US 12,404,942 B2
Plunger or piston with hardened insert
Justin Lee Hurst, Healdton, OK (US); Aric Martin Gillispie, Duncan, OK (US); and James Alan Olis, Duncan, OK (US)
Assigned to Halliburton Energy Services, Inc., Houston, TX (US)
Filed by Halliburton Energy Services, Inc., Houston, TX (US)
Filed on Feb. 14, 2020, as Appl. No. 16/791,474.
Prior Publication US 2021/0254735 A1, Aug. 19, 2021
Int. Cl. F16K 25/00 (2006.01); E21B 43/26 (2006.01); F16K 3/24 (2006.01); E21B 21/10 (2006.01)
CPC F16K 25/005 (2013.01) [E21B 43/2607 (2020.05); F16K 3/243 (2013.01); E21B 21/106 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A valve assembly comprising:
a hardened insert coupled with a hardened insert carrier;
and a valve body coupled with a valve insert,
wherein, in a closed configuration of the valve assembly, the valve body contacts a primary sealing surface of the hardened insert and the valve insert contacts an initial sealing surface of the hardened insert carrier to prevent fluid flow through the valve assembly, and, in an open configuration of the valve assembly, the valve body does not contact the primary sealing surface of the hardened insert and the valve insert does not contact the initial sealing surface of the hardened insert carrier to allow fluid flow through the valve assembly,
wherein the hardened insert carrier comprises a reciprocating element, a replaceable valve carrier (RVC), or a pump fluid end body, and
wherein the hardened insert comprises an extension, wherein the extension extends a distance in a direction perpendicular to a central axis of the valve assembly, wherein the extension retains another component of the valve assembly.