Invention Grant
- Patent Title: End stops for zippers for reclosable packages
- Patent Title (中): 用于可重新封闭包装的拉链终止
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Application No.: US11973703Application Date: 2007-10-10
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Publication No.: US07882603B2Publication Date: 2011-02-08
- Inventor: Per Bentsen
- Applicant: Per Bentsen
- Applicant Address: US IL Glenview
- Assignee: Illinois Tool Works Inc.
- Current Assignee: Illinois Tool Works Inc.
- Current Assignee Address: US IL Glenview
- Agency: Day Pitney LLP
- Main IPC: B65D33/16
- IPC: B65D33/16
Abstract:
The end stop is formed on ends of a zipper for a reclosable package or bag by ultrasonically welding the ends of the zipper profiles together so as to form a raised portion. This prevents the slider from being pulled off of the ends of the zipper. Additionally, in the ultrasonic welding step, an indentation is formed into which glue is added thereby forming a lateral protrusion on the side of a zipper profile. This increases the strength of the end stop and increases the slider pull-off force which can be resisted.
Public/Granted literature
- US20090094803A1 End stops for zippers for reclosable packages Public/Granted day:2009-04-16
Information query
