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:
Feb. 02, 1988
Filed:
Jan. 30, 1986
Kunio Mitsukuchi, Inuyama, JP;
Isamu Eguchi, Inuyama, JP;
Fumio Ito, Inuyama, JP;
Hiromitsu Ito, Inuyama, JP;
Masahide Takesita, Inuyama, JP;
Takashi Furuhata, Inuyama, JP;
Takamatsu Electric Works, Ltd., Inuyama, JP;
Abstract
The present invention relates to a gas switch provided with a body case wherein a switching unit is installed and an arc-extinguishing gas such as sulfur hexafluoride (SF6) or the like is enclosed at a constant pressure, and an actuating mechanism for operating the switching unit. When a pressure of the arc-extinguishing gas comes lower than a predetermined value, a lock member is disposed to a working position whereat it engages with the actuating mechanism, the actuating mechanism is thus locked unoperatably, and a display member is ready for observing externally in accordance with a shift of the lock member. Operators then carry out works for maintenance and check of the gas switch as ensuring the state wherein a gas pressure drops in the body case and the actuating mechanism has been locked.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile