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:
Jul. 23, 1991
Filed:
Feb. 22, 1990
Rolf Van Haag, Kerken, DE;
Kleinewefers GmbH, Krefeld, DE;
Abstract
The cylindrical internal surfaces of inner races of antifriction bearings between the end portions of a deformable shell and the stationary carrier for the shell in a roll for use in calenders surround with some clearance the adjacent cylindrical external surfaces of the carrier. The magnitude of stresses between the pairs of internal and external surfaces is monitored by several sensors at least some of which have pockets machined into the respective internal and/or external surface. The pockets receive a pressurized hydraulic fluid which leaks along paths defined by the respective pair of surfaces to be collected in a tank. An evaluating system monitors the pressure in the pockets and serves to regulate the pressure of supplied fluid and/or the hydrostatic or other supporting elements between the carrier and the shell.