International Paper Company

Warren R Furbeck

Charles A Lee

Frederick M Granberg

Horace N Kemp

A method and apparatus for use in the manufacture of improved molded pulp products are disclosed wherein foraminous molds disposed over openings in a liquid impervious belt are moved beneath the surface of a flowing furnish and suction is applied to draw liquid through the molds and deposit a layer of pulp on each mold. Thereafter, the pulp deposit on each mold is simultaneously subjected to a generally uniform pressing with a second belt and suction which forms a smooth exposed surface on the pulp deposit and removes a portion of the liquid therein.

Pulp molding system including a flexible mold carrying belt and an

An expandable chuck for rotatably supporting a longitudinal roll, such as a tissue supply roll for a folding machine, having a hollow cylindrical core. Pneumatically inflatable tube members are mounted on spaced wheel members, which are in turn mounted on a cylindrical sleeve rotatably mounted on a support shaft. The tube members are pneumatically interconnected and the chuck is fully controllable from either end for insertion in or removal from the core of a roll by valve and vent means adjacent each end of the chuck.

Expandable chuck

A method and apparatus are disclosed for making a molded pulp product such as a plate or the like which has an upper liquid impervious layer integrally secured thereon. The pulp product is formed on a foraminous mold and, together with the mold, is heated to the softening temperature of a liquid impervious thermoplastic sheet material which is caused to be cut to size by engagement with a cutting edge on the mold whereafter the severed portion is drawn by suction and bonded to a selected surface area of the pulp product.

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Knoxville, TN, United States of America

Warren R Furbeck