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US 2019/0163210 A1Published application
Pressure regulator
OwnerDon Duffin, Roger Duffininventors
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Abstract
What is disclosed is a pressure regulator having a mechanism to turn fluid flow through the pressure regulator on or off. The pressure regulator incorporates an actuator by which fluid flow to a pressure chamber that controls the linear movement of a flow tube is selectively actuated from one of a downstream supply and a pressurized fluid supply, such as an upstream supply. The actuator can be a manual, electromechanical, hydraulic or other form of actuator.
Claims18
A pressure regulator with an on/off function, said pressure regulator comprising:
- a housing assembly defining a fluid flow path from an input end to an output end, wherein fluid output from said housing is defined as a downstream fluid supply;
- a tubular flow tube supported within said housing assembly, wherein said tubular flow tube defines a fluid flow path from a first tubular flow tube end to a second tubular flow tube end;
- a pressure chamber defined by a diaphragm extending between said housing assembly and said tubular flow tube, wherein said tubular flow tube is configured for linear movement toward and away from a valve seat in response to fluid pressure on said diaphragm from said pressure chamber;
- a fluid port configured to deliver fluid to said pressure chamber;
- and
- an actuator configured to selectively distribute fluid to said fluid port from one of a pressurized fluid supply and said downstream fluid supply.
3 more elements
Dependencies are inferred from the claim text.