The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 07, 2007
Filed:
Jul. 12, 2004
Steven R. Evanovich, Pittsburgh, PA (US);
Augustus O. Schroeder, Pittsburgh, PA (US);
Norbert Friedrich Karl Sann, Riegelsberg, DE;
Michael Otto Sakraschinsky, St. Ingert, DE;
Christopher B. Bortnik, Warrendale, PA (US);
Joseph Francis Ickes, Baden, PA (US);
Steven R. Evanovich, Pittsburgh, PA (US);
Augustus O. Schroeder, Pittsburgh, PA (US);
Norbert Friedrich Karl Sann, Riegelsberg, DE;
Michael Otto Sakraschinsky, St. Ingert, DE;
Christopher B. Bortnik, Warrendale, PA (US);
Joseph Francis Ickes, Baden, PA (US);
Schroeder Industries, LLC, Leetsdale, PA (US);
Abstract
A top or bottom mounted, in-line, in-tank return line filter element is mounted in a hydraulic reservoir. The reservoir includes a holding tank, at least one outlet extending from and one return line extending to the reservoir, an in-tank return line within the reservoir and extending to one return line, and an in-tank return line filter element mounted within the in-tank return line. The in-tank return line filter element includes an end cap, a filter media and a by-pass valve coupled thereto. The end cap includes a central fluid opening, a mounting surface for the filter media, and a peripheral attaching mechanism for attaching the filter element to the in-tank return line to form a filter assembly. The mounting surface is positioned between the central opening and the attaching mechanism such that an in-line, in-tank filter element is provided.