Patents by Inventor Raymond H. Mallett

Raymond H. Mallett 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).

  • Water shutoff system
    Patent number: 4180088
    Abstract: Water supply line to the home has a water flow sensor therein and a valve therein. When water flow is sensed, the valve is turned off, as when a leak occurs. Such a leak may be caused by failure of a component in the system, such as a burst pipe or leaky hot water heater, or may be caused by a disaster such as an earthquake.
    Type: Grant
    Filed: December 5, 1977
    Date of Patent: December 25, 1979
    Inventor: Raymond H. Mallett