Invention Grant
- Patent Title: Vacuum valve
- Patent Title (中): 真空阀
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Application No.: US11516787Application Date: 2006-09-07
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Publication No.: US08497445B2Publication Date: 2013-07-30
- Inventor: Shoji Yoshida , Nobuyuki Odaka , Masayuki Furusawa
- Applicant: Shoji Yoshida , Nobuyuki Odaka , Masayuki Furusawa
- Applicant Address: JP Tokyo
- Assignee: Fuji Electric FA Components & Systems Co., Ltd.
- Current Assignee: Fuji Electric FA Components & Systems Co., Ltd.
- Current Assignee Address: JP Tokyo
- Agent Manabu Kanesaka
- Priority: JP2005-305317 20051020
- Main IPC: H01H33/66
- IPC: H01H33/66

Abstract:
A vacuum valve includes a hermetically sealed vessel having an insulative cylinder, an end plate at a movable electrode end, and an end plate at a fixed electrode end. The vessel accommodates a movable contact and an opposed fixed contact. The movable contact is supported through a bellows allowing the contacts to open and close while maintaining an air-tight (hermetic) seal. The bellows used in at least one embodiment is a seam type bellows without metal plating. Nickel plating layers are formed on the end plate at movable contact end and on a cover, which are joined to the bellows. The ends of the bellows are soldered with the end plate and the cover using a silver solder at the solder joints.
Public/Granted literature
- US20070090095A1 Vacuum valve and method of manufacturing vacuum valve Public/Granted day:2007-04-26
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