Invention Grant
- Patent Title: Earthing switch
- Patent Title (中): 接地开关
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Application No.: US12000431Application Date: 2007-12-12
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Publication No.: US07919720B2Publication Date: 2011-04-05
- Inventor: Yoshinori Shimizu , Masahito Tanaka
- Applicant: Yoshinori Shimizu , Masahito Tanaka
- Applicant Address: JP Chiyoda-Ku, Tokyo
- Assignee: Mitsubishi Electric Corporation
- Current Assignee: Mitsubishi Electric Corporation
- Current Assignee Address: JP Chiyoda-Ku, Tokyo
- Agency: Buchanan Ingersoll & Rooney PC
- Priority: JP2007-211030 20070813
- Main IPC: H01H33/70
- IPC: H01H33/70
Abstract:
In an earthing switch a release mechanism releases pressure stored in a puffer type arc cancelling chamber by releasing the chamber at a predetermined area toward a stationary contact unit during a full stroke extent of a movable contact unit so that the puffering operation can be deterred from execution.
Public/Granted literature
- US20090045170A1 Earthing switch Public/Granted day:2009-02-19
Information query
