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US 2014/0338763 A1Published application
Spring controlled valve
AssigneeProportion-Air, Inc.
InventorDan Cook
Life of this patent
Estimating the term…
Abstract
The present disclosure provides a spring controlled valve including a spring being movable between an expanded position wherein coils of the spring are spaced apart from one another thereby permitting gas flow through the valve and a compressed position wherein the coils are in contact with one another thereby substantially preventing gas flow through the valve.
Claims55
A valve for controlling gas flow, including:
- a spring having a central opening, a first end connected to an opening into an interior of an enclosure to permit gas flow from the interior to the central opening, and a second end connected to a plate to prevent gas flow from the central opening to an exterior of the enclosure, the spring being movable between a normally expanded state wherein coils of the spring are spaced apart from one another to permit gas flow from the central opening to the exterior of the enclosure and a compressed state wherein the coils are in contact with one another to prevent gas flow from the central opening to the exterior of the enclosure;
- whereby when a difference in pressure between the interior and the exterior of the enclosure is above a certain value, gas exterior to the enclosure applies a force to the plate that is sufficient to overcome a constant of the spring and force the spring into its compressed state, thereby preventing gas flow from the interior of the enclosure, through the coils of the spring, to the exterior of the enclosure, and when the difference is below the certain value, the force is insufficient to overcome the spring constant and the spring moves to its normally expanded state, thereby permitting gas flow from the interior of the enclosure, through the coils of the spring, to the exterior of the enclosure.
A valve for controlling gas flow, including:
- a spring being movable between a compressed state wherein coils of the spring prevent gas flow from a central opening of the spring to an exterior space and an expanded state wherein the coils permit gas flow from the central opening to the exterior space, the spring having a first end in flow communication with gas at a first pressure and a second end configured to prevent gas flow from the central opening to the exterior space;
- whereby the spring remains in its compressed state when the first pressure is sufficiently below pressure of gas in the exterior space, thereby preventing gas flow from the first end through the coils of the spring, and the spring moves to its expanded state when the first pressure is not sufficiently below the pressure of the gas in the exterior space, thereby permitting gas flow from the first end through the coils of the spring.
A gas operated valve, including:
- a housing having an upper portion and a lower portion;
- an actuator having a piston disposed in the upper portion, a plate disposed in the lower portion, and a rod connecting the piston to the plate;
- and
- a spring disposed in the lower portion, the spring having a central opening defined by a plurality of coils and being movable between an expanded state and a compressed state;
- wherein the upper portion of the housing has an inlet opening to receive control gas exterior to the housing, and the lower portion of the housing has an inlet opening to receive supply gas and an outlet opening to provide the supply gas to an application;
- and
- wherein the amount of supply gas flow from the lower portion inlet opening to the outlet opening varies with movement of the spring between the expanded state, wherein supply gas flows into the lower portion inlet opening, into the central opening of the spring, out of the central opening through gaps between the coils, and out of the lower portion through the outlet opening, and the compressed state, wherein the coils are in contact with one another thereby substantially preventing supply flow between the lower portion inlet opening and the outlet opening, the movement of the spring being controlled by movement of the actuator in response to pressure of the control gas at the upper portion inlet opening.
4 more elements
A mechanically operated valve, including:
- a housing having an inlet opening for receiving supply gas and an outlet opening for providing supply gas to an application;
- a spring disposed in the housing having a central opening defined by a plurality of coils extending between a first end in flow communication with the inlet opening and a second end;
- and
- an actuator having a plate disposed in the housing in contact with the second end of the spring to prevent gas flow out of the central opening at the second end, a rod coupled to the plate, and a drive lever coupled to the rod, the drive lever being movable between a first position wherein the spring is in an expanded state thereby permitting supply gas from the inlet opening to flow into the central opening through the first end of the spring, out of the central opening through gaps between the coils, and out of the housing through the outlet opening, and a second position wherein the drive lever, through the rod and the plate, applies force to the second end of the spring to move the spring to a compressed state, wherein the coils of the spring are in contact with one another thereby substantially preventing supply gas from flowing out of the central opening of the spring.
1 more element
A mechanically operated valve, including:
- a housing having an inlet opening for receiving supply gas and an outlet opening for providing supply gas to an application;
- a spring disposed in the housing having a central opening defined by a plurality of coils extending between a first end in contact with a lower wall of the housing and a second end;
- and
- an actuator having a plate disposed in the housing in contact with the second end of the spring to prevent gas flow out of the central opening at the second end, a rod coupled to the plate, and a drive lever coupled to the rod, the drive lever being movable between a first position wherein the spring is in an expanded state thereby permitting supply gas from the inlet opening to flow into the central opening through gaps between the coils of the spring, out of the central opening through the gaps, and out of the housing through the outlet opening, and a second position wherein the drive lever, through the rod and the plate, applies force to the second end of the spring to move the spring to a compressed state, wherein the coils of the spring are in contact with one another thereby substantially preventing supply gas from flowing into the central opening of the spring.
1 more element
A pressure regulator, including:
- a housing having a lower portion and an upper portion, the lower portion being coupled to a first conduit to receive supply gas and a second conduit to provide the supply gas to an application, the upper portion being coupled to a third conduit which is coupled as a tap to the second conduit;
- a spring disposed in the lower portion having a first end in contact with a wall of the housing and a second end;
- and
- an actuator including a piston disposed in the upper portion, a plate disposed in the lower portion in contact with the second end of the spring, and a rod connecting the piston to the plate;
- wherein the spring is movable between a normally expanded state, wherein supply gas can flow from the first conduit to the second conduit through gaps in a plurality of coils of the spring, and a compressed state wherein the coils are in contact with one another thereby substantially preventing supply gas from flowing from the first conduit to the second conduit;
- and
- wherein as pressure of the supply gas at the first conduit increases, pressure of the supply gas at the second conduit is regulated as a function of a constant of the spring in that gas flowing though the second conduit also flows through the third conduit into the upper chamber and applies pressure against the piston, causing the plate to move the spring, against the spring constant, toward the compressed state, thereby moving the coils closer together and increasing resistance to gas flow.
4 more elements
A flow restrictor, including:
- a housing having a lower portion and an upper portion, the lower portion being coupled to a first conduit to receive supply gas and a second conduit to provide the supply gas to an application, the upper portion being coupled to a third conduit which is coupled as a tap to the first conduit;
- a spring disposed in the lower portion having a first end in contact with a wall of the housing and a second end;
- and
- an actuator including a piston disposed in the upper portion, a plate disposed in the lower portion in contact with the second end of the spring, and a rod connecting the piston to the plate;
- wherein the spring is movable between a normally expanded state, wherein supply gas can flow from the first conduit to the second conduit through gaps in a plurality of coils of the spring, and a compressed state wherein the coils are in contact with one another thereby substantially preventing supply gas from flowing from the first conduit to the second conduit;
- and
- wherein as pressure of the supply gas at the first conduit increases, flow of the supply gas at the second conduit is regulated as a function of a constant of the spring in that gas flowing though the first conduit also flows through the third conduit into the upper chamber and applies pressure against the piston, causing the plate to move the spring, against the spring constant, toward the compressed state, thereby moving the coils closer together and increasing resistance to gas flow.
4 more elements
A back-pressure regulator, including:
- a housing having a lower portion and an upper portion, the lower portion being coupled to a first conduit to receive supply gas and a second conduit to provide the supply gas to an application, the upper portion being coupled to a third conduit which is coupled as a tap to the first conduit;
- a spring disposed in the lower portion having a first end attached to a wall of the housing and a second end;
- and
- an actuator including a piston disposed in the upper portion, a plate disposed in the lower portion attached to the second end of the spring, and a rod connecting the piston to the plate;
- wherein the spring is movable between a normally compressed state, wherein coils of the spring are in contact with one another thereby substantially preventing supply gas from flowing from the first conduit to the second conduit, and an expanded state wherein the coils are moved apart from one another thereby permitting supply gas to flow from the first conduit to the second conduit through gaps between the coils;
- and
- wherein the spring substantially prevents supply gas flow through the lower portion of the housing until a pressure of the supply gas at the first conduit, which is applied to the piston through the third conduit, is sufficient to move the actuator away from the spring, thereby overcoming a constant of the spring and moving the spring out of the normally compressed state.
4 more elements
A back-pressure regulator, including:
- a housing having a lower portion and an upper portion, the lower portion having a first opening in flow communication with gas exterior to the housing and an opening in flow communication with the gas, the upper portion having a first opening in flow communication with a conduit coupled to the first opening of the lower portion;
- a spring disposed in the lower portion;
- and
- an actuator including a piston disposed in the upper portion, a plate disposed in the lower portion attached to the spring, and a rod connecting the piston to the plate;
- wherein the spring is movable between a normally compressed state, wherein coils of the spring are in contact with one another thereby substantially preventing gas flow between the first and second openings of the lower portion, and an expanded state wherein the coils are moved apart from one another thereby permitting gas flow between the first and second openings of the lower portion through gaps between the coils;
- and
- wherein the spring substantially prevents gas flow through the lower portion of the housing until a pressure of the gas at the first opening of the lower portion, which is applied to the piston through the conduit, is sufficient to move the actuator away from the spring, thereby overcoming a constant of the spring and moving the spring out of the normally compressed state.
4 more elements
Dependencies are inferred from the claim text.