Patents by Inventor Charles Bonello

Charles Bonello 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).

  • Float vent
    Patent number: 6315212
    Abstract: A float vent is described for automatically venting gas from liquid, such as air from water in a domestic radiator system. In addition to a float valve (2), a subsidiary valve (6) is provided that can seal the vent path and displace the float valve from its closed position. The subsidiary valve may be a thermostatic or hygroscopic valve, for example.
    Type: Grant
    Filed: May 18, 2000
    Date of Patent: November 13, 2001
    Inventors: John Francis Steeple Heffernan, Charles Bonello