US 12,281,645 B2
Modular power end
Kelcy Jake Foster, Ardmore, OK (US); Micheal Cole Thomas, Ardmore, OK (US); Christopher Todd Barnett, Stratford, OK (US); Nicholas Son, Davis, OK (US); John Keith, Ardmore, OK (US); Mark S. Nowell, Ardmore, OK (US); Guy J. Lapointe, Sulphur, OK (US); and Michael Eugene May, Ardmore, OK (US)
Assigned to Kerr Machine Co., Sulphur, OK (US)
Filed by Kerr Machine Co., Sulphur, OK (US)
Filed on Sep. 14, 2022, as Appl. No. 17/944,580.
Application 17/944,580 is a continuation of application No. 17/550,453, filed on Dec. 14, 2021, granted, now 11,635,068.
Application 17/550,453 is a continuation in part of application No. 16/951,844, filed on Nov. 18, 2020, granted, now 11,208,996, issued on Dec. 28, 2021.
Claims priority of provisional application 63/217,566, filed on Jul. 1, 2021.
Claims priority of provisional application 63/191,619, filed on May 21, 2021.
Claims priority of provisional application 63/175,692, filed on Apr. 16, 2021.
Claims priority of provisional application 63/172,398, filed on Apr. 8, 2021.
Claims priority of provisional application 63/171,866, filed on Apr. 7, 2021.
Claims priority of provisional application 63/124,945, filed on Dec. 14, 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 2023/0003207 A1, Jan. 5, 2023
Int. Cl. F04B 39/00 (2006.01); E21B 43/26 (2006.01); F04B 15/02 (2006.01); F16H 57/02 (2012.01)
CPC F04B 39/0094 (2013.01) [F04B 15/02 (2013.01); F16H 57/02 (2013.01); E21B 43/2607 (2020.05); F16H 2057/0203 (2013.01)] 17 Claims
OG exemplary drawing
 
1. An assembly, comprising:
a reciprocating pump assembly comprising:
a crank frame housing a crankshaft, the crank frame comprising:
a single, integrally formed piece having opposed side walls and upper and lower walls, the upper and lower walls joined by the opposed side walls and joined by a plurality of support walls positioned between the opposed side walls, each support wall having an integrally formed foot together providing a plurality of feet;
in which a bearing opening is formed within each of the plurality of support walls, each bearing opening receiving a journal bearing;
a crosshead section positioned offset from the crank frame, the crosshead section comprising a plurality of crosshead frames positioned in a side-by-side relationship, each crosshead frame housing a crosshead;
a single-piece, integrally formed central support plate positioned between the crank frame and the crosshead section; and
a first set of stay rods that traverse the crosshead section, the central support plate, and the crank frame; and
a base section comprising a plurality of spaced apart attachment points, each attachment point corresponding to the plurality of feet for securing the crank frame to the base section.