Filter assembly
    1.
    发明授权

    公开(公告)号:US11534705B2

    公开(公告)日:2022-12-27

    申请号:US16319285

    申请日:2017-07-19

    Inventor: David Cupit

    Abstract: A filter assembly comprises a fluid inlet, a fluid outlet and a filter medium for receipt of fluid from the fluid inlet and for supplying filtered fluid to the fluid outlet, the filter medium being located between the fluid inlet and the fluid outlet. The assembly further comprises pressure-limiting means, such as a pressure-relieving valve, located between the fluid inlet and the filter medium.

    Shut-off valve
    2.
    发明授权

    公开(公告)号:US11435004B2

    公开(公告)日:2022-09-06

    申请号:US16341421

    申请日:2017-10-10

    Inventor: David Cupit

    Abstract: A shut-off valve (10) comprises a valve housing (12, 14) having a valve inlet (28), a valve outlet (30), a fluid flow channel (32) extending between the valve inlet and the valve outlet, a valve closure member (34) displaceable into the fluid flow channel to prevent fluid flow through the flow channel and a volume within the housing for receiving a compressed absorbent body (42) which expands when in contact with liquid. The compressed absorbent body (42) is configured to displace the valve closure member (34) into the fluid flow channel (32) when expanded, and the housing (12, 14) comprises a closable aperture (52) which allows access to the volume for replacing the absorbent body.

    Filters
    3.
    发明授权
    Filters 有权

    公开(公告)号:US11291933B2

    公开(公告)日:2022-04-05

    申请号:US16532326

    申请日:2019-08-05

    Inventor: David Cupit

    Abstract: A filter insert (10) comprising: a body portion (12) and a closed-ended tube (14), an open end of which is sealingly affixed around the periphery of the body portion (12); an inlet aperture (16) and an outlet aperture (18) each aperture communicating via a through hole in the body portion (12) with the interior of the tube (14); a filter medium (20) located within the tube (14) and being sealingly interposed between the inlet aperture (16) and the outlet aperture (18), wherein the tube (14) is at least partially manufactured of a flexible plastics material, and wherein the body portion (12) is relatively rigid.

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