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:
Apr. 26, 1977
Filed:
Jan. 06, 1976
Applicant:
Inventor:
Sidney J Cherry, Elmira, NY (US);
Assignee:
Westinghouse Electric Corporation, Pittsburgh, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01H / ;
U.S. Cl.
CPC ...
2001 / ; 200305 ;
Abstract
A vacuum-type circuit interrupter is provided having a two-material vapor, or condensing shield for providing a high-conductivity material, such as copper, for the part that is exposed to the arc, and a superior high-voltage material, such as stainless steel, for the ends of the vapor or condensing shield. Preferably, since the ends of the vapor shield are the origins of high-electric-field intensity, which may result in arcing in a vacuum, to avoid this, a superior high-voltage material, such as stainless steel, is provided.