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:
Sep. 02, 2003
Filed:
Dec. 18, 2001
Eduard Golovatai-Schmidt, Röttenbach, DE;
Frank Lauterbach, Höchstädt, DE;
Rainer Ottersbach, Bonn, DE;
INA-Schaeffler KG, Herzogenaurach, DE;
Abstract
A sieve filter for fluid lines, especially for hydraulic pressure lines ( ) in internal combustion engines which is formed of a hollow cylindrical main body ( ) with a fluid inlet ( ) and a fluid outlet ( ), and of a fine mesh filter element ( ) for through flow by fluid which has a bypass function when the filter element ( ) is stopped up or filtering highly viscous fluid. The sieve filter ( ) is biased by a spring element ( ), and is insertable together with the spring element ( ), between two axially spaced opposing surfaces ( ) inside the pressure line ( ) such that its fluid inlet ( ) and the spring element ( ) are prestressed against the opposing surfaces ( ), whereby the main body ( ) of the sieve filter ( ) closes a bypass fluid channel passing the filter element ( ) which is clearable through an axial displacement of the main body ( ) against the force of the spring element ( ) resulting from the rise of fluid pressure on the filter element.