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:
Jan. 08, 2002
Filed:
Aug. 12, 1999
Wolfgang Guth, Laudenbach, DE;
Werner Hufnagel, Grossbettlingen, DE;
Firma Carl Freudenberg, Weinheim, DE;
Abstract
A radial shaft seal with a sealing disk made of a polymer material which curves towards a space that is sealed as the sealing disk radially approaches a shaft with respect to which it forms a seal. The sealing disk has a first surface profiling on the side facing the shaft and a second surface profiling on the side facing away from the shaft, the first surface profiling being formed by sawtooth recesses arranged adjacent to one another axially at a distance. The first bordering surfaces of the recesses facing the space to be sealed form a smaller angle with the shaft than second bordering surfaces of the recesses facing away from the space to be sealed. The second surface profiling is formed by essentially U-shaped recesses which are open on the side facing away from the shaft and are arranged adjacent to one another with an axial distance between them.