Patents by Inventor Levon H. Keshishian

Levon H. Keshishian 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).

  • Liquid fuel burning heater having flame stopping means
    Patent number: 5080578
    Abstract: An apparatus for extinguishing undesired flames in liquid fuel-burning heaters having a wick partially disposed in a fuel supply reservoir in fluid communication with a fuel tank said apparatus comprising fuel flow cut-off means for interrupting said fluid communication in response to sensing excessive heat and wick withdrawal means for retracting said wick entirely into said wick fuel supply reservoir in response to sensing of excessive heat.
    Type: Grant
    Filed: February 12, 1991
    Date of Patent: January 14, 1992
    Inventors: Harold Josephs, Levon H. Keshishian