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:
Jul. 16, 1991
Filed:
Dec. 19, 1989
Kazuo Ueda, Tokushima, JP;
Shikoku Kakoki Co., Ltd., Tokushima, JP;
Abstract
A packaging machine for use with a paper-base laminate serving as a packaging material and having a thermoplastic synthetic resin layer on each surface of a paper layer comprises a container forming unit for forming a content-filled tube into baglike containers after the web is made into a tube and contents are filled thereinto. The unit has jaws for clamping the content-filled tube at regular lengthwise intervals each corresponding to one container to heat-seal the tube over a required width and cut the tube at the midportion of the seal width, and the jaws are provided with a high-frequency coil for heat sealing. The machine further has a unit for affixing a tape of aluminum foil for high-frequency induction heating to the web at the portion thereof to be heat-sealed before the web is made into the tube.