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. 24, 1993
Filed:
Jul. 07, 1992
Masao Fukuda, Shiga, JP;
Ishida Scales Mfg. Co., Ltd., Kyoto, JP;
Abstract
A form-fill-seal type packaging machine pulls an elongated film out of a film roll, directs it to a former to roll the film into a cylindrical form and produces bags by longitudinally sealing the overlapping side edges of the film and transversely sealing the tubular film at top and bottom positions. A roller-like film-guiding piece normally disposed adjacent to the former is on a slidable base plate so as to be retractable away from the former for the convenience of the operator when the film is initially set or when the former is replaced by another one. The slidable plate can be automatically stopped at its normal position adjacent to the former by detecting the extension of the former by a sensor. A device for straightening the film undergoing a zigzag motion is also supported by this slidable plate and hence can be retracted away from the former.