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.

Date of Patent:
Oct. 13, 2009

Filed:

Jul. 29, 2003
Applicants:

Peter Drott, Frankfurt/M, DE;

Harald König, Ober-Mörlen, DE;

Udo Jungmann, Mörfelden, DE;

Andreas Bischoff, Bad Vilbel, DE;

Hans-michael Koppel, Frankfurt/M, DE;

Inventors:

Peter Drott, Frankfurt/M, DE;

Harald König, Ober-Mörlen, DE;

Udo Jungmann, Mörfelden, DE;

Andreas Bischoff, Bad Vilbel, DE;

Hans-Michael Koppel, Frankfurt/M, DE;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16J 9/20 (2006.01);
U.S. Cl.
CPC ...
Abstract

The invention relates to a sealing collar for a cylinder-and-piston unit, wherein the sealing collar is essentially received in a groove that is inserted into the cylinder or the piston, respectively, and the sealing collar comprises two sealing lips, the first sealing lip thereof being acted upon dynamically and making catch at the piston or the cylinder, respectively, while the second sealing lip thereof is acted upon statically and rests on a bottom of the groove. It is the core of the invention that the sealing collar includes a circumferential extension that extends in parallel to the sealing lips, is arranged radially between the first sealing lip and the second sealing lip and projects from the sealing lips in an axial direction.


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