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:
Jun. 13, 1995
Filed:
Oct. 14, 1993
Tsutomu Tanaka, Yokohama, JP;
Shigeki Nishizumi, Tokyo, JP;
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Abstract
A resistor-provided UHV breaker has a tank sealing an insulating gas therein, a main contact unit located in the tank, a resistor unit connected parallel to the main contact unit, a resistor contact unit located in the tank, a main contact making/breaking unit for making and breaking the main contact unit, and a resistor contact making/breaking unit for making and breaking the resistor contact unit. Further, the breaker has a coupling unit for coupling the main contact making/breaking unit with the resistor contact making/breaking unit. The coupling unit drives the main contact making/breaking unit together with the resistor contact making/breaking unit during closing operation of the main contact unit, and drives the main contact making/breaking unit and the resistor contact making/breaking unit, independently, during breaking operation of the main contact unit.