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:
Sep. 26, 1989
Filed:
Sep. 01, 1988
Tokichi Shimizu, Kiryu, JP;
Koyoshi Shimoyama, Kiryu, JP;
Meisei Industry Co., Ltd., Gunma, JP;
Abstract
A process is disclosed for the production of bobbins suitable for use in voice coils. A bobbin tape is gradually rolled into a cylindrical shape around a mandrel having a circular cross-section while feeding the bobbin tape along the longitudinal axis of the mandrel, whereby both longitudinal edges of the bobbin tape are brought into an opposing relationship. Plural shape-retaining tapes are caused to adhere on the thus-rolled bobbin tape at intervals equal to the length of each of the bobbins without covering coil-winding portions, so that both longitudinal edges of the bobbin tape are maintained in the opposing relationship. The resultant bobbin tape is then cut at intervals equal to the length of each of the bobbins from the leading end of the bobbin tape while leaving at least one shape-retaining tape on the side of the trailing end of the bobbin tape. The cutting may also be performed at intervals equal to the total length of plural ones of the bobbins to provide continuous bobbin stocks.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile