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:
Oct. 04, 2011
Filed:
Jun. 21, 2007
Hermann Baumann, Tettnang, DE;
Walter Gauss, Neukirch, DE;
Hermann Baumann, Tettnang, DE;
Walter Gauss, Neukirch, DE;
MTU Friedrichshafen GmbH, Friedrichshafen, DE;
Abstract
A filter head, designed to hold at least two filter elements. The filter head having a housing, into which feed channels to, and return channels from, the filter elements are integrated. A rotatable switching drum is provided for selectively opening or closing the channels to control the flow of fluid to the filter elements. The filter head has a cover, which closes off the housing, and a spring element, which produces an axial force which presses one of the sealing surfaces of the switching drum against the cover and the other sealing surface of the switching drum against the housing.