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:
Dec. 24, 1991
Filed:
Aug. 16, 1990
Applicant:
Inventors:
Dietrich Andree, Dortmund, DE;
Dieter Becker, Lippstadt-Esbeck, DE;
Heinrich Siemensmeyer, Dortmund, DE;
Johannes Wozniak, Lippstadt, DE;
Assignee:
Hoechst AG, Dortmund, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16C / ;
U.S. Cl.
CPC ...
384448 ; 384622 ;
Abstract
A large open-center roller bearing consisting of single or multiple outer and inner rings with rollers rolling over races between the rings, wherein one ring can accommodate an ultrasonic probe and the other ring has a contact surface. The object is to provide a bearing that can be simply and reliably tested by ultrasound. One or more contact surfaces (19, 24, and 25) extend around one or more of the outer surfaces of the ring (2 or 3) being tested.