US 12,454,944 B2
Fracturing pump arrangement using a plunger with an internal fluid passage
Mark S. Nowell, Ardmore, OK (US); Kelcy Jake Foster, Sulphur, OK (US); Micheal Cole Thomas, Ardmore, OK (US); Christopher Todd Barnett, Stratford, OK (US); Guy J. Lapointe, Sulphur, OK (US); and Brandon Scott Ayres, Ardmore, OK (US)
Assigned to Kerr Machine Co., Sulphur, OK (US)
Filed by Kerr Machine Co., Sulphur, OK (US)
Filed on Mar. 12, 2024, as Appl. No. 18/602,232.
Application 17/692,420 is a division of application No. 16/860,146, filed on Apr. 28, 2020, granted, now 11,578,710, issued on Feb. 14, 2023.
Application 18/602,232 is a continuation of application No. 18/433,703, filed on Feb. 6, 2024.
Application 18/433,703 is a continuation of application No. 18/163,317, filed on Feb. 2, 2023, granted, now 11,952,990.
Application 18/163,317 is a continuation of application No. 17/692,420, filed on Mar. 11, 2022, granted, now 11,592,011, issued on Feb. 28, 2023.
Claims priority of provisional application 62/950,746, filed on Dec. 19, 2019.
Claims priority of provisional application 62/939,339, filed on Nov. 22, 2019.
Claims priority of provisional application 62/901,445, filed on Sep. 17, 2019.
Claims priority of provisional application 62/882,328, filed on Aug. 2, 2019.
Claims priority of provisional application 62/880,409, filed on Jul. 30, 2019.
Claims priority of provisional application 62/878,146, filed on Jul. 24, 2019.
Claims priority of provisional application 62/872,664, filed on Jul. 10, 2019.
Claims priority of provisional application 62/842,009, filed on May 2, 2019.
Prior Publication US 2024/0218864 A1, Jul. 4, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. F04B 1/0408 (2020.01); E21B 43/26 (2006.01); F04B 53/12 (2006.01); F04B 53/14 (2006.01); F04B 53/16 (2006.01)
CPC F04B 1/0408 (2013.01) [F04B 53/12 (2013.01); F04B 53/143 (2013.01); F04B 53/16 (2013.01); E21B 43/2607 (2020.05)] 27 Claims
OG exemplary drawing
 
1. An apparatus comprising:
a fluid end body having a borehole formed therein, the borehole extending along a longitudinal axis of the fluid end body; in which the fluid end body is configured to be attached to a power end having a rotatable crankshaft mechanically coupled to a pony rod installed therein;
a plunger installed within the borehole and having front and rear ends joined by an internal fluid passage; in which the plunger is configured to reciprocate within the borehole along the longitudinal axis of the fluid end body;
an inlet component attached to the rear end of the plunger;
a first clamp attached to a portion of the inlet component and configured to attach the inlet component to the pony rod;
an inlet conduit in fluid communication with the internal fluid passage of the plunger, the inlet conduit comprising:
a fluid intake end joined to a reciprocating end;
in which the fluid intake end is configured to be attached to a stationary inlet manifold;
a removable discharge manifold attached to the fluid end body by a second clamp;
a connect plate fastened to the fluid end body; and
a sleeve situated at least partially within the connect plate and at least partially within the housing, the sleeve configured to house a plunger packing;
in which the reciprocating end of the inlet conduit is attached to the inlet component and is configured to move with the inlet component and the plunger as the plunger reciprocates within the borehole.