Patents by Inventor Gerald H. Lavoie

Gerald H. Lavoie 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).

  • Furnace for vertical solidification of melt
    Patent number: 4510609
    Abstract: A furnace for growing large single crystals from materials having high meng temperatures using the vertical solidification of melt method. The crucible containing the melt being encased in a muffle with vertically oriented heating rods arranged in a circular pattern around the outside of the muffle. The tops of the heating rods being electrically connected to a continuous graphite ring, and the bottoms of equal numbers of rods being electrically connected to two semi-circular sections of graphite. The power feeds for the heating rods being vertically brought into the furnace from the bottom for electrical connection to the semi-circular sections of graphite.
    Type: Grant
    Filed: January 31, 1984
    Date of Patent: April 9, 1985
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Jaroslav L. Caslavsky, Gerald H. Lavoie, William H. Earle, Dennis J. Viechnicki