Abstract: Method for molding three dimensional articles of thermoplastic sheet material which after molding will withstand the high temperatures of autoclaving for sterilization in hospital use without distortion. Molding is accomplished by providing a low mass mold made of sheet metal which has low heat sink characteristics and is adapted to providing a high degree of temperature uniformity by being made of substantially uniform thickness high thermal conductivity material heated by convection hot air means for a preselected dwell time with the consequent attainment of thermal stability during formation of the article.
Type:
Grant
Filed:
October 22, 1975
Date of Patent:
April 5, 1977
Assignee:
Rowe Industries Division of Coleman Cable & Wire Company