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. 13, 2013
Filed:
Jun. 26, 2008
Applicants:
Jens-thorsten Gronau, Hameln, DE;
Mike Heurich, Apelern, DE;
Tino Wiggers, Seelze, DE;
Inventors:
Assignee:
WABCO GmbH, Hannover, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F15B 15/20 (2006.01); F16J 15/32 (2006.01);
U.S. Cl.
CPC ...
Abstract
A pneumatic component includes a cylinder, a piston running in the cylinder, and a grooved ring. The grooved ring seals the piston from the cylinder, and has a static side and a dynamic side. The static side of the grooved ring has at least two concentric microlips.