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    发明授权
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    公开(公告)号：US3231089A

    公开(公告)日：1966-01-25

    申请号：US25370063

    申请日：1963-01-24

    Applicant: FRAM CORP

    Inventor： THORNTON DONALD I

    IPC: B01D27/08 ,  B01D27/10 ,  B01D46/00 ,  B01D46/24

    CPC classification number: B01D27/10 ,  B01D27/08 ,  B01D27/103 ,  B01D27/106 ,  B01D46/0089 ,  B01D46/2411 ,  B01D2271/02 ,  Y10S210/17 ,  Y10T137/7843 ,  Y10T137/7861 ,  Y10T137/7895

    Abstract: 1,045,288. Filters. FRAM CORPORATION. Aug. 14, 1963 [Jan. 24, 1963], No.32173/63. Headings B1D and B1T. In a screw-on, throw-away filter, a cylindrical filter element 17, Fig. 1, is forced by a spring bridge-member 29 into engagement with a resilient annular gasket supported on a flange 28 of a ring 24, (see also Fig. 2), the latter in turn being supported (with intervening gasket) on a reinforcing plate 12. The annular gasket has an outer annulus 20 constituting, with plate 12, an anti-drain valve; unfiltered liquid (e.g. oil) entering at 16 with sufficient pressure raises the annulus 20 and fills the housing 10 to flow inwardly through the element 17. Filtered oil flows downward inside a perforate centre tube 19 and out at 15. The annular gasket also has an inner annulus 21 which forms, with holes in a horizontal portion 26 of ring 24, an excess-pressure by-pass-valve, the annulus 21 being raised by incoming oil, when the filter element is clogged, to permit unfiltered oil to pass out at 15. Filtering of compressed air to remove dirt and water or oil therefrom is also mentioned.

    Filter with relief and check valves
    2.
    发明授权
    Filter with relief and check valves 失效
    过滤器与安全阀和检查阀

    公开(公告)号：US3567022A

    公开(公告)日：1971-03-02

    申请号：US3567022D

    申请日：1969-05-26

    Applicant: FRAM CORP

    Inventor： THORNTON DONALD I ,  YEO EARL S ,  MAHDESYAN MARTIN

    IPC: B01D27/10 ,  B01D35/14

    CPC classification number: B01D27/103 ,  B01D27/106

    Abstract: Relief valve in a filter, with a seating surface adjacent an opening in the valve seat, and a flexible valve member having a portion fixed and sealed relative to the seat on the side of the opening opposite the seating surface, the flexible member being resiliently biased against the seating surface at its free portion.

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