Purolator Filters Na LLC

Arvin Technologies, Inc.

Mann+hummel Purolator Filters LLC

Purolator Products Na, LLC

L Steven Cline

Allen Buhr Wright

Rajan Ahuja

Henry L Neufeld

Travis Canup

Allen B Wright

Brian Glenn Yates

Timothy Alan Byrd

Ledu Quoc Nguyen

John W Wall

Theodore Michael Bryson

Bryant Lee Richie

Timothy A Byrd

Christopher Eichler

Jeremy J Ramsey

An anti-drainback valve contains a locking mechanism for securing the valve into to a filter assembly. The locking mechanism is made up of at least two keys that extend from the valve into beyond a cap of the filter assembly in order to secure the valve within the filter assembly. When multiple keys are employed, such keys may be equally spaced around the circumference of the cap. Manufacturing costs are kept minimal as minimal material is required and a two part mold may be employed during manufacturing.

Anti-drainback valve with position positive locking for spin-on oil and fuel filters

Static dissipaters for eliminating static electricity in fuel filter assemblies and fuel filter assemblies including static dissipaters are provided. The static dissipaters are in the form of a static dissipation sleeve that is disposed around the outside of a fuel pump within a fuel filter assembly. The static dissipation sleeve has one or more protrusion portions that protrude radially from the surface of the static dissipation sleeve and provide contacts for static dissipation of static electricity.

Static dissipater for a fuel filter assembly

A fluid filter is described, comprising a filter body defining a cavity for a filter element, a first end cap for fitting on one end of the filter body, having an integrated single piece anti drain back valve and seal, and a second end cap for fitting on an opposite end of the filter body, having an integrated two part relief valve and supports for the filter element, formed by a relief valve body and a relief valve disc.

Two part resilient combination bottom support and relief valve end seal assembly for fluid filters

A fluid filter has an outer case with a side wall, a closed first end wall, and a second end wall defining fluid inlet and outlet openings, as well as a filter cartridge received within the outer case. The filter cartridge includes a substantially cylindrical full flow filter element, providing for passage of a major portion of fluid entering the filter, and a substantially cylindrical bypass filter element, providing for passage of a minor portion of fluid entering the filter and disposed radially within and surrounded circumferentially by the full flow filter element. By way of the particular fluid filter configuration disclosed, a simple alternative to known filters having full flow and bypass filters located in common housings is provided.

Full flow liquid filter with integral bypass filtration

A fluid filter is described, having a filter body defining a cavity for a filter element, a first end cap for fitting on one end of the filter body, having an integrated single piece anti drain back valve and seal, and a second end cap for fitting on an opposite end of the filter body, having an integrated combination relief valve element that includes supports for the filter element.

Single piece resilient combination bottom support and relief valve end seal element for fluid filters

A fluid filter and an end cap of the fluid filter are described. The filter may be a spin on oil filter, which includes a combination dual valve element defining an integral anti-drain back valve and an integral relief valve, a retainer assembly for maintaining the combination dual valve element in position in the end cap, relative to the filter. The combination dual valve element includes an ADB sealing lip forming an anti-drain back valve portion, and an RV sealing lip forming a relief valve portion.

One piece combination anti-drain back and relief valve

A filter includes a housing having a cavity. A media pack, which includes a filter media, is arranged within the cavity and includes a central opening extending between opposing ends of the media pack. A center tube is arranged within the central opening and extends out of the central opening beyond one of the ends to provide a first end. A relief valve is supported on the first end. The filter cartridge assembly is installed into the housing with the relief valve in sealing engagement with a tapping plate of the housing. The relief valve performs the function of a seal between the filter cartridge assembly and the tapping plate in addition to performing pressure relief functions.

Filter relief valve and filter cartridge assembly seal

A filter is provided having a housing that includes a cavity. A center tube includes first and second ends spaced from one another. A seat extends radially from the center tube and is arranged between the first and second ends. A media pack is arranged within the cavity and supported on the seat such that the center tube extends through a central opening of the media pack. An anti-drainback valve is supported on the seat and is in sealing engagement with the center tube and the media pack. The housing includes a tapping plate that provides an inlet and outlet. An annular lip of the anti-drainback valve is in sealing engagement with the tapping plate when in a closed position in which the engine is shut off.

Filter anti-drainback valve and media pack seal

The present invention is directed to a no-leak drain pipe connector for a fluid filter which helps prevent the splashing of hot fluid on individuals performing filter element and oil changes.

Drain pipe connector for fluid filters

A filter media includes a media pack having a central opening that extends between opposing ends of the media pack. A support member, such as a center tube, extends through the central opening and supports one of the opposing ends. A second support member, such as a guide, is secured to the second support member and supports the other of the opposing ends. The guide loads the components within the filter to provide desired sealing. The guide is provided by flexible plastic tabs in one example and by an elastomeric grommet in another example.

Use of non-metallic load devices in liquid filters

A filter media includes a media pack having a central opening that extends between opposing ends of the media pack. A support member, such as a center tube, extends through the central opening and supports one of the opposing ends. A second support member, such as a filter cartridge assembly guide, is secured to the second support member and supports the other of the opposing ends. In one example, the center tube includes a seat that extends radially outwardly from an axially body of the center tube to support the media pack. The first and second support members are secured by an interlocking connection of any suitable configuration. The disclosed arrangement can be used to reduce the number of components required for providing a large number of filter cartridge assembly. Each of a plurality of media packs provide different heights. A first support member is selected to support one of the opposing ends. A second support member is selected to accommodate the height of the selected media pack. The first and second support members cooperate with one another to support the opposing ends of the media pack.

Height adjustable center tube and guide for a filter cartridge assembly

A delivery device for a chemical additive is provided for an oil filter. A carrier supporting a chemical additive is arranged within a central opening of a pleated filter media. The carrier interlocks with a center tube, also arranged within the central opening, that supports that filter media. The carrier includes fingers that axially and radially locate the carrier to prevent movement of the carrier within the filter.

Chemical additive carrier for filter

A filter apparatus comprises a filter element to be positioned in an interior region defined by a housing. The filter element comprises a quick-drain valve member to block a flow of fluid from the interior region through a quick-drain outlet defined by the housing when the filter element is positioned in the interior region and to allow a flow of fluid from the interior region through the quick-drain outlet when the filter element is removed from the interior region.

Quick-drain valve member for use with filter apparatus

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

A filter apparatus comprises a ring secured to a filter cover so as to engage a center tube extending within a filter element to retain the center tube and the filter element. A method of assembling a filter apparatus is also disclosed.

Growing community of inventors

Fayetteville, NC, United States of America

L Steven Cline