Uni-directional fluid valve

Details Uni-directional fluid valve Uni-directional fluid valve

F - Mech Eng,Light,Heat,Weapons

16

K

F16K 15/16 (2006.01) A62B 18/10 (2006.01) F16K 15/14 (2006.01)

Patent

CA 2181878

A uni-directional fluid valve particularly for use as an exhalation valve for a filter mask comprises a flexible flap attached at one end to a concave portion of a seat. The mounting of the flap imparts to it a transverse curvature, stiffening the flap sufficiently for it to remain seated in the absence of a pressure differential across it even when orientated with the seat above the flap.

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