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. 22, 2013
Filed:
Apr. 29, 2010
Brian Keeley, Beaverton, MI (US);
Albert Arends, Gladwin, MI (US);
James Martin, Beaverton, MI (US);
James Robbins, Midland, MI (US);
Brian Keeley, Beaverton, MI (US);
Albert Arends, Gladwin, MI (US);
James Martin, Beaverton, MI (US);
James Robbins, Midland, MI (US);
Other;
Abstract
A drive system for double toggle mechanisms used to move upper and lower platens with an electric servo motor-gear box drive shaft driving a crank arm arranged to drive a respective double toggle mechanism in turn connected to the platen. The drive shaft axis is located below the toggle mechanism link pivots and driven in a direction so that the motor acts to assist the double toggle mechanism in lifting the platen, reducing the servo motor peak load. The various components are arranged for symmetrical loading of the pivots concerning the toggle links to increase the evenness of the platen when being raised or lowered.