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:
Aug. 08, 2006
Filed:
Oct. 20, 2003
Georg Michael Ickinger, Graz, AT;
Kittappa Gowda Harish, Chennai, IN;
Mangalasseril Saju, Chennai, IN;
Shanmuaham Sivakumar, Chennai, IN;
Mathrubootmam Kumar, Chennai, IN;
Anand Sukumaran Vivek, Chennau, IN;
Georg Michael Ickinger, Graz, AT;
Kittappa Gowda Harish, Chennai, IN;
Mangalasseril Saju, Chennai, IN;
Shanmuaham Sivakumar, Chennai, IN;
Mathrubootmam Kumar, Chennai, IN;
Anand Sukumaran Vivek, Chennau, IN;
Demag Ergotech GmbH & L & T-Demag Plastics Machinery, Schwaig, DE;
Private Limited, Chennai, IN;
Abstract
An injection molding machine includes an actuating drive in form of an electromotive spindle drive and an energy storage device associated with the spindle drive. The energy storage device stores kinetic energy and can include two counteracting compression spring assemblies. The energy storage device is hereby loaded, as the spindle drive moves to a first end position, and unloaded, as the spindle drive moves in opposite direction to a second end position, wherein unloading of the energy storage device is accompanied by a power boost of the electric motor, and wherein the first force is equal to the second force at an equilibrium location distal from the end positions of the spindle drive.