US 12,012,954 B2
Fluid end
Micheal Cole Thomas, Ardmore, OK (US); Christopher Todd Barnett, Stratford, OK (US); Kelcy Jake Foster, Ardmore, 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 Jan. 23, 2023, as Appl. No. 18/157,973.
Application 18/157,973 is a continuation of application No. 17/838,362, filed on Jun. 13, 2022, granted, now 11,560,884.
Application 17/838,362 is a continuation 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 63/089,882, 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 62/960,366, filed on Jan. 13, 2020.
Claims priority of provisional application 62/960,194, 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 2023/0160382 A1, May 25, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. F04B 15/02 (2006.01); F04B 1/0452 (2020.01); 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 1/42 (2006.01); F16K 11/10 (2006.01); E21B 43/26 (2006.01); 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 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)] 20 Claims
OG exemplary drawing
 
1. A fluid end section, comprising:
a housing having a longitudinal axis and opposed first and second surfaces joined by an outer intermediate surface;
a horizontal bore formed within the housing and interconnecting the first and second surfaces, the horizontal bore extending along the longitudinal axis of the housing;
a discharge bore formed in the housing and interconnecting the horizontal bore and the intermediate surface;
an upper intake bore formed in the housing and interconnecting the horizontal bore and the intermediate surface;
a lower intake bore formed in the housing and interconnecting the horizontal bore and the intermediate surface; in which the upper intake bore and the lower intake bore are collinear;
a plunger packing installed within the housing;
a retainer attached to the housing using a plurality of fasteners, the retainer having a threaded central passage formed therein; and
a packing nut threaded into the threaded central passage of the retainer and engaging the plunger packing.