Patent ID: 11939975
Assignee: SPM OIL & GAS INC.
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F | IPC F

Claim 7:
8. A fluid end section for a reciprocating pump assembly, the fluid end section comprising:
a fluid cylinder comprising a pressure chamber and an access port, the access port extending into the fluid cylinder along a central longitudinal axis, the access port comprising a plurality of axial openings spaced around a circumference of the access port, and a plurality of extensions that extend radially inward toward the central longitudinal axis; and
a suction cover comprising a plug configured to be at least partially received within the access port of the fluid cylinder, the plug comprising a plurality of protrusions configured to be received through the plurality of axial openings of the access port such that the plurality of protrusions extend within the access port when the plug is at least partially received within the access port, wherein the plug is configured to be rotated within the access port between an unlocked position where each protrusion is aligned with a respective axial opening of the plurality of axial openings, and a locked position where an opposing sidewall surface of each extension blocks an opposing sidewall surface of a respective protrusion in an axial direction, preventing removal of the plug.