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. 20, 1988
Filed:
Apr. 15, 1988
Applicant:
Inventors:
Assignee:
NGK Insulators, Ltd., Nagoya, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01B / ;
U.S. Cl.
CPC ...
174182 ; 174196 ;
Abstract
The disclosed insulator has an insulating member with a cylindrical core, a metal cap with a central hole of inside diameter D so that the core of the member is cemented to the central hole of the metal cap, and a metal pin cemented to the inside of the core of the member. The metal pin has a cemented rod portion with a diameter d.sub.1 and a large-diameter portion with an outside diameter d.sub.2 at an end buried in the core of the member. The diameters satisfy the conditions of