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US 2022/0178231 A1Published application
Apparatus and method for securing end pieces to a mandrel
AssigneeFlowco Production Solutions, LLC
InventorsGarrett S. Boyd, Mitchell A. Boyd
Life of this patent
Estimating the term…
Abstract
A bumper spring assembly having a one piece mandrel including an integral head piece is further configured with a cage assembly retained on the mandrel with a cage nut locked to the mandrel to obviate the need for pins, set screws, and the like, to provide a more robust assembly. In two embodiments the cage nut is locked to the mandrel in a swaging operation. Improved flow of fluids through and around the bumper spring assembly are also provided
Claims20
A method of manufacturing a bumper spring assembly, the method comprising:
- generating an elongated member having a head end and a tail end, the tail end having a concentric bore at a bored distal portion of the tail end with external threads surrounding the bored distal portion of the tail end;
- generating an end piece having internal threads;
- installing a bumper spring concentrically on the elongated member;
- installing the end piece by threading the internal threads of the end piece onto the external threads of the tail end, such that the bumper spring is confined between the head end and the end piece,
- expanding an outermost end of the bored distal portion of the elongated member outward to thereby secure the end piece to the bored distal portion of the elongated member.
2 more elements
Dependencies are inferred from the claim text.