Schroeder Industries, LLC

Hydac Filtertechnik Gmbh

Alco Industries, Inc.

Steven R Evanovich

Michael J Schmitt

Andreas Schunk

Alexander D Kiderman

Alfred L Baum

Christopher B Bortnik

Scott F Surdick

Justin Dow

Joseph Francis Ickes

Chris Bortnik

Augustus O Schroeder

Martin Bauer

John Kazimierz Duchowski

Michael Otto Sakraschinsky

Eric M Lombardo

Norbert Friedrich Karl Sann

Robert E Stupak

James Dennis Funk

Benjamin Chan

Alan R Bost

Robert B Murad

Russell Olmsted

Stevan Karanovich

Steve Smith

A coalescing filter element provides an integrated filter element with a three stage design with a hydrophobic or hydrophilic coalescing layer. A coalescing filter element comprises: a) At least one particulate filtration layer; b) A coalescing layer promoting coalescing of water particles, wherein the coalescing layer is downstream of the at least one particulate filtration layer relative to the flow of fluid through the element; c) An annular coalescing space downstream of the coalescing layer; d) A sump in a lower portion of the filter element in fluid communication with the annular coalescing space; and e) A hydrophobic layer downstream of the annular coalescing space, wherein fluid being cleaned by the element flows through the hydrophobic layer. The coalescing layer may be a hydrophobic or a hydrophilic coalescing layer. A filter assembly will include the coalescing filter element of the present invention.

Coalescing filter element and filter assembly therefore

A high throughput, positive pressure, gravity operated dewatering system for hydraulic fluids, lubricating fluids, and petroleum based fluids comprises a gravity operated dewatering chamber receiving the industrial fluid and a source of positive pressure drying air coupled to the dewatering chamber.

Method of dewatering hydraulic, lubricating and petroleum based fluids using a positive pressure drying gas in a gravity operated, mobile, dewatering system

A hydraulic filter includes a canister extending along the longitudinal axis. A closed end cap is at one end of the canister for closing one end thereof. A removable filter element is contained within the canister and a modular one-piece input end cap is at an end of the canister. The one-piece input end cap includes a hydraulic input chamber and a hydraulic output chamber which can be positioned in any one of three mutually perpendicular directions. The one-piece input end cap also allows for sensors to be positioned in any one of three mutually perpendicular directions. In addition, the one-piece input end cap can be utilized in base-ported or top-ported configurations while also allowing for side-to-side or side-to-end configurations.

Hydraulic filter with one-piece input end cap

Positive pressure, conditioned drying gas, gravity operated, mobile, dewatering system for hydraulic, lubricating and petroleum based fluids

A replaceable inside out flow filter element comprises an annular filter media structure; an upper end cap attached one end of the media structure; a lower end cap attached to an opposed end of the media structure, with an inner annular bypass mounting sidewall formed on the lower end cap; a bypass valve assembly secured to the inner annular bypass mounting sidewall and configured to communicate with the radial inner side of the annular filter media structure; and an annular bypass shield tube coupled to the bypass mounting sidewall and extending above the bypass valve assembly toward the upper end cap, wherein the inner annular bypass mounting sidewall and the annular bypass shield tube combine with the radial inner side of the media structure to define an annular particulate receiving area that extends about at least &#xbd; of the length of the media structure from the lower end cap.

Replacable filter element with shielded bottom bypass valve

Transmission flushing assembly

Inner sealing member of coupling bushing for replaceable filter

Filtration system incorporating modular one-piece end caps

Coupling bushing for a replaceable filter

Connecting end cap for a filter

High flow filter assembly

Filter assembly

The replaceable, outside-in flow filter element with integral annular trap provides a simple, efficient, tubular filter element that combines the advantages of inside out-flow and outside-in flow filters. The element includes end caps with pleated filter media extending there between. A solid tube is secured between the end caps in a position spaced radially outward from the media. The annular space between the media and the tube forms an integral, lateral, outer trap for containing filtered out particulate matter. The trap allows the particulate to be removed with the used filter element during conventional replacement. The inlet end cap includes openings spaced from an end of the filter media whereby a portion of the openings overlap the media in plan view such that inflow through this overlapping portion of the openings will flow radial outward in the space between the openings and the filter media to the annular space.

Replaceable filter element with integral annular trap

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Pittsburgh, PA, United States of America

Steven R Evanovich