Patents by Inventor John David Grandinetti

John David Grandinetti 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).

  • Retrofittable tankless passive solar water heater
    Publication number: 20130239951
    Abstract: A tankless solar water heater for heating domestic pressurized water having a flexible insulated heat exchanger housing that contracts to accommodate volume reduction when the solar heating fluid cools. A check valve releases gas and solar heating fluid if interior pressure exceeds ambient pressure by more than one pound per square inch, without admitting air into the container or the heat exchanger when volume of the solar heating fluid reduces due to cooling.
    Type: Application
    Filed: March 14, 2012
    Publication date: September 19, 2013
    Inventor: John David Grandinetti
  • Solar heated liquids pasteurization system
    Patent number: D383113
    Type: Grant
    Filed: February 1, 1995
    Date of Patent: September 2, 1997
    Inventor: John David Grandinetti