US 11,655,900 B2
Valve with pressure differential seating
Bob McGuire, Meridian, OK (US); Danny L. Artherholt, Asher, OK (US); Mickey Claxton, Oklahoma City, OK (US); and Blake Mullins, Edmond, OK (US)
Assigned to Oil States Energy Services, L.L.C., Houston, TX (US)
Filed by OIL STATES ENERGY SERVICES, L.L.C., Houston, TX (US)
Filed on Aug. 7, 2020, as Appl. No. 16/988,283.
Application 16/988,283 is a continuation in part of application No. 16/663,077, filed on Oct. 24, 2019, granted, now 11,028,929.
Claims priority of provisional application 62/754,081, filed on Nov. 1, 2018.
Prior Publication US 2020/0370658 A1, Nov. 26, 2020
This patent is subject to a terminal disclaimer.
Int. Cl. F16K 3/02 (2006.01); F16K 5/06 (2006.01); F16K 3/20 (2006.01); F16K 5/18 (2006.01); F16K 5/20 (2006.01); F16K 5/04 (2006.01)
CPC F16K 3/0236 (2013.01) [F16K 3/207 (2013.01); F16K 5/0471 (2013.01); F16K 5/0689 (2013.01); F16K 5/188 (2013.01); F16K 5/205 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A valve comprising:
a valve body comprising a cavity, an interior bore with a central longitudinal axis, and a radially projecting shoulder;
a flow barrier disposed within said cavity and operable to move between an open position in which the interior bore of the valve body is unobstructed and a closed position in which the flow barrier obstructs the interior bore;
a removable bore-end connection connected to the valve body;
a seat comprising a first axial surface adjacent to said interior bore, a first radial surface adjacent to said flow barrier and a second radial surface, the second radial surface being larger than the first radial surface, said seat disposed between the flow barrier and the removable bore-end connection, such that it does not contact the radially projecting shoulder of the valve body.