Patent ID: 6344163
Filing Date: 2002-02-05
Classification: B29C,B29L

Abstract:
The method of forming an elongated, hollow plastisol article which comprises providing an elongated hollow male mold element having an interior and an exterior and open at one end and closed at the opposite end, longitudinally dipping said mold element from said opposite end into a bath of liquid plastisol while slowly rotating the male mold element about a longitudinal axis thereof in order to form a coating of plastisol on an exterior of the opposite end of the mold element, removing said mold element from said bath, rapidly spinning said mold element about at least one longitudinal axis thereof at a rotational speed sufficient to spin off excess liquid plastisol from said mold element throughout an entire coated area of said mold element, heating the exterior of said coating and the interior of said mold element to at least a fusion temperature of said plastisol, forced air cooling at least the exterior of said coating and mold element and at least the interior of said mold element inwardly of said coating in order to cool said mold element and coating, and then removing said coating from said mold element.