Patents by Inventor Clifford Holland

Clifford Holland 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).

  • Pipe temperature control valve
    Publication number: 20060016902
    Abstract: A control valve for preventing freezing in a pipe. A ball valve selectively biased against a valve seat is controlled by a bimetallic snap disk. The control valve is connected to one or more water pipes. When the temperature in the pipe or in the control valve is below a certain temperature, the valve opens to allow a small quantity of water to flow through the valve to allow warmer ground water to warm liquid in the pipes. When the water is warmed to a set temperature the valve closes again allowing normal operation of the supply pipes.
    Type: Application
    Filed: February 25, 2004
    Publication date: January 26, 2006
    Inventors: Angelo Restivo, Clifford Holland