US 12,404,857 B2
Cooling sleeve for use with a fluid end
Micheal Cole Thomas, Azle, TX (US); Christopher Todd Barnett, Stratford, OK (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 Nov. 26, 2024, as Appl. No. 18/960,118.
Claims priority of provisional application 63/602,912, filed on Nov. 27, 2023.
Prior Publication US 2025/0172139 A1, May 29, 2025
Int. Cl. F04B 53/16 (2006.01); F04B 53/08 (2006.01); F16J 15/18 (2006.01)
CPC F04B 53/164 (2013.01) [F04B 53/08 (2013.01); F16J 15/182 (2013.01)] 29 Claims
OG exemplary drawing
 
1. A fluid end, comprising:
a housing having a rectilinear bore extending therethrough and opposed front and rear surfaces;
a plunger configured to reciprocate within the housing, at least a portion of the plunger situated within the bore;
a stuffing box removably attached to the rear surface of the housing, the stuffing box configured to surround at least a portion of the plunger; and
a cooling sleeve surrounding at least a portion of the stuffing box.