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. 19, 2002
Filed:
Sep. 18, 2000
Applicant:
Inventor:
Rolf Vogt, Oftersheim, DE;
Assignee:
Firma Carl Freudenberg, Weinheim, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23B 1/00 ;
U.S. Cl.
CPC ...
B23B 1/00 ;
Abstract
A sealing arrangement, including a surface to be sealed off of a rotationally symmetrical machine element and a radial shaft sealing ring. The sealing ring has a sealing lip made of polymer material, which contacts the surface along a sealing edge that is formed of two mutually intersecting conical surfaces, the first conical surface, facing the space to be sealed off, forming a steeper angle with the axis of rotation than the conical surface facing away from it. A spiral-shaped groove having a rounded groove bottom is recessed into the surface, the groove bottom has a radius of curvature of 0.4 to 1.6 mm, and the depth of the groove is less than 15 &mgr;m.