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:
Nov. 01, 1988
Filed:
Feb. 25, 1987
Applicant:
Inventors:
Tsutomu Moriya, Chita, JP;
Hiroyuki Shinokubo, Konan, JP;
Assignee:
NGK Insulators, Ltd., Nagoya, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01B / ;
U.S. Cl.
CPC ...
174182 ; 174189 ;
Abstract
A suspension insulator includes a compressive strain of more than 60.times.10.sup.-6 in the ceramic insulator body at least in the circumferential direction in the vicinity of the shed root of the ceramic head portion of the suspension insulator, whereby a suspension insulator causes no accidents such as separation of cap and pin of suspension insulator, line drop of power transmission lines and the like, even when shot by a rifle.