Patents by Inventor Donald Warfield

Donald Warfield 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).

  • Publication number: 20070079865
    Abstract: A system and method for installing a solar module on a roof using a mounting structure which can be adjusted after it has been fixed to the roof. The mounting structure is comprised of a plate having a slot into which an adjustable bracket is slidably positioned. The mounting structures are spaced from each other and the plates are fixed to the roof by toggle bolts or the like. A framed module is placed across the structures and one or both of the adjustable brackets are adjusted to align holes in the frame of the module with threaded chambers in the brackets. Next, threaded fasteners are passed through the holes and into the chambers to thereby secure the solar module to the roof.
    Type: Application
    Filed: September 21, 2006
    Publication date: April 12, 2007
    Applicant: BP CORPORATION NORTH AMERICA INC.
    Inventors: Donald Warfield, Paul Garvison
  • Publication number: 20060277845
    Abstract: A method and apparatus for installing a solar array on the roof of a residence or the like which uses a pan in the installation of the solar modules that make up the array. The pan may also be used as part of the packaging of the solar modules. The pan is comprised of a length of material having a trough-like cross-section. For packaging, shipping inserts are fitted into the trough of each pan. Opposite edges of a solar module are fitted into respective slots in the inserts of two facing pans and a protector is fitted over each end thereof to form a package for shipping. Once on site, the packages are disassembled, the pans are mounted on the roof, and the modules are connected to the pans to form the array.
    Type: Application
    Filed: April 15, 2004
    Publication date: December 14, 2006
    Inventors: Donald Warfield, Paul Garvison, Dinesh Arnin
  • Publication number: 20060085167
    Abstract: A method and apparatus is disclosed for monitoring the performance of a solar powered electrical supply where the supply comprises an array of photovoltaic cells that are mounted on a building. In one embodiment, the apparatus comprises: a device for producing a signal representative of solar irradiance; circuitry for computing a running performance signal by using at least the irradiance signal and a measure of the electrical power supplied to the load from the array; a radio for broadcasting the performance signal; and a portable unit for receiving the performance signal from the radio and for visually displaying the performance signal, power production, and electrical utility usage.
    Type: Application
    Filed: April 2, 2004
    Publication date: April 20, 2006
    Inventors: Donald Warfield, Paul Garvison
  • Publication number: 20050161074
    Abstract: A photovoltaic unit suitable for installing on a support structure comprising a photovoltaic module having a light receiving top side, and a bottom side opposite the top side, and a support substrate attached to the bottom side of the module, the support substrate comprising a plurality of ridges and at least one trough.
    Type: Application
    Filed: December 14, 2004
    Publication date: July 28, 2005
    Inventors: Paul Garvison, Donald Warfield
  • Patent number: 5112409
    Abstract: Photovoltaic apparatus includes a passivating oxide layer formed directly on the surface of a first conductivity type amorphous silicon material in a pattern corresponding substantially to a preselected metalized wide grid layer pattern. The patterned oxide layer is used as a mask to form a diffused layer of opposite conductivity type amorphous silicon material on those surface portions not covered by the oxide layer. The metalized grid layer is then formed on the oxide layer, covering the oxide layer, and overlapping the diffused opposite conductivity type layer at the edges to form continuous or intermittent ohmic contact areas with the diffused layer along the oxide layer-diffused layer boundaries.
    Type: Grant
    Filed: January 23, 1991
    Date of Patent: May 12, 1992
    Assignee: Solarex Corporation
    Inventors: Donald Warfield, Jerry Silver