A draw latch retainer is used to secure a filter cartridge to a filter head. A cam actuated retainer extends from the head to engage a keeper in the top of the cartridge. Rotation of the cam draws the retainer and cartridge axially toward the head into an installed position. The retainer extends thr
A draw latch retainer is used to secure a filter cartridge to a filter head. A cam actuated retainer extends from the head to engage a keeper in the top of the cartridge. Rotation of the cam draws the retainer and cartridge axially toward the head into an installed position. The retainer extends through an aperture in the upper portion of the cartridge to apply a retention force against the bottom side of the keeper. The keeper and upper portion of the cartridge supporting the keeper are configured to transmit the retaining force laterally across the top of the cartridge. The keeper may be integral with a top plate enclosing an open end of the cartridge housing, or may be supported by the top plate.
대표청구항▼
1. A filter cartridge comprising: a housing defining a cavity and having a longitudinal axis extending through the center of said housing;filter media disposed in said housing and separating said cavity into an unfiltered region and a filtered region, said filter media constructed so that fluid pass
1. A filter cartridge comprising: a housing defining a cavity and having a longitudinal axis extending through the center of said housing;filter media disposed in said housing and separating said cavity into an unfiltered region and a filtered region, said filter media constructed so that fluid passes through the filter media to move between the unfiltered region and the filtered region;a plate spanning a first end of said housing and defining first and second openings for fluid flow passages, said fluid flow passages in communication with the unfiltered region and the filtered region, respectively, said plate having a first surface facing axially away from said cavity and a second surface facing said cavity, said plate supporting a keeper and defining a retainer receiving aperture adjacent said keeper, said longitudinal axis passes through said keeper, and said aperture is offset from said longitudinal axis,wherein said aperture permits access to said keeper from a location outside said cavity and said keeper is configured to receive a retention force directed toward said second surface and from a location within said cavity. 2. The filter cartridge of claim 1, wherein said keeper is integral with said top plate. 3. The filter cartridge of claim 1, wherein said cartridge housing comprises a generally cylindrical can with a lip adjacent said first end to define an opening occupied by said plate, said lip being deformed radially inwardly to retain said plate to said housing. 4. The filter cartridge of claim 1, wherein said plate includes a plurality of axially extending keys defining a compatibility matrix on the first end of said cartridge. 5. The filter cartridge of claim 3, comprising a key ring trapped by said lip against said plate, said key ring comprising a plurality of axially extending keys defining a compatibility matrix on the first end of said cartridge. 6. The filter cartridge of claim 3, comprising a plastic plate trapped by said lip against said plate, said plastic plate including at least one seal integral with the plastic plate and arranged to separate the fluid inlet flow path from the fluid outlet flow path. 7. The filter cartridge of claim 4, wherein said plurality of axially extending keys includes at least one key positioned on a diameter of said plate passing through said keeper and aperture. 8. The filter cartridge of claim 1, wherein said filter media comprises a first open end cap adjacent said plate and a second closed end cap adjacent the second end of said housing, said first end cap secured to said plate by at least one fastener to maintain the position of said filter media within said housing. 9. The filter cartridge of claim 1, wherein said keeper has a convex surface facing said cavity. 10. A filter assembly comprising: a head defining at least one fluid inlet and at least one fluid outlet communicating with a cartridge receptacle, said head including a retainer engaged with a shaft mounted eccentric, rotation of said shaft in a first direction withdraws the retainer toward the head and rotation of said shaft in a second direction extends the retainer from the head, said retainer including an arm extending from said eccentric to a distal end including at least one lateral projection;a filter cartridge including a housing, a filter element positioned within said housing having filter media arranged to separate an interior volume of said cartridge into unfiltered and filtered regions, fluid passing through said filter media to move from said unfiltered to said filtered region, and a plate spanning a first end of said housing and engaged thereto, said plate defining at least one cartridge inlet opening for a fluid inlet flow path in communication with said unfiltered region, at least one cartridge outlet opening for a fluid outlet flow path in communication with said filtered region, a retainer receiving aperture and a keeper adjacent said aperture;wherein said retainer extends through said aperture, said lateral projection engages said keeper and said shaft is rotated in said first direction to withdraw said retainer toward said head, applying a retention force to said keeper to secure said cartridge in said cartridge receptacle with said at least one fluid inlet in communication with said at least one fluid inlet flow path and said at least one fluid outlet in communication with said at least one fluid outlet flow path. 11. The filter assembly of claim 10, wherein said at least one lateral projection comprises a hook having a concave surface facing said head and said keeper comprises a convex surface facing said interior volume and complementary to said concave surface. 12. The filter assembly of claim 10, wherein said plate has a first surface facing said head, said plate first surface including at least one axially projecting key, said cartridge receptacle including a mating surface defining a recess complementary to said key, said key being received in said recess when cartridge is mounted to said head. 13. The filter assembly of claim 10, wherein said shaft is coupled with a valve, said valve closing upon rotation of said shaft in said second direction to release said cartridge and said valve opening when said shaft is rotated in said first direction to secure said cartridge to said head. 14. The filter assembly of claim 13, wherein said valve interrupts communication between said fluid inlet and said fluid inlet flow path, or between said fluid outlet and said fluid outlet flow path, or both.
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Ruprecht, John C., Canter element controlled combination manifold, valve and filter module system.
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