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:
Feb. 22, 2005
Filed:
May. 20, 2003
Jesus Bengoa, Durango, ES;
Antonio Gorrino, Eibar, ES;
Gerd Upper, Hoisdorf, DE;
Dichtungstechnik G. Bruss GmbH & Co. KG, Hamburg, DE;
Abstract
A shaft sealing ring, comprising an elastic sealing lip which has a sealing edge in engagement with a circumferential surface of a shaft which rotates relative to the shaft sealing ring, further comprising at least two sinusoidally curved helical elements having the same amplitudes and wavelengths which are provided on a sealing lip surface facing the surroundings and serve to convey medium that has escaped to the side of the surroundings back over the sealing edge to the side of the medium of the shaft sealing ring, the helical elements being arranged phase-shifted with respect to each other in circumferential direction and merging tangentially in circumferential direction into the sealing edge is characterized in that the ratio between the wavelength L and the amplitude A of the sinusoidally curved helical elements fulfills the relationship
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile