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Filter assembly having quick connect/disconnect sealing valve means

  • US 5,611,923 A
  • Filed: 07/12/1995
  • Issued: 03/18/1997
  • Est. Priority Date: 07/12/1995
  • Status: Expired due to Term
First Claim
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1. A filter assembly comprising a filter element and a housing for supporting said filter element, the filter assembly having a first quick connect/disconnect sealing valve means operatively connected to an inlet passageway in the housing and a second quick connect/disconnect sealing valve means operatively connected to an outlet passageway in the housing wherein the filter assembly is easily connected and disconnected from a fluid circulation system;

  • each quick connect/disconnect sealing valve means comprising a valve portion in communication with a locking portion, the valve portion and the locking portion being axially moveable relative to each other between a connect position and a disconnect position without need to circumferentially rotate either the valve portion or the locking portion relative to one another;

    the valve portion defining a passageway having a valve seat axially moveable between open and closed positions, the valve seat being biased to the closed position when no fluid is flowing through the filter assembly, the valve portion further having at least one engaging member angularly disposed with an annular recess within the passageway in the valve portion for removably engaging the locking portion; and

    ,the locking portion comprising a locking means having a cam surface having a leading edge adjacent a trailing edge, wherein the leading edge contacts the engaging member of the valve portion when the locking portion is moved into communication with the valve portion; and

    , unlocking means for disengaging said engaging member to allow the locking portion to be disconnected from the valve portion.

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