Schroeder Industries, LLC

Hydac Filtertechnik Gmbh

Scott F Surdick

Michael J Schmitt

Christopher B Bortnik

Steven R Evanovich

Andreas Schunk

Chris Bortnik

Matt Adams

Augustus O Schroeder

Andrew Seitz

David L Cowder

Michael Limbacher

Trevor Jaworski

Michale J Schmitt

A spin-on filter assembly with replaceable coreless element comprises: a reusable spin-on housing including a filter bowl having sealing structure on a bottom of the filter bowl and a sealing structure on a top of the filter bowl; a center support tube integral with the filter bowl and including a perforated tube and an upper portion having an threaded coupling allowing for the filter assembly to threaded into position and an exterior sealing structure; and a replaceable coreless filter element mounted on the central support tube within the filter bowl and having filter media, a lower sealing structure configured to engage with the sealing structure on the bottom of the filter bowl and an upper sealing structure configured to engage with the exterior sealing structure on the center support tube.

Spin-on filter assembly with replaceable coreless element

An in-tank filter assembly for an industrial fluid reservoir tank includes a filter assembly mount with tank coupling elements to secure the assembly mount to a tank, and wherein the mount includes an inlet connection configured to be coupled to an inlet line of the tank; a bypass structure configured to selectively open allowing flow to flow around the filter element into the tank in bypass operation; and a disposable filter element including at least a top end cap and a bottom end cap with filter media extending between the top end cap and a lower end cap, wherein the filter assembly forms a bowl-less in tank return line filter having inside-out flow.

Return line in-tank filter assembly with disposable filter element

An in-tank filter assembly for an industrial fluid reservoir tank includes a two piece filter assembly mount comprising an upper filter mount and a lower tank extension member; an element and bypass plate; a bypass structure within the element and bypass plate; a filter element mount coupled to the element and bypass plate; the disposable filter element removably coupled to the filter element mount, wherein the filter assembly forms a bowl-less in tank return line filter having inside-out flow; and an inlet closing valve configured to selectively close off the inlet and biased toward a closed position, wherein the inlet closing valve is configured to automatically close off the inlet when the disposable filter element is removed from the filter element mount.

A sump space unit for dewatering fuel in an underground fuel storage tank includes fuel filtration, coalescing, and water separation with water storage. The system includes a) a housing configured to be placed within a fuel delivery sump space above an underground fuel storage tank; b) A particulate media element within the housing; c) A coalescing media element within the housing; d) A water separation media element within the housing; and e) A water/fuel storage area within the housing. In one operational mode the flow is directed through at least one of the particulate media element, the coalescing media element and the water separation media element. In one operational mode the system receives water from the underground storage tank into the housing bypassing each of the particulate media element, the coalescing media element and the water separation media element.

Fuel delivery sump based fuel filtration, coalescing, and water separation system with water storage and multiple operational modes

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 low-profile, large diameter, oval shaped, modular, inside out flow in-tank filter assembly includes at least one filter element having spaced first and second identical endcaps each with a central opening there through and filter media extending between the endcaps. The filter assembly includes a tank bushing coupled to the central opening of one endcap of at least one filter element on one end of the assembly, wherein the tank bushing is configured to mount the inside out flow in-tank filter assembly to a return line within a reservoir. The filter assembly includes a bypass valve coupled to the central opening of one endcap of at least one filter element on one end of the assembly, wherein the bypass valve is configured to allow flow to selectively bypass the filter media of each filter element. Further, each endcap includes a universal alignment and coupling structure around the central opening.

Modular low profile in tank filter element assembly

An in-tank filter assembly for an industrial fluid reservoir tank includes a filter assembly mount with tank coupling elements to secure the assembly mount to a tank, and wherein the mount includes an inlet connection configured to be coupled to the an inlet line of the tank; a bypass structure configured to selectively open allowing flow to flow around the filter element into the tank in bypass operation; and a disposable filter element including at least a top end cap and a bottom end cap with filter media extending between the top end cap and a lower end cap, wherein the filter assembly forms a bowl-less in tank return line filter having inside-out flow.

Growing community of inventors

Pittsburgh, PA, United States of America

Scott F Surdick