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    Magnetic filter
    33.
    发明授权
    Magnetic filter 失效
    磁性过滤器

    公开(公告)号：US3371790A

    公开(公告)日：1968-03-05

    申请号：US42520765

    申请日：1965-01-13

    Applicant: MARVEL ENG CO

    Inventor： KUDLATY WALTER J ,  LUCHETTA ROBERT N ,  SOCHOR ROBERT T

    IPC: B01D1/28 ,  B01D35/06 ,  B01D35/147 ,  B03C1/28

    CPC classification number: B03C1/288 ,  B01D1/28 ,  B01D35/06 ,  B01D35/147

    Abstract: 1,139,582. Magnetic filters. MARVEL ENG. CO. 13 Jan., 1966 [13 Jan., 1965], No. 46636/68. Divided out of 1139581. Heading B2J. The subject-matter of this specification is identical with that described in the parent specification but the claims are concerned with a permanent magnet element for use in a fluid filter or filter cartridge and comprising a number of permanent bare magnets axially assembled within the bore of a retaining tube with like poles of adjacent magnets contacting or spaced from and facing one another, the ends of the tube being closed.

    Filter
    35.
    发明授权
    Filter 失效

    公开(公告)号：US3342332A

    公开(公告)日：1967-09-19

    申请号：US35876164

    申请日：1964-04-10

    Applicant: MARVEL ENG CO

    Inventor： KUDLATY WALTER J

    IPC: B01D29/15 ,  B01D35/143 ,  B01D35/147

    CPC classification number: B01D35/147 ,  B01D29/15 ,  B01D29/58 ,  B01D35/143 ,  B01D2201/301

    Abstract: 1,109,241. Filter. MARVEL ENGINEERING CO. 9 April, 1965 [10 April, 1964], No. 15295/65. Heading B1D. A filter comprises a hollow paper filter element 16 contained within and fixed to a housing 1 such that there is a surrounding space between the element and the housing wall, an inlet 3 to the housing communicating directly with the said surrounding space and an outlet 2 communicating with the inside of the element, a valve 20 which opens into the element when the pressure in the surrounding space exceeds the pressure inside the element by a predetermined value so that liquid can bypass the filter wall of the element and pass into the element through the valve, and an indicator 29 which has fingers with portions located outside the housing which indicator is connected via rod 22 to valve 20 whereby an indication is provided when the valve is open and the liquid is being bypassed. The filter may also comprise cylindrical filter elements 9a and 9b, a magnetic extension of rod 22 into the element for retaining metal particles not retained by the filter elements, and a ring 32 movable 'by indicator 29 as the valve opens or an electrical switch activated by indicator 29 to operate visual or audible signals adjacent or remote from the filter housing as the valve opens.

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