Patents by Inventor William John Welch

William John Welch 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).

  • Ground heat fire-abatement sprinkler system
    Publication number: 20040000408
    Abstract: A fire-abatement sprinkler system is made economically more attractive by inclusion of a ground-loop heat exchanger. When a fire-abatement condition is not present, a pump circulates fluid through the ground heat exchanger, a portion of the supply and feed pipes of the sprinkler system, and at least one heat pump to permit energy to be transferred from/to the ground to/from the building housing the sprinkler system in order to alter the temperature therein and afford a payback of the installation costs.
    Type: Application
    Filed: June 26, 2002
    Publication date: January 1, 2004
    Inventors: Robert Mancini, Gino DiRezze, William John Welch