Vacuum check valve

F - Mech Eng,Light,Heat,Weapons – 16 – K

Patent

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137/60

F16K 15/00 (2006.01) F02P 5/10 (2006.01) F16K 15/14 (2006.01)

Patent

CA 1224379

Abstract: VACUUM CHECK VALVE A vacuum check valve comprising a single umbrella valve responding to vacuum differences between the input and output of the check valve. The check valve directs the output line to feed a vacuum operated device with either the vacuum source or reference air through a bleed passage. The umbrella shaped valve eliminates the requirement for a diaphragm operated poppet valve.

444968

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