Inflatable partition for fighting mine fires

Details Inflatable partition for fighting mine fires Inflatable partition for fighting mine fires

1993-11-08

1995-11-28

Mitchell, David M.

Fire extinguishers

Apparatus which isolates flames from non-burning area

169 64, 52 211, A62C 302

Patent

active

054699207

ABSTRACT:
The seal is a lightweight, inflatable, bag which may be inflated by a portable air generator and is used to seal a burning mine passage. A collapsible tube-like aperture extends through the seal and allows passage of high expansion foam through the seal in a feed tube. The foam fills the passageway and extinguishes the fire. In other embodiments, the feed tubes incorporate means to prevent collapse of the aperture. In these embodiments a shroud connects the feed tube to a foam generator. This seal allows creation of a high expansion foam fire fighting barrier even in upward sloping passages.

REFERENCES:
patent: 4036024 (1977-07-01), Dreker et al.
patent: 5188186 (1993-02-01), Nash

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