US 12,286,969 B2
Fluid end assembly
Kelcy Jake Foster, Sulphur, OK (US); Mark S. Nowell, Ardmore, OK (US); Brandon Scott Ayres, Ardmore, OK (US); and Christopher Todd Barnett, Stratford, OK (US)
Assigned to Kerr Machine Co., Sulphur, OK (US)
Filed by Kerr Machine Co., Sulphur, OK (US)
Filed on Nov. 20, 2024, as Appl. No. 18/953,750.
Application 18/953,750 is a continuation of application No. 18/321,054, filed on May 22, 2023, granted, now 12,152,582, issued on Dec. 26, 2024.
Application 18/321,054 is a continuation of application No. 17/882,267, filed on Aug. 5, 2022, granted, now 11,655,812, issued on May 23, 2023.
Application 17/882,267 is a continuation of application No. 16/876,414, filed on May 18, 2020, granted, now 11,408,419, issued on Aug. 9, 2022.
Application 16/876,414 is a continuation of application No. 16/035,126, filed on Jul. 13, 2018, granted, now 10,670,013, issued on Jun. 2, 2020.
Claims priority of provisional application 62/562,588, filed on Sep. 25, 2017.
Claims priority of provisional application 62/536,297, filed on Jul. 24, 2017.
Claims priority of provisional application 62/532,574, filed on Jul. 14, 2017.
Prior Publication US 2025/0075697 A1, Mar. 6, 2025
Int. Cl. 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)
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)] 13 Claims
OG exemplary drawing
 
1. A hydraulic fluid pump, comprising:
a fluid end, comprising:
a housing including a first end and a second end opposite the first end, the housing having a plurality of housing bores extending from the first end to the second end;
a first plate fastened to the housing at its first end, the first plate having at least one plate bore axially aligned with the selected one of the plurality of housing bores;
a plug at least partially disposed within a selected one of the plurality of housing bores and closing the selected one of the plurality of housing bores; and
a fastener, threaded to the first plate at the at least one plate bore and abutting the plug, thereby retaining the plug within the housing bore;
a packing disposed within the selected one of the housing bores;
a second plate fastened to the housing at its second end, the second plate having at least one plate bore axially aligned with the selected one of the plurality of housing bores; and a component disposed about the packing and retained within the housing bore by the second plate;
wherein the second plate has the same number of plate bores as the number of housing bores of the housing.