Anti-drain back/pressure relieved filter cartridges

Details Anti-drain back/pressure relieved filter cartridges Anti-drain back/pressure relieved filter cartridges

1996-05-23

1998-11-10

Savage, Matthew O.

Liquid purification or separation

Flow, fluid pressure or material level, responsive

Fluid pressure responsive by-pass

210136, 210429, 210430, B01D 35147

Patent

active

058338438

ABSTRACT:
A spin-on filter including a combination anti-drainback and bypass valve is disclosed herein. The valve includes an annular valve support disposed between a filter element and an end plate of the filter. The valve support has an inner sleeve portion which seats about a central outlet of the end plate and an outer sleeve portion with holes therethrough. The valve member has an expandable collar portion which normally seals the bypass holes and functions as a bypass valve and a skirt portion with normally seals the inlet holes in the end plate and functions as an anti-drainback valve. The valve member is preferably made of a low swell silicone material which requires higher oil pressures to bypass the filter at low starting oil temperatures than at higher operating oil temperatures.

REFERENCES:
patent: 2092162 (1959-09-01), Humbert, Jr. et al.
patent: 2183616 (1939-12-01), Korte
patent: 2937756 (1960-05-01), Humbert, Jr.
patent: 3132097 (1964-05-01), Tietz
patent: 3231089 (1966-01-01), Thornton
patent: 3235085 (1966-02-01), Humbert, Jr.
patent: 3243045 (1966-03-01), Tietz
patent: 3305095 (1967-02-01), Hathaway
patent: 3332554 (1967-07-01), Humbert, Jr.
patent: 3529722 (1970-09-01), Humbert, Jr.
patent: 3557957 (1971-01-01), Baldwin
patent: 3567023 (1971-03-01), Buckman et al.
patent: 3785491 (1974-01-01), Dudinec et al.
patent: 4144168 (1979-03-01), Thornton
patent: 4732678 (1988-03-01), Humbert, Jr.
patent: 4872976 (1989-10-01), Cudaback
patent: 5284579 (1994-02-01), Covington
patent: 5405527 (1995-04-01), Covington

Affiliated with

Also associated with

Rating

Anti-drain back/pressure relieved filter cartridges does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Anti-drain back/pressure relieved filter cartridges, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Anti-drain back/pressure relieved filter cartridges will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1513197