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US 2021/0230967 A1Published application
Multi-function valve
OwnerKerry Shawn Devinney, Douglas John Blewinventors
Life of this patent
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Abstract
A multi-function valve is disclosed. The multi-function valve including a housing having an internal bore therein; a spool valve positioned in the internal bore, the spool valve configured to seal and direct a flow of compressed air and exhaust; and a spring operably connected to the spool valve, the spring biasing the spool valve in a normally open exhausting position.
Claims14
A multi-function valve, comprising:
- a housing having an internal bore therein;
- a spool valve positioned in the internal bore, the spool valve configured to seal and direct a flow of compressed air and exhaust;
- and
- a spring operably connected to the spool valve, the spring biasing the spool valve in a normally open exhausting position.
1 more element
A method of operating a pump, comprising the steps of:
- operably connecting a multi-function valve to a pump, the multi-function valve having:
- a spool valve positioned in an internal bore of a housing;
- a check valve positioned at an anterior end of the spool valve;
- and
- a spring operably connected to the spool valve;
- and
- placing the pump into a well bore;
- moving the spool valve into a normally open state where a vent of the multi-function valve is open and fluid enters a casing of the pump;
- moving the spool valve into a normally off state, closing the vent and opening an air inlet;
- using the air inlet to provide compressed air into the casing, causing the fluid in the casing to discharge out a discharge tube.
7 more elements
Dependencies are inferred from the claim text.