US 12,345,254 B2
Fluid end assembly
Christopher Todd Barnett, Stratford, OK (US); Micheal Cole Thomas, Azle, TX (US); Nicholas Son, Davis, OK (US); John Keith, Ardmore, OK (US); and Kelcy Jake Foster, Sulphur, OK (US)
Assigned to Kerr Machine Co., Sulphur, OK (US)
Filed by Kerr Machine Co., Sulphur, OK (US)
Filed on Oct. 31, 2024, as Appl. No. 18/933,692.
Application 18/933,692 is a continuation in part of application No. 18/490,864, filed on Oct. 20, 2023, granted, now 12,135,024.
Application 18/490,864 is a continuation in part of application No. 18/488,435, filed on Oct. 17, 2023, granted, now 12,000,257, issued on Jun. 4, 2024.
Application 18/490,864 is a continuation in part of application No. 17/884,712, filed on Aug. 10, 2022, granted, now 12,188,458.
Application 18/488,435 is a continuation in part 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 63/508,577, filed on Jun. 16, 2023.
Claims priority of provisional application 63/506,222, filed on Jun. 5, 2023.
Claims priority of provisional application 63/422,637, filed on Nov. 4, 2022.
Claims priority of provisional application 63/416,644, filed on Oct. 17, 2022.
Claims priority of provisional application 63/312,541, filed on Feb. 22, 2022.
Claims priority of provisional application 63/310,269, filed on Feb. 15, 2022.
Claims priority of provisional application 63/309,168, filed on Feb. 11, 2022.
Claims priority of provisional application 63/304,070, filed on Jan. 28, 2022.
Claims priority of provisional application 63/301,524, filed on Jan. 21, 2022.
Claims priority of provisional application 63/283,487, filed on Nov. 28, 2021.
Claims priority of provisional application 63/246,099, filed on Sep. 20, 2021.
Claims priority of provisional application 63/240,889, filed on Sep. 4, 2021.
Claims priority of provisional application 63/235,251, filed on Aug. 20, 2021.
Claims priority of provisional application 63/233,241, filed on Aug. 14, 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 2025/0075695 A1, Mar. 6, 2025
Int. Cl. F16K 1/42 (2006.01); F04B 1/0421 (2020.01); F04B 15/02 (2006.01); F04B 53/00 (2006.01); F04B 53/10 (2006.01); F04B 53/14 (2006.01); F04B 53/16 (2006.01); F04B 53/22 (2006.01); F16J 15/26 (2006.01); F16K 11/10 (2006.01); E21B 43/26 (2006.01); F04B 1/0452 (2020.01); F04B 1/0538 (2020.01); F04B 7/00 (2006.01); F04B 7/02 (2006.01); F04B 17/00 (2006.01); F04B 19/04 (2006.01); F04B 19/22 (2006.01); F04B 53/18 (2006.01); F16L 55/11 (2006.01)
CPC F04B 53/22 (2013.01) [F04B 1/0421 (2013.01); F04B 15/02 (2013.01); F04B 53/007 (2013.01); F04B 53/1022 (2013.01); F04B 53/1032 (2013.01); F04B 53/14 (2013.01); F04B 53/164 (2013.01); F16J 15/26 (2013.01); F16K 1/42 (2013.01); F16K 11/105 (2013.01); E21B 43/2607 (2020.05); F04B 1/0452 (2013.01); F04B 1/0538 (2013.01); F04B 7/0003 (2013.01); F04B 7/0084 (2013.01); F04B 7/0088 (2013.01); F04B 7/0208 (2013.01); F04B 7/0266 (2013.01); F04B 17/00 (2013.01); F04B 19/04 (2013.01); F04B 19/22 (2013.01); F04B 53/006 (2013.01); F04B 53/18 (2013.01); F16L 55/11 (2013.01)] 22 Claims
OG exemplary drawing
 
1. A fluid end, comprising:
a fluid routing plug having a first annular shoulder and an outer intermediate surface, wherein a stress relief cutout is defined on a surface of the fluid routing plug between the first annular shoulder and the outer intermediate surface;
a housing disposed adjacent to the fluid routing plug and having a second annular shoulder; and
a insert defining a front surface abutting the first annular shoulder and a rear surface abutting the second annular shoulder, wherein the front surface and rear surface are interconnected by an inner intermediate surface and an outer intermediate surface, the front surface and the inner intermediate surface connected by a first beveled surface, wherein the first beveled surface is disposed proximate the stress relief cutout.