Patents Examined by L Fastowsky
  • Patent number: 6364620
    Abstract: A dual moisture alarm system for use in submersible pumps, including a pump housing, a motor for running the pump which includes a shaft attached to an impeller. Secured to and located within the pump housing are a series of power control and sensing cords. Attached to these cords are both a lower liquid sensing probe and an upper liquid sensing probe which can sense the presence of fluids, both in a lower sealing chamber located below the motor and an upper chamber located above the motor. The upper liquid sensing probe senses the presence of fluids within the upper chamber before the power terminals also located in the upper chamber are contacted by the fluids.
    Type: Grant
    Filed: August 29, 2000
    Date of Patent: April 2, 2002
    Assignee: Zoeller Company
    Inventors: Jason Fletcher, John Zoeller