F - Mech Eng,Light,Heat,Weapons – 16 – K
Patent
F - Mech Eng,Light,Heat,Weapons
16
K
137/60
F16K 15/00 (2006.01) F16K 15/14 (2006.01) F16K 17/00 (2006.01)
Patent
CA 1121693
ABSTRACT OF THE DISCLOSURE A back pressure regulator and non-return valve is provided herein. It includes a hollow plug having an open inlet end and a closed end having a central aperture therethrough. A closure cap is hermetically slidably disposed within the hollow plug. A plurality of outlet perfora- tions are provided from the hollow plug, the apertures being disposed along helical paths along the outer periphery thereof. Finally, a tubular re- silient diaphragm sleeve envelopes the apertured portion of the hollow plug, the resilient sleeve being secured to the hollow plug only adjacent the open inlet end thereof the tubular resilient diaphragm sleeve having walls of non-uniform thickness. Control of the outflow through an annular outflow path between the hollow plug and the tubular resilient diaphragm is provided by changing the effective length of the hollow plug and to al- ter the number of the outlet apertures in the effective length of the outlet plug remaining. This thereby increases the threshold gaseous pres- sure required to move the thicker portions of the diaphragm away from the hollow plug to provide the annular outflow path. Non-return function is provided by gas pressure on the outside of the tubular resilient diaphragm which seals the annular outflow path.
343085
Marcus & Associates
Ritter Robert A.
LandOfFree
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