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:
Dec. 12, 1978
Filed:
Oct. 31, 1977
Charles J Simmons, East Longmeadow, MA (US);
Package Machinery Company, East Longmeadow, MA (US);
Abstract
A package making machine of the vertical form, fill and seal type has an improved electrical control system operable on demand irrespective of the intervals of time between a train of cycle start signals and operable independently of the mechanical power source for the machine and/or its associated product feeder. The machine has a tube feeder operable during a portion of each bag making cycle and an end sealer operable during another portion of each cycle. Side sealing is accomplished during feeding by a hot belt sealer and secondary operations include a jammed product dislodging plunger, an air blast, a code dater, and a bag cut-off knife. All of the foregoing are operable by the control system in timed relationship and the system is also capable of controlling a product dump device in the product feeder. The tube feeder is controlled by an adjustable timer or by a photoregistration circuit which reads marks printed along the length of the web from which the package tube is made. When photoregistration feeding is used, the feed timer operates as an override to shut down the system on failure of one or more registration marks. The end sealer is controlled by an adjustable timer as are all secondary operations. A timed overheat device is operable to remove the hot belt sealer from the tube. Independent adjustment of all operations in their timed relationship and duration of operation is possible as well as adjustment of overall cycle time.