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. 06, 2011
Filed:
Mar. 03, 2010
Shuichi Goto, Bunkyo-Ku, JP;
Kenichi Tanaka, Sodegaura, JP;
Shuichi Goto, Bunkyo-Ku, JP;
Kenichi Tanaka, Sodegaura, JP;
Idemitsu Unitech Co., Ltd., Tokyo, JP;
Abstract
A tapewith a zipper member and a bag filmare continuously moved by rotation of a rotary drumwhile being overlaid with each other such that the tapetravels in a tape introducing groovefor a tape with a zipper member, the groove formed along a circumferential direction of the rotary drum. The tapewith the zipper member is continuously welded to the bag filmon a circumferential surface of the rotary drumby a seal barthat has a welding surfacein a curved shape corresponding to a circumferential surface shape of the rotary drum. The whole tapewith the zipper member is accommodated in the tape introducing groovefor the tape with the zipper member and a seal surface of a tape bodyis adapted to be substantially flush with the circumferential surface of the rotary drum, so that heat applied from the seal barto the tapewith the zipper member is restrained from transferring to the rotary drum