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:
Nov. 26, 2002
Filed:
Apr. 10, 2001
Wolfgang Ehrfeld, Mainz, DE;
Volker Graeff, Mainz, DE;
Frank Michel, Nieder-Olm, DE;
Sven Gempper, Volkach, DE;
Jens Heim, Schweinfurt, DE;
Joachim Hering, Würzburg, DE;
Horst Masuch, Schweinfurt, DE;
Edgar Streit, Poppenlauer, DE;
Vasilis Hassiotis, München, DE;
Henri Van Der Knokke, Niederwerrn, DE;
Other;
Abstract
A rolling bearing which has as rolling bearing components one bearing race with a first running surface, a second bearing race with a second running surface opposed to the first surface, and rolling elements arranged between the running surfaces. At least one sensing unit is integrated into the rolling bearing components. The sensing unit can be interrogated by radio via antennas or can be connected to an interrogator by a cable. The sensing unit uses at least one component operating on the SAW or BAW principle to sense changes in length and/or changes in temperature in the material of the rolling bearing component and sends the result of the measurement after the arrival of a radio signal via the antenna or via a cable.