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:
Feb. 09, 2016
Filed:
Jan. 10, 2011
Dietmar Schuller, Altmannstein, DE;
Hans-peter Fleischmann, Stammham, DE;
Mathias Jakob-bodenhagen, Gaimersheim, DE;
Dietmar Schuller, Altmannstein, DE;
Hans-Peter Fleischmann, Stammham, DE;
Mathias Jakob-Bodenhagen, Gaimersheim, DE;
AUDI AG, Ingolstadt, DE;
Abstract
A ventilation device for a hydraulic cylinder providing a housing having a fluid passageway with an inlet and an outlet, and a closure member disposed in said passageway displaceable in obstructing relation with such inlet upon application of a first fluid force in such inlet, obstructing relation with such outlet upon application of a second fluid force on such inlet and in nonobstructing relation with either of such inlet and outlet upon application of a third fluid force between such first and second fluid forces.