Patents by Inventor Bruce Chalmers

Bruce Chalmers 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).

  • Displaced capillary dies
    Patent number: 4430305
    Abstract: An asymmetrical shaped capillary die made exclusively of graphite is used to grow silicon ribbon which is capable of being made into solar cells that are more efficient than cells produced from ribbon made using a symmetrically shaped die.
    Type: Grant
    Filed: February 12, 1979
    Date of Patent: February 7, 1984
    Assignee: Mobil Solar Energy Corporation
    Inventors: Juris P. Kalejs, Bruce Chalmers, Thomas Surek
  • Solar cells
    Patent number: 4379202
    Abstract: A solar cell having a periodic front surface electrode is provided with a transparent cover chosen and configured to provide refractive discontinuities of the same spatial frequency as and aligned with the conductive grid. The refractive discontinuities are so controlled, through selection of the shape, disposition, and refractive index of the cover, as to cause a ray initially normal to the surface of the cell which would otherwise be intercepted by the electrode to miss the electrode and fall on the photosensitive material.
    Type: Grant
    Filed: June 26, 1981
    Date of Patent: April 5, 1983
    Assignee: Mobil Solar Energy Corporation
    Inventor: Bruce Chalmers
  • Displaced capillary dies
    Patent number: 4353757
    Abstract: An asymmetrical shaped capillary die made exclusively of graphite is used to grow silicon ribbon which is capable of being made into solar cells that are more efficient than cells produced from ribbon made using a symmetrically shaped die.
    Type: Grant
    Filed: July 3, 1980
    Date of Patent: October 12, 1982
    Assignee: Mobil Tyco Solar Energy Corporation
    Inventors: Juris P. Kalejs, Bruce Chalmers, Thomas Surek