US Patent 7114224 Slide fastener

Patent 7114224 was granted and assigned to YKK on October, 2006 by the United States Patent and Trademark Office.

Overview Structured Data Issues Contributors Activity

Is a

Patent

Patent attributes

Current Assignee

YKK

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

71142240

Date of Patent

October 3, 2006

Patent Application Number

107789920

Date Filed

February 13, 2004

Patent Primary Examiner

‌

Robert J. Sandy

Patent abstract

A weld portion produced by heat welding and a non-weld portion which does not undergo heat welding are formed on a contact face between an inside face of a stopper portion made of synthetic resin and a surface of a fastener tape. Preferably, a bottom end face of a rear side of the stopper portion is made substantially flush with a rear surface of the fastener tape by heating with pressure. Consequently, embrittlement of the stopper portion is prevented and its fixing strength is secured, thereby eliminating itchy feeling and feeling of discomfort originating from a configuration of the upper stopper portion.