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:
Nov. 18, 2003
Filed:
Jun. 18, 1999
John R. Galt, Nobleton, CA;
Anthony Paulovic, Moncton, CA;
Jerzy Szajak, Toronto, CA;
Uwe K. Melisch, Bolton, CA;
Husky Injection Molding Systems, Ltd., Bolton, CA;
Abstract
Methods for enhanced purging of an injection molding shooting pot assembly are provided. Old melt is purged from a shooting pot having an injection plunger slidably received in an injection cylinder. The plunger is moved by a powered piston, which moves the injection plunger to a purging position. The plunger is then arrested in the purging position. Sufficient new melt is injected through an inlet positioned such that the new melt sweeps substantially an entire volume of the injection cylinder ahead of the injection plunger in flowing between the inlet and a single outlet remote from the inlet.