Abstract: An oil filter assembly includes a filter housing and a release valve for regulating oil drainage from a filter chamber in the filter housing. A filter module is arranged in the filter chamber to engage the release valve. A first biasing element normally moves the release valve to an opened position allowing drainage of oil from the filter chamber to urge the filter module to cause the release valve to move against and overcome a biasing force generated by the first biasing element to the closed position when the filter module is installed in a oil-filtering position in the filter housing.

Abstract: A method of attaching a fuel line to a fuel filter is disclosed herein.

Abstract: A connection for attaching a fuel line to a fuel filter having a tubular coupling base affixed to a filter and having an intermediate portion providing wrench fiats, one end being connected with a fuel line, the coupling base being further defined by an annular surface adjacent the wrench flats forming a shoulder surface and an annular reduced diameter groove in the annular surface; a bracket of thin, stiff material having an opening therein receiving the coupling base annular surface, an inner surface of the bracket engaging the coupling base shoulder surface, the bracket having a fuel line receiving notch; a retaining ring positioned in the coupling base groove to engage the bracket and thereby secure the bracket to the coupling base; and protrusions in the bracket adjacent the opening providing an interfering relationship between the bracket and the coupling base shoulder surface to resist rotation of the bracket relative to the coupling base when the retaining ring is in position in the coupling base groo

Abstract: An air filter device. The device includes a flat, closed top and an axially aligned open base larger in diameter than the top. Frusto conical filter media extends between the top and the base, the filter media having an axis aligned with the top and the base. An axially aligned, inverted cone extends from the flat, closed top toward the base.