US 12,480,487 B1
Fluid end of pump
David Theodore Figgs, Fort Worth, TX (US); Michael C. Zanoff, Fort Worth, TX (US); Justin Poehls, Glen Rose, TX (US); and Daryl Belshan, Weatherford, TX (US)
Assigned to SPM Oil & Gas Inc., Fort Worth, TX (US)
Filed by SPM Oil & Gas Inc., Fort Worth, TX (US)
Filed on Sep. 10, 2024, as Appl. No. 18/829,681.
Int. Cl. F04B 53/16 (2006.01); F04B 53/00 (2006.01); F04B 53/22 (2006.01); E21B 43/26 (2006.01)
CPC F04B 53/00 (2013.01) [F04B 53/16 (2013.01); F04B 53/22 (2013.01); E21B 43/2607 (2020.05)] 20 Claims
OG exemplary drawing
 
1. A fluid end of a pump, comprising:
a fluid end body defining a bore extending along an axis of the fluid end;
a suction cap removably received within the bore of the fluid end body;
at least one retainer nut removably coupled with the fluid end body and disposed axially adjacent to the suction cap, wherein the at least one retainer nut is at least partially received within the bore of the fluid end body, and wherein the at least one retainer nut includes a projection that extends outwards from the fluid end body along the axis; and
at least one clamping assembly that engages with a portion of the fluid end to prevent a rotation of the at least one retainer nut relative to the fluid end body, wherein the at least one clamping assembly includes:
a clamp removably coupled with the at least one retainer nut, and wherein the clamp includes an annular portion that circumferentially engages with the projection of the at least one retainer nut; and
a reaction arm extending radially outwards from the annular portion of the clamp.
 
16. A method of preventing a rotation of at least one retainer nut of a fluid end of a pump, the fluid end including a fluid end body, the method comprising:
removably coupling the at least one retainer nut with the fluid end body, wherein the at least one retainer nut includes a projection that extends along an axis of the fluid end;
removably coupling a clamp of a clamping assembly with the at least one retainer nut, wherein the clamp includes an annular portion that circumferentially engages with the projection of the at least one retainer nut, and wherein the clamping assembly further includes a reaction arm extending radially outwards from the annular portion of the clamp; and
engaging the clamping assembly with a portion of the fluid end to prevent the rotation of the at least one retainer nut relative to the fluid end body.