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:
Mar. 15, 2016
Filed:
Sep. 27, 2012
Applicants:
Juergen Kurth, Odenthal, DE;
Juergen Netzer, Burscheid, DE;
Inventors:
Juergen Kurth, Odenthal, DE;
Juergen Netzer, Burscheid, DE;
Assignee:
AKTIEBOLAGET SKF, Gothenburg, SE;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01L 3/08 (2006.01); F16K 1/32 (2006.01); F16K 41/04 (2006.01);
U.S. Cl.
CPC ...
F01L 3/08 (2013.01); F16K 1/32 (2013.01); F16K 41/04 (2013.01);
Abstract
A valve stem seal () seals a valve stem () that is reciprocally movable in an axial direction. The valve stem seal includes a base body () that is connectable with a valve stem guide (). A first seal lip () is resiliently positioned relative to the base body via an elastic connection () and seals the valve stem relative to an oil chamber (). A second seal lip () is spaced in the axial direction () from the first seal lip and seals the valve stem relative to a gas chamber. The second seal lip is also resiliently positioned relative to the base body via the elastic connection.