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:
Oct. 13, 1998
Filed:
Mar. 04, 1996
Shigeo Ishino, Niwa-gun, JP;
NGK Insulators, Ltd., , JP;
Abstract
A method of manufacturing insulators with an excellent high-voltage performance having a core member, a sheath arranged on outer surface of the core member and a shed arranged on an outer surface of the sheath is disclosed. In a first aspect of the invention, a method includes the steps of arranging the sheath made of non-cured polymer materials on an outer surface of the core member, arranging a plurality of the sheds made of cured polymer materials on an outer surface of the sheath, and curing the sheath to connect the sheath to the sheds. In a second aspect of the invention, a method includes the steps of arranging the sheath made of cured polymer materials on an outer surface of the core member, arranging a plurality sheds made of cured polymer materials on an outer surface of the sheath, and connecting the sheath to the sheds by using adhesives. In both aspects, a small diameter portion in which a diameter becomes gradually smaller is arranged on all or a part of an inner circumferential surface of the shed to which the sheath is connected, and a securing force of the shed with respect to the sheath is largest at a minimum diameter portion of the small diameter portion as compared with the other portions.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile