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. 23, 1987
Filed:
Aug. 21, 1985
Hiroo Ikegame, Tokyo, JP;
Tadashi Takahashi, Kawasaki, JP;
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Abstract
An enclosed thyristor valve of the type dividable into first and second portions comprises a tank, a thyristor valve assembly including a plurality of thyristor elements encased in the tank, a plurality of light guides extending through the tank for transmitting light signals for firing the thyristor elements, cooling pipes extending through the tank for circulating a coolant to cool the thyristor assembly, and bushings mounted on the tank for connecting the thyristor valve assembly with a power line system. The first and second portions are connected at mating flange portions disposed to the first and second portions of the tank. The light guides and cooling pipes are provided for the first portion of the tank so that the light guides and the cooling pipes are not disconnected from the first portion when the inspection and the maintenance of the thyristor valve are required.