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, 1991
Filed:
Dec. 18, 1989
Lawrence J Bain, LaGrange, IL (US);
Rockwell International Corporation, El Segundo, CA (US);
Abstract
A pair of coacting blanket cylinder assemblies (13', 14') employed in a high speed printing press are each provided with a resilient blanket (13, 14) wrapped around a cylinder (15, 16) and held in place by magnets (35, 26) carried by the cylinders (15, 16). The magnets (35, 36) attract and hold magnetic portions (31, 32, 33, 34) of a metal backing plate adjacent the ends of the blankets (13A, 13B, 14A, 14B) which are separated by a gap (43, 44) of a size selected according to the thickness of blanket and natural frequency of the cylinder (15, 16) to obtain a residual response for gap disturbances that is less than a maximum threshold response at which streaking occurs during printing operation at high speed.