Patents by Inventor Bleuse Patrick

Bleuse Patrick 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).

  • Portable and autonomous instrument for analyzing a gaseous composition by means of flame spectrophotometry
    Patent number: 4974963
    Abstract: Instrument comprising a burner (22) provided with a window (221), on the axis of which is disposed a flame spectrophotometric device consisting of a focusing lens (222, 231), a chopper (223) introducing a number of optical filters (224) at the rate of one per characteristic line in the spectrum of the element under analysis, an optoelectronic cell (232) disposed within the focusing zone of said lens, a demodulation assembly for demodulating the electric signal emitted by said cell, and devices for amplifying and displaying the electric signal emitted by said assembly. Special provisions render the instrument portable and autonomous without detracting from its high precision.
    Type: Grant
    Filed: October 31, 1988
    Date of Patent: December 4, 1990
    Assignee: Proengin
    Inventors: Clausin Pierre, Bleuse Patrick, Guene Gilles