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Multi-functional valve

  • US 5,139,050 A
  • Filed: 11/08/1991
  • Issued: 08/18/1992
  • Est. Priority Date: 07/09/1991
  • Status: Expired due to Fees
First Claim
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1. A multi-functional valve including a housing and piston member, and having a combined bypass, shut-off and inservice capability to be applied to a water treatment system, wherein:

  • a. said housing has a base member and a head portion;

    b. said base member includes a securing means for securing said valve to a cylinder;

    c. said cylinder forms a part of said water treatment system;

    d. said piston member includes a sealing mechanism capable of operably cooperating with said housing;

    e. said piston member has a shut-off position, a filtered position and an unfiltered position;

    f. said piston member is movable mounted within said housing;

    g. a lever is operably connected to said piston member;

    h. said lever is situated exterior in relation to said housing;

    i. said piston includes a wall;

    j. said sealing mechanism includes at least one member encircling said piston member and at least one member mounted in a groove in said wall; and

    k. said at least one member encircling said piston member has an encircling axis perpendicular to an axis of said groove in said wall.

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