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:
Jan. 05, 2010
Filed:
Aug. 13, 2007
Method of controlling a screw in a two-stage injection unit and a system for implementing the method
Denise Davina Craig, Etobicoke, CA;
Eric Thomas Scott, Bolton, CA;
Raymond Weiping Zhang, Brampton, CA;
Denise Davina Craig, Etobicoke, CA;
Eric Thomas Scott, Bolton, CA;
Raymond Weiping Zhang, Brampton, CA;
Husky Injection Molding Systems Ltd., Bolton, ON, CA;
Abstract
Embodiments of the present invention teach a method of controlling a screw in a two-stage injection unit and a system for implementing the method. For example, a method of controlling a screw in a two-stage injection unit, the method executable at a computing apparatus associated with the two-stage injection unit is disclosed. The method comprises receiving an indication of an operational parameter associated with the screw of the two-stage injection unit; based on the indication of the operational parameter, determining a target speed (S) for the screw, the target speed (S) being sufficient to enable the screw to produce a required amount of material in a molten state; causing the screw to rotate at the target speed (S), thereby causing the screw to operate in a substantially continuous manner.