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:
Mar. 24, 1992
Filed:
Dec. 18, 1990
Applicant:
Inventor:
Pietro Ciboldi, Bergamo, IT;
Assignee:
ABB Sace S.p.A., Bergamo, IT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02B / ;
U.S. Cl.
CPC ...
361341 ; 174 / ; 2001 / ; 361335 ;
Abstract
An electric switchboard for medium voltages provides for the insulation of the compartments by means of sulfur hexafluoride gas, and each compartment is subdivided into superimposed cells which are metallically separated from one another and are gastight. In the cells auxiliary isolators are also provided for electrically isolating parts of the compartment for the purpose of maintenance without putting the entire switchboard out of action.