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.

Date of Patent:
Jul. 12, 1988

Filed:

Jul. 16, 1987
Applicant:
Inventors:

Denis Dumora, Vichy, FR;

Jean-Paul Parant, Dijon, FR;

Laurent Pargamin, Vichy, FR;

Assignee:

Ceraver, Paris, FR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01B / ; H01B / ;
U.S. Cl.
CPC ...
174195 ; 1741 / ; 428410 ;
Abstract

Rigid electrical insulator including a soda-lime glass dielectric with an average thickness of 10 to 15 mm, exhibiting a substantially parabolic stress curve, wherein the maximum value of the surface compression stresses at any point in the part falls within the range of 30 to 80 MPa, while the maximum value of the internal tensile stresses at any point in the part falls within the range of 15 to 40 MPa.


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