Element exchange type filter

Details Element exchange type filter Element exchange type filter

1996-12-24

1999-03-02

Savage, Matthew O.

Liquid purification or separation

Filter

Within flow line or flow line connected close casing

210450, 210453, 210DIG17, B01D 3530

Patent

active

058766006

ABSTRACT:
An engine oil filter has an upper cap and a lower case or plate, which are engageable with each other through a projecting portion and a groove portion. In one mode, the projecting portion is inserted into a first longitudinal groove wall and moved along a contact surface of a first skewed groove wall, whereby the cap and the case are moved and fitted together in an axial direction. As axial movement caused by relative rotation between the cap and the case takes place, an O-ring is tightly fitted therebetween at a fixed seal position. This engagement process applies no excessive force to the O-ring so that a sealed state of high reliability is provided.

REFERENCES:
patent: 3640390 (1972-02-01), Goy et al.
patent: 5114572 (1992-05-01), Hunter et al.
Morishita, "Oil Filter", Journal of Nippondenso Technical Disclosure, No. 102-008 of May 15, 1995.

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