Baldwin Filters, Inc.

Jeffrey E Rogers

Gene W Brown

Kristopher W Lepine

Russell D Ridgway

Wilhelm A Perleberg

A filter assembly and filter element are provided. The filter assembly includes a housing with a filter element disposed therein. The filter assembly also includes a separate and removable inlet tube which projects from an interior of the housing to an exterior of the housing through an opening in a lid of the housing. The filter element includes a ring of filter media with upper and lower end cap constructions attached to opposed ends of the ring of filter media. The upper end cap construction includes a base portion and an axial seal portion extending axially from the base portion. The lower end cap construction includes a support ring and a resilient portion.

Air filter and inlet tube assembly

Filter element

A housing system for a removable filter cartridge in an automotive lubrication system. The housing is formed of a thin-walled sheet metal drawn cylinder, with end removed, to form an elongated cylinder with both ends open. A base end has a formed metallic base secured therein by a rolled flange in the sheet metal housing. A closure end has a formed threaded ring secured to the end thereof by another rolled and swaged connection between the sheet metal and formed ring. In the preferred embodiment, the base carries permanent center tubes, and the filter cartridge is of unsupported construction, containing no metallic supports, and adapted to be disposed of in an environmentally acceptable manner.

Oil filter housing

A filter system using a filter cartridge adapted for disposal in an environmentally acceptable manner. The filter cartridge has no metal parts, and thus avoids the use of a metal center tube, or a center tube of any configuration. The housing itself carries a permanent center tube. A sealing arrangement formed between the filter cartridge and the housing provides a radial seal isolating the outer periphery of the filter cartridge from the remainder thereof. Filter and caps are in the lower pressure downstream zone, and thus any axial forces imposed on the filter place the filter media in tension to avoid the imposition of crushing loads on the unsupported filter.

Filter system with environmentally friendly filter cartridge

A filter cartridge for use in a filter system, in which the cartridge has no structural metal or plastic parts and is adapted for environmentally acceptable disposal. A pleated paper filter media is formed into a cylinder, and potted end caps at the axial ends of the cylinder hold the shape of the filter. Sealing gaskets are associated with the end caps. At least one side has a radial seal formed at the outer periphery of the filter cartridge to protect the associated end cap from higher a pressure region found at the outer periphery. The other axial end can have a similar radial filter in some applications, or in other applications, where flow at that end of the filter is not desired, can utilize an axial seal specially configured to protect the associated end cap from higher pressure at the outer periphery. Maintenance of lower pressure at the respective end caps places any axial loads on the filter in tension, and thereby prevents the application of axial crushing loads on the filter cartridge.

Environmentally friendly filter cartridge

A drain/fill/sensor port for use in fuel filters and a method for making the same. The port comprises a ferrule attached to a sheet metal shell which is formed with a domed end portion having a central aperture. The ferrule includes four angularly spaced slots adapted to receive and interlock with tabs spaced angularly around the aperture in order to fasten the ferrule securely to the shell.

Growing community of inventors

Kearney, NE, United States of America

Jeffrey E Rogers