Stock material or miscellaneous articles – Composite – Of bituminous or tarry residue
Patent
1979-03-23
1983-08-16
Capossela, Ronald C.
Stock material or miscellaneous articles
Composite
Of bituminous or tarry residue
428235, E21F 114
Patent
active
043984517
ABSTRACT:
An improved brattice cloth construction and method of utilizing the same in the ventilation of underground mines comprising a coherent, strong felt formed from a thick batting or mat of textile staple fibers needle-punched into dense, tightly intertwined and interlocking engagement, a flame retarding chemical impregnant in sufficient amount to impart to felt an acceptable flame resistance, and preferably an openwork substrate disposed within the staple fiber felt with staple fibers needle-punched therethrough and interconnected therewith.
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patent: 3179551 (1965-04-01), Dudas
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patent: 3451885 (1969-06-01), Klein
patent: 4009649 (1977-03-01), Thimons
patent: 4055074 (1977-10-01), Thimons
Capossela Ronald C.
Daniel William J.
Polyweave Products, Inc.
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