Control box for a displacement pump

    公开(公告)号:USD1006830S1

    公开(公告)日:2023-12-05

    申请号:US29826431

    申请日:2022-02-11

    Abstract: FIG. 1 is a first isometric view of a control box for a displacement pump;
    FIG. 2 is a second isometric view of the control box;
    FIG. 3 is a third isometric view of the control box;
    FIG. 4 is a fourth isometric view of the control box;
    FIG. 5 is a top plan view of the control box;
    FIG. 6 is a bottom plan view of the control box;
    FIG. 7 is a front elevational view of the control box;
    FIG. 8 is a left side view of the control box; and,
    FIG. 9 is a right side view of the control box.
    The broken lines in the Figures are represent portions of a control box for a displacement pump and of a displacement pump and form no part of the claimed design.

    Check valve ball stop having gasket compression stand off

    公开(公告)号:US11079033B2

    公开(公告)日:2021-08-03

    申请号:US16807396

    申请日:2020-03-03

    Abstract: This disclosure concerns a check valve that prevents over compression of a gasket. The check valve comprises a valve housing, a valve cover, and a gasket that seals between the valve housing and the valve cover. A ball fits within the valve housing. The check valve further comprises a ball stop that limits compression of the gasket as the valve cover is tightened with respect to the valve housing. The ball stop serves as a standoff between the valve housing and the valve cover that allows some compression of the gasket as the valve cover is tightened with respect to the valve housing, but at some degree of tightening the incompressible engages both the valve cover and the valve housing to prevent further tightening. Over-compression distorts the gaskets, possibly compromising its sealing function and possibly damaging the gasket.

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