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:
Mar. 01, 1988
Filed:
Oct. 25, 1985
Douglas J Boring, Franklin, PA (US);
Richard V Reib, Franklin, PA (US);
Resin Stretchers, Reno, PA (US);
Abstract
A method of supplying material to an article forming mold of an injection molding machine. The method comprises initially mixing a granular thermoplastic resin with a granular filler in a dry state and then heating the dry mixture in the chamber in which the feed screw of an injection molding machine rotates. The heating is controlled to initially convert the dry resin to a molten mass while simultaneously heating the filler with the filler remaining as a heated solid. After such initial heating the molten resin/heated filler is retained at a lower temperature prior to molding and then is further heated for ejection from the chamber.