公开(公告)号：US11078903B2

公开(公告)日：2021-08-03

申请号：US16111754

申请日：2018-08-24

Applicant: Kerr Machine Co.

Inventor： Mark S. Nowell ,  Christopher Todd Barnett ,  Kelcy Jake Foster ,  Michael Eugene May ,  Michael Cole Thomas

IPC: F04B53/10 ,  F16K15/06 ,  F16K1/46 ,  F16K1/42 ,  F16K25/00

Abstract: A valve seat. The valve seat is used in a fluid end of a fracturing pump. The external surface of the valve seat has a tapered portion that retains the valve seat in the fluid end. The external surface also has a portion that is substantially cylindrical. A hardened insert is integrated into a strike face of the valve seat. The tapered portion is at a first end of the valve seat and the tapered portion is at a second end of the valve seat. The second end of the valve seat may be formed such that its exterior surface does not contact the fluid end.

公开(公告)号：US10941866B2

公开(公告)日：2021-03-09

申请号：US16374916

申请日：2019-04-04

Applicant: Kerr Machine Co.

Inventor： Mark S. Nowell ,  Michael Cole Thomas ,  Christopher Todd Barnett ,  Michael Eugene May ,  Kelcy Jake Foster

IPC: F16K1/38 ,  F16K21/04 ,  F16K15/06 ,  F04B53/16 ,  F04B53/10

Abstract: A stem-guided valve for use inside of a fluid end. The valve body is installed in a conduit that traverses the fluid end housing. A removable guide element is installed within a bore formed in the valve body. A static component that is interposed within the conduit includes an elongate projecting stem. As the stem reciprocates axially with the guide element, the valve is caused to move between open and closed positions. In its closed position, the valve body engages a valve seat that surrounds the conduit. A plurality of perforations are formed in the walls of the guide element, the perforations allow fluid to drain from the guide element during operation.

公开(公告)号：US20180073654A1

公开(公告)日：2018-03-15

申请号：US15702880

申请日：2017-09-13

Applicant: Kerr Machine Co.

Inventor： Mark S. Nowell ,  Kelcy Jake Foster ,  Michael Cole Thomas ,  Christopher Todd Barnett

IPC: F16K27/06

CPC classification number: F16K27/065 ,  F16K5/0471

Abstract: A replaceable sleeve disposed in a flow passage of a plug valve. The sleeve may be press fit or threaded into an annular recess formed in the flow passage. The sleeve may include a groove disposed about a site where the flow passage intersects the internal chamber. The sleeve may be replaced when worn without replacing the entire valve body.

公开(公告)号：US20170299096A1

公开(公告)日：2017-10-19

申请号：US15488713

申请日：2017-04-17

Applicant: Kerr Machine Co.

Inventor： Mark S. Nowell ,  Michael Eugene May ,  Kelcy Jake Foster ,  Michael Cole Thomas ,  Christopher Todd Barnett

IPC: F16L27/08

CPC classification number: F16L27/0828 ,  E21B17/05 ,  F16L55/07

Abstract: A high pressure swivel joint used in pipe assemblies transferring high pressure fluid. The swivel joint comprises a first pipe section and a sleeve-like second pipe section. The first pipe section is inserted into the second pipe section and the sections are relatively rotatable. A radial seal is seated in a groove formed in either the outer circumference of the first pipe section, or the inner circumference of the second pipe section. The groove is axially spaced from the location where the two pipe sections abut. Alternatively, a groove may be formed in both the outer circumference of the first pipe section and the inner circumference of the second pipe sections, the grooves both being axially spaced from the location where the two pipe sections abut. A radial seal may be inserted in both grooves and a wear ring positioned between the seals.