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Class 218/73 - With throat region


Subclass of Class 218 - High-voltage switches with arc preventing or extinguishing devices
Definition: Subject matter wherein the nozzle has a narrow passage.
No. of patents: 1
Last issue date: 09/23/1980


NumberTitleIssue Date
4224490Fluid blast circuit breaker
The contacts and nozzle of a fluid blast circuit breaker are constructed to have a cross section with a shape other than circular or square. Such cross section facilitates providing the fluid for extinguishing an arc in a circuit breaker at a velocity per... 		09/23/1980
 
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