Patents by Inventor Gary D. Rayson

Gary D. Rayson 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).

  • Inductively coupled plasma torch with laminar flow cooling
    Patent number: 5012065
    Abstract: An improved inductively coupled gas plasma torch. The torch includes inner and outer quartz sleeves and tubular insert snugly fitted between the sleeves. The insert includes outwardly opening longitudinal channels. Gas flowing through the channels of the insert emerges in a laminar flow along the inside surface of the outer sleeve, in the zone of plasma heating. The laminar flow cools the outer sleeve and enables the torch to operate at lower electrical power and gas consumption levels additionally, the laminar flow reduces noise levels in spectroscopic measurements of the gaseous plasma.
    Type: Grant
    Filed: November 20, 1989
    Date of Patent: April 30, 1991
    Assignee: New Mexico State University Technology Transfer Corporation
    Inventors: Gary D. Rayson, Yang Shen