US 12,276,276 B2
Fluid end
Micheal Cole Thomas, Azle, TX (US); Christopher Todd Barnett, Stratford, OK (US); Kelcy Jake Foster, Sulphur, OK (US); Nicholas Son, Davis, OK (US); John Keith, Ardmore, OK (US); and Mark S. Nowell, Ardmore, OK (US)
Assigned to Kerr Machine Co., Sulphur, OK (US)
Filed by Kerr Machine Co., Sulphur, OK (US)
Filed on Jun. 6, 2024, as Appl. No. 18/736,090.
Application 18/736,090 is a continuation of application No. 18/313,515, filed on May 8, 2023, granted, now 12,012,955.
Application 18/313,515 is a continuation of application No. 17/550,552, filed on Dec. 14, 2021, granted, now 11,644,018, issued on May 9, 2023.
Application 17/550,552 is a continuation in part of application No. 17/515,707, filed on Nov. 1, 2021, granted, now 11,359,615, issued on Jun. 14, 2022.
Application 17/515,707 is a continuation of application No. 16/951,741, filed on Nov. 18, 2020, granted, now 11,162,479, issued on Nov. 2, 2021.
Claims priority of provisional application 63/283,487, filed on Nov. 28, 2021.
Claims priority of provisional application 63/168,364, filed on Mar. 31, 2021.
Claims priority of provisional application 63/155,835, filed on Mar. 3, 2021.
Claims priority of provisional application 63/150,340, filed on Feb. 17, 2021.
Claims priority of provisional application 63/148,065, filed on Feb. 10, 2021.
Claims priority of provisional application 63/125,459, filed on Dec. 15, 2020.
Claims priority of provisional application 63/089,882, filed on Oct. 9, 2020.
Claims priority of provisional application 63/076,587, filed on Sep. 10, 2020.
Claims priority of provisional application 63/053,797, filed on Jul. 20, 2020.
Claims priority of provisional application 63/046,826, filed on Jul. 1, 2020.
Claims priority of provisional application 63/040,086, filed on Jun. 17, 2020.
Claims priority of provisional application 63/033,244, filed on Jun. 2, 2020.
Claims priority of provisional application 63/027,584, filed on May 20, 2020.
Claims priority of provisional application 63/019,789, filed on May 4, 2020.
Claims priority of provisional application 63/018,021, filed on Apr. 30, 2020.
Claims priority of provisional application 63/008,036, filed on Apr. 10, 2020.
Claims priority of provisional application 62/990,817, filed on Mar. 17, 2020.
Claims priority of provisional application 62/968,634, filed on Jan. 31, 2020.
Claims priority of provisional application 62/960,194, filed on Jan. 13, 2020.
Claims priority of provisional application 62/960,366, filed on Jan. 13, 2020.
Claims priority of provisional application 62/959,570, filed on Jan. 10, 2020.
Claims priority of provisional application 62/957,489, filed on Jan. 6, 2020.
Claims priority of provisional application 62/953,763, filed on Dec. 26, 2019.
Claims priority of provisional application 62/940,513, filed on Nov. 26, 2019.
Claims priority of provisional application 62/936,789, filed on Nov. 18, 2019.
Prior Publication US 2024/0318643 A1, Sep. 26, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. F04B 7/02 (2006.01); F04B 7/00 (2006.01); F04B 53/00 (2006.01); F04B 53/10 (2006.01); F04B 53/16 (2006.01); F04B 1/0452 (2020.01); F04B 1/0538 (2020.01); F04B 15/02 (2006.01)
CPC F04B 7/0208 (2013.01) [F04B 7/0088 (2013.01); F04B 53/007 (2013.01); F04B 53/1022 (2013.01); F04B 53/164 (2013.01); F04B 1/0452 (2013.01); F04B 1/0538 (2013.01); F04B 7/0266 (2013.01); F04B 15/02 (2013.01); F04B 53/1032 (2013.01)] 21 Claims
OG exemplary drawing
 
1. A fluid end section, comprising:
a housing having a longitudinal axis and a longitudinal first bore, the longitudinal first bore extending through the housing along the longitudinal axis;
a second bore formed in the housing and intersecting the longitudinal first bore at a second bore intersection;
a third bore formed in the housing and intersecting the longitudinal first bore at a third bore intersection;
wherein the longitudinal first bore is defined by an inwardly-disposed surface having:
a first surface section defined by a first maximum diameter, the first surface section being disposed on a first side of the third bore intersection and the second bore intersection;
a second surface section defined by a second maximum diameter, the second surface section being disposed between the second bore intersection and the third bore intersection; and
a third surface section defined by a third maximum diameter, the third surface section being disposed between the third bore intersection and the second surface;
wherein the second maximum diameter is greater than the third maximum diameter, and the third maximum diameter is greater than the first maximum diameter;
and further comprising a fluid routing plug installed within the longitudinal first bore and comprising:
a body extending between opposed first and second surfaces joined by an outer peripheral surface; and
a plurality of non-intersecting fluid passages formed in the body;
a first insert disposed at the first surface of the fluid routing plug; and
a second insert disposed at the second surface of the fluid routing plug;
wherein the first insert and second insert are formed of a material harder than the fluid routing plug.