Flame and smoke shutoff system

Details Flame and smoke shutoff system Flame and smoke shutoff system

1976-02-09

1978-03-07

Love, John J.

Fire extinguishers

Apparatus which isolates flames from non-burning area

160 1, 169 61, 169 15, E06B 516

Patent

active

040774740

ABSTRACT:
A fire curtain constituted by two nets of nonflammable material is stored in a container on the ceiling and hangs therefrom as soon as a fire starts. Simultaneously, a mixture of water and a bubbling agent in the form of fine bubbles is flown down the curtain to check the spread of flame and smoke. Any section where a fire starts can be isolated from neighboring sections by means of a plurality of such fire curtains. Made of soft, flexible material, the curtain used neither injures a person upon closure nor prevents him from escaping to safer places.

REFERENCES:
patent: 259063 (1882-06-01), Von Falkenhausen
patent: 803618 (1905-11-01), Mumford
patent: 998065 (1911-07-01), Willson
patent: 1027308 (1912-05-01), Bishop
patent: 1092243 (1914-04-01), Cole
patent: 1369518 (1921-02-01), Bumbarger
patent: 2355664 (1944-08-01), McMann
patent: 2720269 (1955-10-01), Diacos
patent: 2761515 (1956-09-01), Field et al.
patent: 3687185 (1972-08-01), Singer
patent: 3872927 (1975-03-01), Stults
patent: 3877525 (1975-04-01), Husson et al.

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