Arvin Technologies, Inc.

Purolator Filters Na LLC

Timothy Alan Byrd

L Steven Cline

Allen Buhr Wright

Allen B Wright

A fluid filter apparatus includes a filter element located in a filter chamber formed in a filter housing. A valve unit is located in a passageway formed in the filter housing to control flow of fluid into or out of the filter chamber.

Fluid filter apparatus

An oil filter assembly comprising: an oil filter housing defining an oil filter chamber adapted to receive an oil filter element, the oil filter housing also defining a port; and a valve assembly received within the port, the valve assembly having a closed position and an open position for draining the chamber of oil associated with the oil filter element, the valve assembly comprising a spring, a valve and a casing disposed about the spring and the plunger. The casing may include a substantially annular lip retaining the valve in engagement with the casing. The casing defines a casing chamber and the lip retaining a collar of the valve within the casing chamber. The lip also may define a hole for receiving the stem or, in accordance with an alternative embodiment, for receiving a post or the like associated with the oil filter element. A method is also provided of producing an oil filter assembly having a housing defining an oil filter chamber adapted to receive an oil filter element. The method comprises the steps of: disposing a casing about a spring and a valve; forming a lip on a leading edge of the casing for retaining the valve in engagement with the casing; and inserting the casing into a port defined by the housing.

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Fayetteville, NC, United States of America

Timothy Alan Byrd