Integrated Explosion Protection Apparatus For Supervision And Control Of Advanced Electrical Apparatuses
Patent Information
- Authority / Receiving Office
- US · United States
- Patent Type
- Applications(United States)
- Current Assignee / Owner
- ABB AS
- Publication Date
- 2008-11-20
- Estimated Expiration
- Not applicable · inactive patent
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Abstract
Description
CROSS-REFERENCE TO RELATED APPLICATIONS
[0001] The present application is a continuation of pending International patent application PCT / IB2006 / 054993 filed on Dec. 21, 2006 which designates the United States and claims priority from Swedish patent application 0502927-7 filed on Dec. 28, 2005, the content of which is incorporated herein by reference.FIELD OF THE INVENTION
[0002] The present invention relates to a system for explosion protection of electrical apparatuses and machineries, such as manipulators or industrial robots, located in hazardous environments, such as environments containing explosive concentrations of inflammable gases, dusts or vapours. The invention is especially related to systems that apply internal pressurized air into an explosion proof casing / housing and having a purging system.BACKGROUND OF THE INVENTION
[0003] Advanced electrical apparatuses and automatic machineries as e.g. robots will normally consist of a complex design including electrical components as e...