American Roller Company, LLC

Heidelberg Harris, Inc.

Other

James R Carlson

Glenn Alan Guaraldi

James Brian Vrotacoe

Gregory T Squires

Gerald J Landl

George B Brands

Jeffrey S Opad

A tubular printing blanket for a blanket cylinder in an offset printing press comprises 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 comprises a first seamless tubular body of elastomeric material containing compressible microspheres. The inextensible layer comprises 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.

Gapless tubular printing blanket

A fluid transfer roller for use in offset printing for picking up a film of water and transferring it to a printing plate consists of a rigid core with an outer layer of foamed-in-place, partially open-celled foam.

Foam reservoir fluid transfer roller

Offset lithographic printing press including a gapless tubular printing

A compressible roller especially useful in high speed printing systems consists of a rigid core and a compressible cover. The cover consists of a first relatively thick layer of compressible foam containing entrapped gas which is bonded to the core; an elastomeric seal, which prevents the entrapped gas from leaving the foam, bonded to the foam; and an outer print layer of a compatible elastomer bonded to the seal.

Compressible roller

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.

Method of making a gapless tubular printing blanket

A printing sleeve comprises a cylindrical tube of polymeric material reinforced with overlapping, closely touching windings of fibrous reinforcing material with at least one winding extending in each direction. The windings are wound in a helical pattern at a wind angle of about 40.degree..

Wound printing sleeve

A compressible roller especially useful in high speed printing systems consists of a rigid core and a compressible cover. The cover consists of a first relatively thick layer of compressible foam which is bonded to the core, an elastomeric seal bonded to the foam; and an outer print layer of a compatible elastomer bonded to the seal. A method of preparing the roller also is disclosed.

A dielectric roller for a corona treatment system consists of a self-supporting tubular body of a dielectric material having a conductive layer bonded on its inner wall and a pair of end plugs with hubs closing the ends of the body. At least one of the end plugs is of conductive material and makes electrical contact with the conductive layer so that the roller can be grounded.

Corona treatment roller electrode

Improved paster rollers for use in splicing paper webs include a rigid core; a compressible intermediate porous layer surrounding said core; and, a coating of silicone elastomer on the walls of the cells of the outer porous surface of said intermediate layer. Methods of preparing the paster rollers also are disclosed.

Paster roller

A blanket for a printing cylinder of the type having a core with a lateral gap along the periphery of the core is disclosed. The blanket includes a non-extensible backing which is suitable to be wrapped around the core and has first and second opposed lateral ends suitable to be attached to the core within the gap. A filler portion extends laterally across and is fixed to the first lateral end and an elastomeric covering is secured over the backing and filler portion. The filler portion spans the gap beneath the covering between the first and second lateral ends of the backing to support the covering over the gap. Supporting the covering over the gap provides the printing cylinder with a substantially continuous circumference to reduce shocks and vibrations throughout the printing press.

Growing community of inventors

Racine, WI, United States of America

James R Carlson