Patents by Inventor Floyd A. Chapman

Floyd A. Chapman 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).

  • Submerged pump control
    Patent number: 4171186
    Abstract: A solenoid actuated mechanical relay is encapsulated in electrical insulating resin in a housing on a tubular column extending upward from a submerged pump unit in the bottom of a tank, to energize the pump motor. Float switches mounted on said housing are connected to the relay to control the pump in accordance with a liquid level in the tank.
    Type: Grant
    Filed: August 12, 1977
    Date of Patent: October 16, 1979
    Assignee: Hydronix, Inc.
    Inventor: Floyd A. Chapman