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    Fluid End
    61.
    发明申请
    Fluid End 审中-公开

    公开(公告)号：US20200182240A1

    公开(公告)日：2020-06-11

    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 ,  F16J15/08

    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.

    Stem Guided Valve
    63.
    发明申请
    Stem Guided Valve 审中-公开

    公开(公告)号：US20190309858A1

    公开(公告)日：2019-10-10

    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

    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.

    High Pressure Swivel Joint
    64.
    发明申请
    High Pressure Swivel Joint 审中-公开

    公开(公告)号：US20190137019A1

    公开(公告)日：2019-05-09

    申请号：US16129171

    申请日：2018-09-12

    Applicant: Kerr Machine Co.

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

    IPC: F16L27/08 ,  F16L21/02

    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 wear ring is positioned within a recess formed in the inner wall of the first pipe section. A second wear ring is positioned within a recess formed in the inner wall of the second pipe section.

    Fluid End Valve With Dual Inserts
    65.
    发明申请
    Fluid End Valve With Dual Inserts 审中-公开

    公开(公告)号：US20190120389A1

    公开(公告)日：2019-04-25

    申请号：US16169663

    申请日：2018-10-24

    Applicant: Kerr Machine Co.

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

    IPC: F16K1/44 ,  F16K1/38 ,  F16K1/42 ,  F16K27/02 ,  F04B53/10

    Abstract: A valve for use in a fluid end. The valve has a solid body with a sealing surface. The valve may move into a position wherein the valve when contacts a valve seat. When in contact, the sealing surfaces prevent flow of fluid through the valve. The sealing surface has three regions. The outer region has an elastomeric seal insert disposed on the surface. The inner region has a shock absorbing insert disposed on the surface. Intermediate these inserts is a metallic surface for metal-to-metal sealing with the valve seat.

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