US 11,852,127 B2
Retainer assembly for pump and methods
James A. Barnhouse, Jr., Spring, TX (US); Daryl J. Belshan, Weatherford, TX (US); Jacob Brown, Waller, TX (US); and Henry Do, Spring, TX (US)
Assigned to SPM Oil & Gas Inc., Fort Worth, TX (US)
Filed by SPM Oil & Gas Inc., Fort Worth, TX (US)
Filed on Jan. 27, 2022, as Appl. No. 17/586,266.
Prior Publication US 2023/0235730 A1, Jul. 27, 2023
Int. Cl. F04B 53/22 (2006.01); F04B 39/12 (2006.01); F04B 19/00 (2006.01); F04B 53/10 (2006.01)
CPC F04B 39/12 (2013.01) [F04B 19/00 (2013.01); F04B 53/10 (2013.01); F04B 53/22 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A retainer assembly and a plug for a fluid end of a pump system, comprising:
a retainer body;
a plurality of tongues movably arranged about and in contact with the retainer body,
each of the plurality of tongues being movable between a pre-installed configuration and an installed configuration depending on a position of the retainer body relative to the plurality of tongues,
a first tongue, of the plurality of tongues, including an engaging flange and a first passage,
a second tongue, of the plurality of tongues, including a second passage,
the plurality of tongues being movable between the pre-installed configuration defining a first diameter configured to permit the retainer assembly to be inserted into a bore of the fluid end and the installed configuration defining a second diameter, and
the second diameter being larger than the first diameter;
a rod disposed in the first passage and the second passage to interconnect the first tongue to the second tongue; and
the plug,
the plug being shaped and sized to sealingly fit to the bore of the fluid end inboard of the retainer assembly.