The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 24, 1990
Filed:
Feb. 13, 1989
Gerhard Keller, Jongny, CH;
Andreas Iseli, Ollon, CH;
AISA Automation Industrielle S.A., Vouvry, CH;
Abstract
A method and apparatus for manufacturing compression molded articles from a thermoplastic material blank comprising heating the material, and compression molding the blank by means of a die. The material forming the blank is deposited on the surface of an intermediate support which forms a part of the compression molding mold and extends under and is separated from the die. The blank is separated from the die, which may be accomplished using a heated stream of gas surrounding the die and directed at the point of separation. The blank is introduced into the mold which is closed as the intermediate support is lowered, followed by compression molding the blank by the application of compression molding pressure, and cooling the molded article at least partly under pressure.