The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Sep. 16, 2025

Filed:

Mar. 28, 2025
Applicant:

Kerr Machine Co., Sulphur, OK (US);

Inventors:

Kelcy Jake Foster, Sulphur, OK (US);

Mark S. Nowell, Ardmore, OK (US);

Brandon Scott Ayres, Ardmore, OK (US);

Christopher Todd Barnett, Stratford, OK (US);

Assignee:

Kerr Machine Co., Sulphur, OK (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04B 53/22 (2006.01); F04B 1/0408 (2020.01); F04B 1/0421 (2020.01); F04B 1/122 (2020.01); F04B 1/145 (2020.01); F04B 1/16 (2006.01); F04B 1/18 (2020.01); F04B 53/16 (2006.01); F16B 35/00 (2006.01); F16B 39/24 (2006.01); F16B 43/00 (2006.01);
U.S. Cl.
CPC ...
F04B 53/22 (2013.01); F04B 1/0408 (2013.01); F04B 1/0421 (2013.01); F04B 1/122 (2013.01); F04B 1/145 (2013.01); F04B 1/16 (2013.01); F04B 1/18 (2013.01); F04B 53/16 (2013.01); F16B 35/005 (2013.01); F16B 39/24 (2013.01); F16B 43/00 (2013.01); F05B 2260/301 (2013.01);
Abstract

A fluid end having its fluid flow bores sealed without threading a retaining nut into the walls of each bore. The fluid ends may be assembled using a plurality of different kits that each comprise a fluid end body, a component, a retainer element, and a fastening system. The retainer element holds the component within each of the bores formed in the fluid end body and the fastening system secures the retainer element to the body. The fastening system comprises a plurality of externally threaded studs, washers and nuts in some embodiments. In other embodiments, the fastening system comprises a plurality of screws.


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