Liquid purification or separation – With repair or assembling means
Patent
1995-05-17
1996-09-17
Savage, Matthew O.
Liquid purification or separation
With repair or assembling means
210440, 210441, 210450, 210457, 2104932, 21049701, B01D 2700
Patent
active
055565425
ABSTRACT:
A snap-together, all-plastic filter assembly for filtering fluids includes a generally cylindrical injection molded plastic outer shell which has a closed base and an open opposite end and which defines a hollow interior which receives a filtering element and an integral injection molded plastic endplate/centertube member. The outer shell is injection molded with a pair of concentric, generally cylindrical, inner annular walls which are integral with the closed based and extend part way toward the open end of the outer shell. The filtering element which has a hollow interior fits down within the outermost of the two concentric annular walls and the centertube of the endplate/centertube member extends through the center of the filtering element and snaps in place by means of snap-fit projections which snap into snap-fit pockets disposed within the inner most of the two concentric annular walls. The filter assembly is designed as a spin-on filter and is threadedly engaged and positioned onto a mounting base thereby completing the fluid flow path. In related embodiments the filtering element is preassembled to the endplate/centertube member as a replaceable cartridge.
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Beach Donald W.
Berman Claude L.
Fleetguard Inc.
Savage Matthew O.
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