Patents by Inventor Gerald W. Dunegan

Gerald W. Dunegan has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method and apparatus for monitoring swimming pools
    Patent number: 4747085
    Abstract: A swimming pool alarm system is provided for actuating an alarm in response to the movement of a person in a swimming pool. The system includes a transmitter mounted below the surface of a swimming pool to continuously transmit ultrasonic sound waves through the body of water, and a similarly positioned receiver detects sound waves in the water and generates an electrical signal in response thereto. The electrical signal is continuously monitored, and the movement of a person in the pool alters the received ultrasonic sound waves and the corresponding electrical signal to produce an alarm signal for actuating an alarm indicator.
    Type: Grant
    Filed: February 24, 1986
    Date of Patent: May 24, 1988
    Assignee: Gerald W. Dunegan
    Inventors: Gerald W. Dunegan, Donald S. Kuhnel