PASSIVE PUMP CIRCULATION DEVICE

Brand Owner Address Description
ELECTRO-FLO SEARS, ROEBUCK AND CO. Chicago IL passive pump circulation device for use in acid recirculation in each cell of an automotive battery; sold as a component of said battery;ELECTRO-FLOW;
 

Where the owner name is not linked, that owner no longer owns the brand

    
Technical Examples
  1. A variable-voltage variable-frequency power source for an electric motor that drives a re-circulation pump for a boiling water nuclear reactor. The power source has a semiconductor electric power converter and a speed controller for controlling the semiconductor electric power converter. When a part of the semiconductor electric power converter comes into an inoperative state, that part is electrically disconnected, and the variable-voltage variable-frequency power source temporarily stops outputting power, thereby idling the re-circulation pump. Thereafter, the power source re-starts outputting power before the re-circulation pump completely stops. Thus, the re-circulation pump keeps operating, without stopping.