F - Mech Eng,Light,Heat,Weapons – 16 – K
Patent
F - Mech Eng,Light,Heat,Weapons
16
K
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
Cook John E.
Hanson John D.
Canadian Fram Limited
Macrae & Co.
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