Patents by Inventor Jean Vastel

Jean Vastel 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).

  • Mass spectrometer for ultra-rapid scanning
    Patent number: 4171482
    Abstract: The invention relates to a mass spectrometer for rapid scanning. A magnetic sector focuses a collimated beam containing the various ion species in a focal plane. The focused beams reach this focal plane at an angle of 45.degree.. The beams emerging from this focal plane are refocused in an electrostatic deflector having parallel plates. One of these plates is provided with a slit through which the beams are received. Scanning is brought about by varying the voltage applied to the electrostatic deflector.
    Type: Grant
    Filed: December 27, 1977
    Date of Patent: October 16, 1979
    Assignee: CAMECA
    Inventor: Jean Vastel