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:
Mar. 07, 1978
Filed:
Jun. 04, 1976
John W Scully, Quincy, MA (US);
Pneumatic Scale Corporation, Quincy, MA (US);
Abstract
Apparatus for making a succession of bags from a web of sheet material which has been printed with a series of spaced parallel bands of heat activatable adhesive located at intervals corresponding to the lengths of the bags to be made wherein the web is formed about a mandrel into a tube and advanced therealong to sealing instrumentalities situated forwardly of the mandrel in the direction of movement, a pair of endless belts paralleling the mandrel for advancing the tube along the mandrel toward the sealing instrumentalities and a detector responsive to the presence of a band of adhesive on the web and located at a place in the path of movement of the web which corresponds to a whole number of bag lengths from the sealing instrumentalities which controls the feeding means so as to feed one bag length at a time relative to the sealing instrumentalities.