Inflatable partition for fighting mine fires

Patent · Sat Dec 31 23:00:00 EST 1994

OSTI ID:870176

Conti, Ronald S ^[1]; Lazzara, Charles P ^[1]

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1. Pittsburgh, PA

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.

• Research Organization: National Energy Technology Laboratory, Pittsburgh, PA, and Morgantown, WV
• Assignee: United States of America as represented by Secretary of (Washington, DC)
• Patent Number(s): US 5469920
• OSTI ID: 870176
• Country of Publication: United States
• Language: English

Related Subjects

/169/52/405/
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