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US 8,550,113 B1Granted
Vacuum breaker flow regulator
AssigneeHamernik-Harrod, Inc.
InventorsEdward L. Hamernik, David B. Larson
Life of this patent
Estimating the term…
Abstract
A single stage vacuum breaker flow regulator includes a diaphragm retained in an elevated position in between atmosphere and an outlet chamber for a gaseous medium. A valve in communication with an inlet chamber is yieldingly urged to a closed position by a spring. Cam levers are movable by the diaphragm upon a reduction in pressure to sub-atmospheric in the outlet chamber. The movement of said cam levers in response to a reduction in pressure is transmitted to a yieldingly movable valve to open said valve to the flow of gas from said inlet chamber to said outlet chamber.
Claims25
A single stage regulator for the flow of gas comprising:
- (a) a body having an inlet, an outlet and a valve between said inlet and said outlet, said valve yieldingly movable along an axis from a closed position to an open position;
- (b) a compartment space between said valve and said outlet positioned to receive gas flowing through said valve when said valve is open, said compartment space communicating with said outlet;
- (c) a diaphragm on the opposite side of said compartment space from said valve, said diaphragm movable in response to a reduction in pressure in said compartment space to reduce the size of said compartment space;
- (d) one or more cam members engaged to said diaphragm and movable in response to movement of said diaphragm, movement of said cam members in response to a reduction in pressure causing axial movement of said valve to an open position permitting flow of gas from said inlet, to said compartment space and to said outlet;
- (e) an axially extending opening including (i) a first chamber housing said valve for receiving gas from said inlet, (ii) a second chamber between said first chamber and said diaphragm and (iii) a first passageway between said first chamber and said second chamber, said first passageway being smaller in size than both said first chamber and said second chamber;
- (f) a seal mounted on said valve for closing said first passageway;
- (g) a valve housing axially spaced from said seal encircling a portion of said valve, said valve housing having an axial passageway between said first chamber and atmosphere, said axial passageway being sealed with seal rings is substantially the same area as said first passageway, said valve including reduced size extension slidably engaged in said axial passageway, and
- (h) a spring yieldingly urging said valve axially to a position at which said seal closes the passageway between said first chamber and said second chamber.
5 more elements
A single stage regulator for the flow of gas comprising:
- (a) a body having an axial opening extending along an axis from a lower end to an upper end, an inlet disposed at an angle to said axis extending to said axial opening, an outlet and a valve between said inlet and said outlet, said valve yieldingly movable along said axis from a closed position to an open position, said axial opening including (i) a first chamber housing said valve for receiving gas from said inlet, (ii) a second chamber between said first chamber and said upper end and (iii) a first passageway between said first chamber and said second chamber, said first passageway being smaller in size than both said first chamber and said second chamber;
- (b) a compartment space between said valve and said outlet positioned to receive gas flowing through said valve when said valve is open, said compartment space communicating with said outlet;
- (c) a diaphragm on the opposite side of said compartment space from said valve, said diaphragm movable in response to a reduction in pressure in said compartment space to reduce the size of said compartment space;
- (d) one or more cam members engaged to said diaphragm and movable in response to movement of said diaphragm, movement of said cam members in response to a reduction in pressure causing axial movement of said valve to an open position permitting flow of gas from said inlet, to said compartment space and to said outlet;
- (e) a seal mounted on said valve for closing said first passageway;
- (f) a valve housing axially spaced from said seal encircling a portion of said valve, said valve housing having an axial passageway between said first chamber and atmosphere, said axial passageway being substantially the same size as said first passageway, said valve including reduced size extension slidably engaged in said axial passageway;
- (g) a spring yieldingly urging said valve axially to a position at which said seal closes the passageway between said first chamber and said second chamber;
- (h) a valve guide positioned in said valve housing and encircling said valve extension;
- (i) an actuator pin contacting said valve seal, said actuator pin movable axially in response to movement of said cam members to move said seal and said valve to open said passageway to the flow of gas;
- (j) an adjustment member on said actuator pin for varying the amount of travel required to move said actuator pin and valve;
- and
- (k) a loading lever in contact with said actuator pin, said loading lever being movable by said one or more cam members to move said valve to said open position.
9 more elements
A single stage regulator for the flow of gas comprising:
- (a) a body having an inlet, an outlet and a valve between said inlet and said outlet, said valve yieldingly movable along an axis from a closed position to an open position wherein said body has an axially extending opening including (i) a first chamber housing said valve for receiving gas from said inlet, (ii) a second chamber between said first chamber and said diaphragm and (iii) a first passageway between said first chamber and said second chamber, said first passageway being smaller in size than both said first chamber and said second chamber;
- (b) a compartment space between said valve and said outlet positioned to receive gas flowing through said valve when said valve is open, said compartment space directing the flow of gas to said outlet;
- (c) a diaphragm on the opposite side of said compartment space from said valve, said diaphragm movable in response to a reduction in pressure in said compartment space to reduce the size of said compartment space;
- (d) one or more cam members engaged to said diaphragm and movable in response to movement of said diaphragm, movement of said cam members in response to a reduction in pressure causing axial movement of said valve to an open position permitting flow of gas from said inlet, to said compartment space and to said outlet
- (e) a seal mounted on said valve for closing said first passageway;
- (f) a valve housing axillary spaced from said seal encircling a portion of said valve, said valve housing having an axial passageway between said first chamber and atmosphere, said axial passageway being sealed with seal rings is substantially the same area as said first passageway, said valve including reduced size extension slidably engaged in said axial passageway, and
- (g) a spring yieldingly urging said valve axially to a position at which said seal closes the passageway between said first chamber and said second chamber.
4 more elements
A single stage regulator for the flow of gas comprising:
- (a) a body having an axial opening extending along an axis from a lower end to an upper end, an inlet disposed at an angle to said axis extending to said axial opening, an outlet and a valve between said inlet and said outlet, said valve yieldingly movable along said axis from a closed position to an open position, said axial opening including (i) a first chamber housing said valve for receiving gas from said inlet, (ii) a second chamber between said first chamber and said upper end and (iii) a first passageway between said first chamber and said second chamber, said first passageway being smaller in size than both said first chamber and said second chamber;
- (b) a compartment space between said valve and said outlet positioned to receive gas flowing through said valve when said valve is open, said compartment space communicating with said outlet;
- (c) a diaphragm on the opposite side of said compartment space from said valve, said diaphragm movable in response to a reduction in pressure in said compartment space to reduce the size of said compartment space;
- (d) one or more cam members engaged to said diaphragm and movable in response to movement of said diaphragm, movement of said cam members in response to a reduction in pressure causing axial movement of said valve to an open position permitting flow of gas from said inlet, to said compartment space and to said outlet;
- (e) a seal mounted on said valve for closing said first passageway;
- (f) a valve housing axially spaced from said seal encircling a portion of said valve, said valve housing having an axial passageway between said first chamber and atmosphere, said axial passageway being substantially the same size as said first passageway, said valve including reduced size extension slidably engaged in said axial passageway;
- and
- (g) a spring yieldingly urging said valve axially to a position at which said seal closes the passageway between said first chamber and said second chamber.
5 more elements
Dependencies are inferred from the claim text.