Patents by Inventor Emile L. Hugon

Emile L. Hugon 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).

  • Smoke detector by ionization associated to a velocimetric measurement electronic circuit
    Patent number: 4238677
    Abstract: An alarm device for detecting smoke, fire or the like includes a reference and measurement chamber for comparing the character of the ambient atmosphere with a volume of reference gas, and a radioactive source for ionizing the contents of each of the chambers. Electrodes communicating with each of the chambers measures an electric field within each of the latter indicative of the degree of ionization of the contents thereof. An electronic circuit senses the relative difference of the signals produced by the electrodes associated with each of the chambers and activates an alarm when a signal of predetermined magnitude is sensed indicating the presence of smoke or the like in the area of the detector.
    Type: Grant
    Filed: March 31, 1978
    Date of Patent: December 9, 1980
    Assignee: Societe Gamma-Electronic
    Inventor: Emile L. Hugon