Patents by Inventor Peter R. Mitchell

Peter R. Mitchell 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: 11978820
    Abstract: A method of fabricating a single-crystal silicon photovoltaic cell includes providing a single-crystal silicon wafer and a structural support member. The single-crystal silicon wafer has a first major surface and a second major surface. Each major surface extends along a major surface plane. The single-crystal silicon wafer has a thickness greater than 100 micrometers and a dimension greater than 50 mm. The method further includes mounting the structural support member to the first major surface or to the second major surface. The method further includes reducing thickness of the single-crystal silicon wafer to a thickness less than or equal to 100 micrometers while the single-crystal silicon wafer is mounted to the structural support member. The method further includes providing the first major surface with a diffusion and a metalization grid and providing the second major surface with a back surface contact.
    Type: Grant
    Filed: September 20, 2022
    Date of Patent: May 7, 2024
    Assignee: Semivation, LLC
    Inventors: David Vaclav Horak, Peter H Mitchell, Mark Charles Hakey, William R. Tonti, James Marc Leas
  • Publication number: 20240097065
    Abstract: A method of fabricating a single-crystal silicon photovoltaic cell includes providing a single-crystal silicon wafer and a structural support member. The single-crystal silicon wafer has a first major surface and a second major surface. Each major surface extends along a major surface plane. The single-crystal silicon wafer has a thickness greater than 100 micrometers and a dimension greater than 50 mm. The method further includes mounting the structural support member to the first major surface or to the second major surface. The method further includes reducing thickness of the single-crystal silicon wafer to a thickness less than or equal to 100 micrometers while the single-crystal silicon wafer is mounted to the structural support member. The method further includes providing the first major surface with a diffusion and a metalization grid and providing the second major surface with a back surface contact.
    Type: Application
    Filed: September 20, 2022
    Publication date: March 21, 2024
    Applicant: Semivation, LLC
    Inventors: David Vaclav Horak, Peter H Mitchell, Mark Charles Hakey, William R. Tonti, James Marc Leas
  • Patent number: 7454803
    Abstract: A mist delivery system includes an enclosure having at least one misting nozzle coupled thereto. The enclosure includes a primary wall and a secondary wall, whereby an air channel is defined between the primary wall and the secondary wall. A controller directs misted air through the misting nozzle and further activates an air flow system such that misted air within the shower area flows through and is dried in the air channel.
    Type: Grant
    Filed: November 26, 2007
    Date of Patent: November 25, 2008
    Assignee: The Boeing Company
    Inventors: Jeanne Guerin, Douglas E Emsley, Donald R Furlong, Dennis C Lin, Bethany L. Franko, Kevin S Zielki, Cynthia Vandewall, Peter R Mitchell, William Sanford, Vicki Curtis, Wing Cheung
  • Patent number: 5286320
    Abstract: A method for continuously manufacturing a composite sandwich structure by pultrusion through a pultrusion die comprises arranging fiber reinforcement materials on the surface of a preformed foam core, applying liquid resin to the reinforcement materials on the surface of the foam core, heating the surface region of the foam core to a temperature of at least 100.degree. C. to convert water in the foam core to steam, thereby causing water vapor pressure expansion of the foam, and using the expansion of the foam core to subject the liquid resin to increased pressure.
    Type: Grant
    Filed: November 18, 1991
    Date of Patent: February 15, 1994
    Assignee: Owens-Corning Fiberglas Technology Inc.
    Inventors: Ralph D. McGrath, J. Gordon Murphy, Peter R. Mitchell, Christian C. Koppernaes
  • Patent number: 4422999
    Abstract: Tubular thermoformed articles are manufactured from tubular blanks which are heated to the annealing temperature for a time sufficient to anneal the articles by flowing hot liquid therethrough whilst constrained in the desire shape or form followed by flowing cold liquid therethrough to cool to set before being released from the constraint.
    Type: Grant
    Filed: December 31, 1981
    Date of Patent: December 27, 1983
    Inventor: Peter R. Mitchell