Flexible or portable closure – partition – or panel – Roll type – With rotating means
Patent
1994-04-11
1995-01-24
Purol, David M.
Flexible or portable closure, partition, or panel
Roll type
With rotating means
160243, E06B 956
Patent
active
053835107
ABSTRACT:
A method and apparatus for rapidly and reliably sealing off a selected opening from an adjacent path of smoke, noxious fumes or contaminated air which comprises a reel of reinforced transparent, temperature, chemical or radiation resistant material having flexible magnetic edge strips on each side thereof mounted and centered above said opening, and causing the reel to drop in vertical fall adjacent to the opening and simultaneously causing the flexible magnetized strips to become rapidly and magnetically attached to ferromagnetic side rails or ferromagnetic door frame used for fire doors and to expand under pressure while maintaining an air tight seal of the opening. This apparatus is elegantly simple and reliable in both its construction and operation and has an extremely high price/performance figure of merit.
REFERENCES:
patent: 862644 (1907-08-01), Kepler
patent: 2582276 (1952-01-01), Powers
patent: 3006352 (1961-10-01), Hozak
patent: 3016952 (1962-01-01), Shero
patent: 3306345 (1967-02-01), Youngs
patent: 3398779 (1968-08-01), Kuss
patent: 3687185 (1972-08-01), Singer
patent: 3766958 (1973-10-01), Mitchell
patent: 3807480 (1974-04-01), Smart
patent: 3877525 (1975-04-01), Husson et al.
patent: 3960216 (1976-06-01), Isobe
patent: 4077474 (1978-03-01), Hattori
patent: 4079772 (1978-03-01), Klaenhammer et al.
patent: 4398371 (1983-08-01), Jenkins
patent: 4802523 (1989-02-01), Scholten et al.
patent: 5195594 (1993-03-01), Allen et al.
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