel – Plural strip – slat – or panel type – Roll type
Patent
1993-03-17
1995-01-03
Purol, David M.
Flexible or portable closure, partition, or panel
Plural strip, slat, or panel type
Roll type
160264, E06B 908
Patent
active
053777387
ABSTRACT:
A shutter assembly has a plurality of laths which extend between a pair of vertically extending side channels disposed to either side of a doorway, window or the like. A number of the laths are strengthened and are hollow box sections through which a pair of wire cables extend. The wire cables are anchored to retention members which can move vertically in the side channels. The remaining laths have windlocks at their ends which are located in and are moveable in the side channels. The wire strengthened laths are alternately interlaced with the remaining laths. The wire cables give additional strength to the strengthened laths and are sufficiently strong to withstand a heavy blow to the shutter assembly in the vicinity of the strengthened laths, extending with the blow and thereby absorbing energy rather than breaking.
REFERENCES:
patent: 3292685 (1966-12-01), Clark
patent: 3489200 (1970-01-01), Recchione
patent: 4432591 (1984-02-01), Rinkewich
patent: 4690193 (1987-09-01), Morrison et al.
Alsecure Limited
Purol David M.
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