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:
Aug. 13, 2002
Filed:
Apr. 03, 1997
Jan A. Paasonen, Kerava, FI;
Bertram Staudenmaier, Kreuzau-Bilstein, DE;
Stowe Woodward Inc., Southborough, MA (US);
Abstract
The problems caused by chemical and thermal shrinkage of hard roll covers, are reduced by the inclusion of one or more intermediate compressive layers between a roll core base and cover. The compressive layer has the properties of being rigid enough to allow the cover to be applied to the roll, and compressible enough to deform and absorb the stresses which occur as the cover is shrinking during processing. In one embodiment, the compressive layer is separately cast with the cover over a disposable inner mold so as to form a composite roll cover. The composite roll cover is fitted over a roll core base and the resulting circumferential cavity is then filled with a thermoset resin.