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：US10941765B2

公开(公告)日：2021-03-09

申请号：US16708773

申请日：2019-12-10

Applicant: Kerr Machine Co.

Inventor： Mark S. Nowell ,  Kelcy J. Foster ,  Christopher Todd Barnett ,  Brandon Scott Ayres ,  Michael Eugene May ,  Guy J. Lapointe ,  Micheal Cole Thomas

IPC: F04B53/16 ,  E21B43/26 ,  F04B37/12 ,  F04B53/00 ,  F04B53/22

Abstract: A flangeless fluid end comprising a fluid end body releasably attached to a connect plate. The connect plate is attached to a power source using stay rods. The flow bores of the fluid end are sealed without threading a retainer nut into the walls of each bore. Instead, the flow bores are sealed by bolting a retainer to the fluid end body. Plungers to drive fluid through the fluid end body are installed within removable stuffing box sleeves. These sleeves are maintained within the plunger bores by the bolted retainers. A number of features, including the location of seals within bore walls and carbide inserts within valve structures, aid in reducing or transferring wear.

公开(公告)号：US20210025519A1

公开(公告)日：2021-01-28

申请号：US17068126

申请日：2020-10-12

Applicant: Kerr Machine Co.

Inventor： Mark S. Nowell ,  Micheal Cole Thomas ,  Christopher Todd Barnett ,  Brandon Stephen Nowell

IPC: F16K41/16 ,  F16K11/085 ,  F16K1/48

Abstract: A plug valve having a modular construction. The valve has a solid, single-piece body with two opposed openings interrupted by an internal chamber. The chamber houses a rotatable plug which selectively restricts or allows flow from one of the two openings to the other. Inserts partially surround the plug and have openings that corresponds to openings in the valve body and the plug. A seat with an end surface corresponding to each insert extends partially within each opening. A bolted-on flange extends from each side of the valve and has an internally placed sleeve which defines the flow path through the valve. The sleeve may seal against the seat at one of its ends. A non-planar groove may be formed in the end surface of each seat to seal the opening against each insert.

公开(公告)号：US20200284253A1

公开(公告)日：2020-09-10

申请号：US16876414

申请日：2020-05-18

Applicant: Kerr Machine Co.

Inventor： Kelcy Jake Foster ,  Mark S. Nowell ,  Brandon Scott Ayres ,  Christopher Todd Barnett

IPC: F04B53/22 ,  F04B53/16 ,  F04B1/122 ,  F04B1/16 ,  F04B1/145 ,  F16B35/00 ,  F16B39/24 ,  F16B43/00 ,  F04B1/18 ,  F04B1/0408 ,  F04B1/0421

Abstract: A fluid end having its fluid flow bores sealed without threading a retaining nut into the walls of each bore. The fluid ends may be assembled using a plurality of different kits that each comprise a fluid end body, a component, a retainer element, and a fastening system. The retainer element holds the component within each of the bores formed in the fluid end body and the fastening system secures the retainer element to the body. The fastening system comprises a plurality of externally threaded studs, washers and nuts in some embodiments. In other embodiments, the fastening system comprises a plurality of screws.

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.