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US 2025/0155304 A1Published application
Safety device for fluid ends
AssigneeForum US, Inc.
InventorsStephen PATTERSON, Sohaib ANWER, Francis SANTOS, Blake E. SMITH, Paul NGUYEN
Life of this patent
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Abstract
A safety device coupled to a fluid end such that the safety device is in fluid communication with at least one of a suction chamber and a discharge chamber of the fluid end. The safety device has an outer housing and a visual indicator. The visual indicator is moveable between a first position where the visual indicator is retracted into the outer housing, and a second position where the visual indicator is extended out of the outer housing.
Claims20
A fluid end, comprising:
- a fluid end body having a suction chamber and a discharge chamber formed within the fluid end body;
- a suction valve assembly configured to control fluid flow into the suction chamber;
- a discharge valve assembly configured to control fluid flow into the discharge chamber;
- and
- a safety device coupled to the fluid end body and in fluid communication with at least one of the suction chamber and the discharge chamber, wherein the safety device comprises an outer housing and a visual indicator, and wherein the visual indicator is moveable between a first position where the visual indicator is retracted into the outer housing, and a second position where the visual indicator is extended out of the outer housing.
2 more elements
A safety method, comprising:
- shutting down a fluid end by stopping pressurized fluid flow through the fluid end and draining pressurized fluid from the fluid end;
- when the fluid end is not operating, viewing a safety device that is coupled to the fluid end to determine whether there is still pressurized fluid within the fluid end at a pressure above a predetermined pressure, wherein the safety device comprises an outer housing and a visual indicator at least partially disposed within the outer housing that is movable between a first position to a second position;
- if the visual indicator is viewed as being in the first position such that the visual indicator is retracted into the outer housing, then further comprising accessing internal components of the fluid end by removing a cover of the fluid end;
- and
- if the visual indicator is viewed as being in the second position such that the visual indicator is extended out of the outer housing, then further comprising draining the pressurized fluid again from the fluid end until the safety device is viewed as being in the first position.
2 more elements
Dependencies are inferred from the claim text.