Reeves Brothers, Inc.

Herman D Sheron, Jr

Andrew J Gaworowski

Roger D Meadows

Darren E Hercyk

John H Genest

The present invention provides a method and apparatus for the rapid, uniform curing of cylindrical, polymeric objects. The invention provides precise, accurate control of both the curing temperature and pressure because the heating system is independent of the pressurization device. Cylindrical polymeric objects are cured by mounting the object on a cylindrical mandrel, applying substantially uniform pressure to the outer surface of the object, typically through an expandable bladder, and supplying curing is heat directly to the object by circulating a liquid heat transfer medium through the bladder or mandrel. Preferably, the expandable elastomeric bladder is mounted coaxially with the mandrel, and is expanded with a suitable liquid or gas to provide the pressure. The liquid heat transfer medium can be pumped through a passage in the mandrel to apply heat directly to the interior of the object, or the liquid heat transfer medium may be used to expand the bladder and apply the curing heat to the exterior of the object. Alternatively, a combination of both techniques may be employed.

Method and apparatus for curing cylindrical polymeric objects

The present invention relates to a tool used to insert the sleeve of a cylindrical printing blanket over a press cylinder. One end of the tool is equipped with a tapered portion which forms a snug fit with the inside wall of the sleeve. This tapered portion is formed on a ring shaped member, a plurality of connecting rods connect the ring shaped member to a base plate attached to a handle. The length of these connecting rods is sufficient to accommodate the length of a bearing assembly of the press cylinder onto which the cylindrical blanket is mounted.

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Seneca, SC, United States of America

Herman D Sheron, Jr