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.

Date of Patent:
Apr. 19, 1994

Filed:

Jan. 27, 1993
Applicant:
Inventors:

James B Vrotacoe, Dover, NH (US);

Glenn A Guaraldi, Kingston, NH (US);

James R Carlson, Racine, WI (US);

Gregory T Squires, Union Grove, WI (US);

Assignee:

Heidelberg Harris GmbH, Kurfursten-Anlage, DE;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B32B / ;
U.S. Cl.
CPC ...
156 86 ; 156161 ; 156165 ; 156170 ; 156172 ; 264137 ; 264255 ; 264258 ;
Abstract

A tubular printing blanket for a blanket cylinder in an offset printing press includes a cylindrical sleeve, a compressible layer over the sleeve, and an inextensible layer over the compressible layer. The cylindrical sleeve is movable telescopically over a blanket cylinder. The compressible layer includes a first seamless tubular body of elastomeric material containing compressible microspheres. The inextensible layer includes a second seamless tubular body of elastomeric material containing a tubular sublayer of circumferentially inextensible material. A seamless tubular printing layer over the inextensible layer has a continuous, gapless cylindrical printing surface. Methods of manufacturing the tubular printing blanket are also disclosed.


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