F - Mech Eng,Light,Heat,Weapons – 15 – B
Patent
F - Mech Eng,Light,Heat,Weapons
15
B
137/43.2
F15B 11/02 (2006.01) A61M 5/168 (2006.01) G05D 16/06 (2006.01)
Patent
CA 1293172
ABSTRACT A fluid pressure regulator having an axis and comprising: a body having an inlet cavity and a sensing cavity, an inlet port to the inlet cavity and an outlet port to the sensing cavity; an axial poppet passage interconnecting said cavities; a poppet seat surrounding said poppet passage in said inlet cavity; an axial poppet stem passing through said poppet passage with a peripheral clearance; a poppet head on said stem in said inlet cavity; a poppet seat on said poppet head facing said seat and adap- ted to bear against it to close said poppet passage or to move away from it to open said poppet passage; a flexible diaphragm partially closing said sensing chamber, extending generally normal to said axis, said poppet stem being attached thereto on said axis for axial movement when said diaphragm is flexed; a range spring; an axial range spring adjusting screw threadedly mounted in said body for movement toward and away from said diaphragm when said range spring adjusting screw is turned, said range spring being compressed between said diaphragm and said range spring adjusting screw, said range spring adjusting screw having a central passage with an internal thread; a poppet spring; and a poppet spring adjusting screw threaded into said central passage, said poppet spring being anchored in tension between said poppet spring adjusting screw and said diaphragm.
560405
Otteman John H.
Smart & Biggar
Vemco Corporation
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