Patents by Inventor Joseph W. Semple

Joseph W. Semple 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).

  • Heating
    Patent number: 4206874
    Abstract: A heater system comprising a main water discharge and main water return adapted for connection to space or domestic hot water heating means, a main water heater operative for heating water flow therethrough and connected in series with a main pump, and a control system adapted for connection to the space or domestic water heating means and operative to actuate the pump and cause the heater to heat water passing therethrough in response to a signal from a thermostatic sensor in the space or domestic water heating means.
    Type: Grant
    Filed: January 9, 1978
    Date of Patent: June 10, 1980
    Assignee: NEGEA Energy Products, Inc.
    Inventor: Joseph W. Semple