Liquid purification or separation – With repair or assembling means
Patent
1997-08-22
2000-04-11
Savage, Matthew O.
Liquid purification or separation
With repair or assembling means
210438, 210440, 210444, B01D 3530
Patent
active
060484551
ABSTRACT:
A filter assembly including a base and a disposable filter cartridge. The container of the filter cartridge has a top portion of an upper section that is received in the base and which may deform into engagement with the interior receiving surface of the base when exposed to the fuel system operating pressure. A plurality of longitudinally extending keys or protrusions protrude from the bottom surface of the base. The protrusions are selectively dimensioned and positioned to provide a unique protrusion matrix for a given filter capacity, filtering quality or filtering parameter. The protrusions form corresponding depressions in the top portion of the upper section when the fuel system is operating, locking the top portion of the upper section to the base. The base structure supports the upper section of the cartridge, controlling the extent of deformation of the upper section.
REFERENCES:
patent: 2888141 (1959-05-01), Coates et al.
patent: 3727764 (1973-04-01), Ogden
patent: 4818396 (1989-04-01), Wolf
patent: 4857195 (1989-08-01), Brownell et al.
patent: 5837137 (1998-11-01), Janik
Savage Matthew O.
Stanadyne Automotive Corp.
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