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. 12, 2008
Filed:
Dec. 26, 2006
Michael A. Kalinowski, Merrimack, NH (US);
Mitchell W. Smith, Newton, NH (US);
Russell T. Christman, Dunstable, MA (US);
James L. Michaelian, Palmer, MA (US);
Michael A. Kalinowski, Merrimack, NH (US);
Mitchell W. Smith, Newton, NH (US);
Russell T. Christman, Dunstable, MA (US);
James L. Michaelian, Palmer, MA (US);
Shanklin Corporation, Ayer, MA (US);
Abstract
Control system and apparatus for controlling current input to an electrical resistance element such as a seal wire. The system and apparatus of the present invention is a closed loop feedback modification to conventional systems, and takes advantage of the inherent expansion of the seal wire as it is heated. The feedback mechanism monitors both the actual current passing through the wire, and the length of the sealing wire, and adjusts the current applied to the wire, responsive to those monitored inputs. The usage of the sealing machine is also monitored and the application and amount of current flowing to the wire is varied based on this usage.