Fuel filter with keys

Details Fuel filter with keys Fuel filter with keys

2007-01-16

2007-01-16

Savage, Matthew O. (Department: 1724)

Liquid purification or separation

With repair or assembling means

C210S497010

Reexamination Certificate

active

11420138

ABSTRACT:
A filter element removeably located in a housing having a central valve structure. The element has an end cap with a valve actuating portion. The valve actuating portion includes a cylindrical portion and an annular base projecting radially inward from the cylindrical portion. The valve actuating portion includes a plurality of thin, flat keys spaced around the annular base and projecting radially inward from the cylindrical portion and axially outward from the base. The keys engage the valve structure in the housing when the element is installed, and open up a flow passage through the housing.

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Office Action for U.S. Appl. No. 10/824,916 entitled “Keyed Latch Valve for Fuel Filter”, dated Jun. 2, 2005.
International Search Report in corresponding PCT Application No. PCT/US00/31329.

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