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:
Feb. 18, 2014
Filed:
Aug. 01, 2011
Russell Christman, Dunstable, MA (US);
Thomas Orsini, Leominster, MA (US);
Todd Brown, Arlington, MA (US);
Jeffrey Potts, Gaylordsville, CT (US);
Russell Christman, Dunstable, MA (US);
Thomas Orsini, Leominster, MA (US);
Todd Brown, Arlington, MA (US);
Jeffrey Potts, Gaylordsville, CT (US);
Shanklin Corporation, Ayer, MA (US);
Abstract
A tubular heating element which is resistant to damage caused by foreign material is disclosed. The tubular heating element is pivotably attached to the side sealing machine at its leading (upstream) edge. The trailing (downstream) edge of the tubular heating element is moved by means of a compressible force, such as an air cylinder. In this way, the air in the cylinder pushes the tubular heating element downward into the plane of the film. However, a foreign object located on the film can overcome the force of the air cylinder, thereby lifting the tubular heating element out of the path of the film.