Invention Grant
- Patent Title: Apparatus for monitoring the state of an electrical switching device
- Patent Title (中): 用于监视电气开关装置的状态的装置
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Application No.: US11664493Application Date: 2005-09-20
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Publication No.: US07994444B2Publication Date: 2011-08-09
- Inventor: Wojciech Olszewski , Peter Schmidt
- Applicant: Wojciech Olszewski , Peter Schmidt
- Applicant Address: DE Munich
- Assignee: Siemens Aktiengesellschaft
- Current Assignee: Siemens Aktiengesellschaft
- Current Assignee Address: DE Munich
- Agent Laurence A. Greenberg; Werner H. Stemer; Ralph E. Locher
- Priority: DE102004048985 20041001
- International Application: PCT/EP2005/054680 WO 20050920
- International Announcement: WO2006/037724 WO 20060413
- Main IPC: H01H9/00
- IPC: H01H9/00
Abstract:
An electrical switching device has a state indicator which is covered or uncovered in accordance with the state of the switching device. In order to reduce the amount of moved masses, the state indicator remains in a resting position during a switching process of the electrical switching device. The state indicator can be covered at least in part by the movable switching contact pieces of the electrical switching device, for example.
Public/Granted literature
- US20080105524A1 Apparatus for Monitoring the State of an Electrical Switching Device Public/Granted day:2008-05-08
Information query
