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:
Oct. 21, 1997
Filed:
Jun. 07, 1995
Hideki Kishi, Kadoma, JP;
Takehiko Toguchi, Kadoma, JP;
Takaaki Chuzawa, Kadoma, JP;
Riichi Uotome, Kadoma, JP;
Matsushita Electric Works, Ltd., Osaka, JP;
Abstract
A sealed contact device includes a sealed contact section having a sealed container defining therein a gas-tight space together with a bellows for housing therein electrodes and sealing therein a gas preferably consisting mainly of hydrogen, the electrodes including fixed electrodes and movable electrodes engageable with and separable from the fixed electrodes, a contact pressure spring biasing the movable electrodes in engaging direction with respect to the fixed electrodes, a resetting spring biasing the movable electrodes in separating direction from the fixed electrodes, and a movable shaft projected at an end out of the sealed container and coupled at the other end to the movable electrodes; a driving member providing at a movable part a drive force for driving the movable shaft in the direction of engaging the electrodes; and a relaying member interposed between the movable shaft of the sealed contact section and the movable part of the driving member and having a regulating element for regulating driving position of the movable shaft, the relaying member being coupled to the movable part and including a coupling element coupled through the regulating element to the movable shaft.