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:
Oct. 28, 1980
Filed:
Oct. 26, 1978
Charles M Schott, Jr, Atkinson, NH (US);
Gloucester Engineering Co., Inc., Gloucester, MA (US);
Abstract
A bag machine for permitting action on multiple widths of web and capable of high speed operation. A rigidifying beam supports the heat seal bar. The heat seal bar is thermally isolated from the beam and the flange of the beam is protected against heat loss. A belt and sprocket assembly that propels a cutter blade across the web path are aligned in a plane set at an angle to the axis of the beam. The sprockets have diameters comparable to the height of the beam and position the cutter blade adjacent the heat seal bar at the lower edge of the beam. The blade is attached by a plate inserted between teeth of the belt with a corresponding tooth omitted from the sprocket. An insulating heat shield also serves to support a protective curtain and a novel lift arrangement is provided for the entire head assembly and upper nip rolls.