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US 6,471,071 B1Granted
Universal grommet seal for spin-on type filters
AssigneeHoneywell International Inc.
InventorsMegan E. Shoaf, Richard J. Berkey
Life of this patent
Estimating the term…
Abstract
An improved sealing grommet for a spin-on type fluid filter has an annular flange coupled to an interior wall of the grommet body which sealingly engages filter adapter standpipes of varying diameters. An annular cavity, formed by the interior wall of the grommet body and the annular flange, allows pressurized fluid within the annular cavity to exert forces against the surface of the cavity to thereby enhance the sealing engagement between the filter element, the base plate and the filter adapter standpipe.
Claims8
A fluid filter assembly comprising:
- a base portion having a center port, said center port adapted to threadably engage a filter adapter standpipe;
- a filter element;
- and
- a grommet having a body portion and an annular flange, said body portion including an exterior surface having a conically shaped portion and a cylindrically shaped portion, a first end adjacent said conically shaped portion, a second end adjacent said cylindrically shaped portion, and a generally hollow interior, said annular flange coupled to an interior wall of said body portion, said annular flange extending radially inward of said body portion at an angle such that it depends away from said base portion and into a space defined by a longitudinal projection of said base portion center port so as to sealingly engage said filter adapter standpipe, said body portion and annular flange cooperating to form an annular interior cavity therebetween adjacent said second end;
- said first end sealingly engaging said base portion, and said second end sealingly engaging said filter element.
2 more elements
Dependencies are inferred from the claim text.