Patents by Inventor Lawrence L. Perletz

Lawrence L. Perletz 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).

  • Patent number: 4968380
    Abstract: A system for continuously supplying solid silicon particles to an apparatus for growing hollow, tubular crystalline bodies. The system includes a container for storing solid silicon particles, a vibratory, pneumatic, or other device for causing the particles to exit the container through an aperture in the bottom thereof, a receiving chamber coupled with the container for receiving the particles which are dispensed from the container, and means for providing a jet of pressurized fluid in the receiving chamber. The latter is coupled with the crucible of the crystal growth apparatus via a conduit extending up through the center of the crucible.In operation, silicon particles are dispensed from the container, travel into the receiving chamber where they are entrained by the jet of pressurized fluid which drives the particles out of the receiving chamber, through the conduit, and into the crystal growth furnace where they fall back into the molten silicon supported in the crucible.
    Type: Grant
    Filed: May 24, 1989
    Date of Patent: November 6, 1990
    Assignee: Mobil Solar Energy Corporation
    Inventors: Gary M. Freedman, Lawrence L. Perletz, John G. Willis