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:
Sep. 12, 1989
Filed:
May. 09, 1988
Applicant:
Inventors:
Takehiko Toguchi, Kadoma, JP;
Mamoru Tateno, Kadoma, JP;
Kiwamu Shibata, Kadoma, JP;
Hiromichi Inoue, Kadoma, JP;
Assignee:
Matsushita Electric Works, Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01H / ;
U.S. Cl.
CPC ...
2001 / ; 2001 / ; 2001 / ; 2001 / ;
Abstract
A sealed contact device is formed by disposing a fixed electrode having a fixed contact in an air-tight space defined in a hermetical container in which an electrically insulating gas is sealed at a high pressure, a movable contact of a movable electrode is provided for contact opening and closing with the fixed contact, and means is provided with respect to the movable electrode for allowing it positively movable in the air-tight manner, whereby an optimum contact opening speed of the movable contact and at the same time a proper contact pressure are both obtainable.