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    Fluid end
    21.
    外观设计
    Fluid end 有权

    公开(公告)号：USD989916S1

    公开(公告)日：2023-06-20

    申请号：US29770886

    申请日：2021-02-17

    Applicant: Kerr Machine Co.

    Designer： Mark S. Nowell ,  Kelcy Jake Foster

    Abstract: FIG. 1 is a right side plan view of a fluid end of our new design;
    FIG. 2 is a front plan view thereof;
    FIG. 3 is a left side plan view thereof;
    FIG. 4 is a back view thereof;
    FIG. 5 is a bottom view thereof;
    FIG. 6 is a top view thereof;
    FIG. 7 is a front top right perspective view thereof; and,
    FIG. 8 is a top back left perspective view thereof.
    The dashed broken line elements are included for the purposes of illustrating portions of the fluid end for context and form no part of the claimed ornamental design.

    Modular gland arrangements for a fluid end assembly
    28.
    发明授权
    Modular gland arrangements for a fluid end assembly 有权

    公开(公告)号：US11441424B2

    公开(公告)日：2022-09-13

    申请号：US17166707

    申请日：2021-02-03

    Applicant: Kerr Machine Co.

    Inventor： Kelcy Jake Foster

    IPC: F04B53/22 ,  F01B3/00 ,  F16K5/02 ,  E21B43/26 ,  F16K3/24

    Abstract: A closure element for a fluid end assembly that has two or more recessed grooves formed in its outer surface. The grooves are axially offset. A seal is placed in one and only one of the grooves. As wear occurs, the seal is relocated to one of the other grooves. Instead of a series of axially offset grooves in a single closure element, a kit may be formed from two or more otherwise identical closure elements, each with a single recessed groove at a different axial position. Another closure element has a series of ledge-like surfaces defining spaces within which a seal may be received. One outer surface surrounds one or more of the other surfaces. A seal is placed in one and only one of the spaces. As wear occurs, the seal is relocated to one of the other spaces.

    FLUID END WITH CLAMPED RETENTION
    29.
    发明申请
    FLUID END WITH CLAMPED RETENTION 有权

    公开(公告)号：US20220282720A1

    公开(公告)日：2022-09-08

    申请号：US17685936

    申请日：2022-03-03

    Applicant: Kerr Machine Co.

    Inventor： Kelcy Jake Foster ,  Micheal Cole Thomas ,  Christopher Todd Barnett

    IPC: F04B39/12 ,  F16L23/08 ,  F16L23/22 ,  F04B27/00

    Abstract: A fluid end assembly comprising a plurality of fluid end sections positioned in a side-by-side relationship. Each section comprises a housing containing a reciprocating plunger. One and only one packing seal is installed within the housing and surrounds and engages an outer surface of the plunger. A retainer compresses and holds the packing seal within the housing. The retainer is secured to the housing using a clamp, such that no threads are formed in the housing of the fluid end section and no threads are formed in the retainer.

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