Patents by Inventor Donald B. Warfield

Donald B. 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).

  • Patent number: 7918221
    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: Grant
    Filed: April 15, 2004
    Date of Patent: April 5, 2011
    Assignee: BP Corporation North America Inc.
    Inventors: Donald B. Warfield, Paul L Garvison, Dinesh S. Amin
  • Patent number: 7745722
    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: Grant
    Filed: September 21, 2006
    Date of Patent: June 29, 2010
    Assignee: BP Corporation North America Inc.
    Inventors: Donald B. Warfield, Paul L. Garvison
  • Patent number: 7469456
    Abstract: A tool and method for installing an expansion bolt in a remote location where the expansion bolt is not readily accessible. The tool is comprised of a housing having a rod with a puller element on one end slidably mounted in the housing. A barrel is attached to and extends from the front of the housing. The headless screw of an expansion bolt is loosely threaded into the puller element and the barrel of the tool and the bolt are lowered until the expandable anchor on the screw is in or below a hole in a remote support structure. A ratchet in the housing moves the puller within the housing to pull the screw upward while the lower end of the barrel abuts and holds the flange on the anchor portion against the support structure to set the expandable anchor.
    Type: Grant
    Filed: May 14, 2004
    Date of Patent: December 30, 2008
    Assignee: BP Corporation North America Inc.
    Inventor: Donald B. Warfield
  • Publication number: 20080245405
    Abstract: An integrated solar cell roofing system comprised of strips of solar cell groups. Each strip is comprised of a length of a substrate of a flexible, waterproof material. A first layer of bonding material is laid on the substrate onto which a group of pre-wired photovoltaic (PV) cells are positioned. A second layer of bonding material is applied and an individual rigid sheet of glass is laid on the second layer over each group of PV cells. Heat and vacuum is then applied to melt the bonding materials thereby bonding the group of PV cells and the glass sheet onto the substrate to form spaced solar cell groups thereon. The strip can then be folded into a fan-fold configuration for handling.
    Type: Application
    Filed: March 8, 2006
    Publication date: October 9, 2008
    Applicant: BP Corporation North America Inc.
    Inventors: Paul L. Garvison, Donald B. Warfield, John H. Wohlgemuth
  • Publication number: 20080178928
    Abstract: A photovoltaic module with a first sheet of a transparent material, an optional second sheet, and at least one photovoltaic cell positioned between the first sheet and the optional second sheet. The transparent material has a camouflaged pattern which can camouflage a photovoltaic module or photovoltaic array on a roofing application. The camouflaged pattern may also include a substantially textured pattern. Also disclosed is a method for making a photovoltaic module comprising sealing at least one photovoltaic cell between a first sheet and a second sheet, wherein the first sheet comprises a camouflaged pattern.
    Type: Application
    Filed: December 20, 2007
    Publication date: July 31, 2008
    Applicant: BP Corporation North America Inc.
    Inventors: Donald B. Warfield, Paul L. Garvison
  • Patent number: 7333916
    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: Grant
    Filed: April 2, 2004
    Date of Patent: February 19, 2008
    Assignee: BP Corporation North America Inc.
    Inventors: Donald B. Warfield, Paul Garvison
  • Publication number: 20080035140
    Abstract: A frame system suitable for mounting a solar module on a roof, the frame system comprising at least one frame comprising an upper frame member, a lower frame member a right-side frame member, a left-side frame member, at least one projecting member that is attached to or is an integral part of at least one of the side frame members, and projecting in a direction toward or substantially toward the fewer frame member; and a batten comprising a recess for engaging the projecting member of the frame. The frame optionally comprises a means for affixing the frame to another frame.
    Type: Application
    Filed: May 4, 2007
    Publication date: February 14, 2008
    Applicant: BP Corporation North America Inc.
    Inventors: Neil V. Placer, Dinesh S. Amin, George J. Kelly, Donald B. Warfield, Paul L. Garvison
  • Publication number: 20040244179
    Abstract: A tool and method for installing an expansion bolt in a remote location where the expansion bolt is not readily accessible. The tool is comprised of a housing having a rod with a puller element on one end slidably mounted in the housing. A barrel is attached to and extends from the front of the housing. The headless screw of an expansion bolt is loosely threaded into the puller element and the barrel of the tool and the bolt are lowered until the expandable anchor on the screw is in or below a hole in a remote support structure. A ratchet in the housing moves the puller within the housing to pull the screw upward while the lower end of the barrel abuts and holds the flange on the anchor portion against the support structure to set the expandable anchor.
    Type: Application
    Filed: May 14, 2004
    Publication date: December 9, 2004
    Inventor: Donald B. Warfield
  • Patent number: 6465724
    Abstract: A multi-purpose photovoltaic module framing system is provided which combines and integrates the framing system with the photovoltaic electrical system. The user friendly framing system is easy to install and can be directly mounted to a roof surface without auxiliary brackets and beams. The economical framing system has aesthetically pleasing frames to mechanically hold and support photovoltaic modules. The multi-purpose frames desirably have integral electrical raceways which conceal and protect most electrical components and wires. The reliable frames are specially constructed and arranged to permit easy access to output wires and do not require junction boxes. Ground clips can be directly connected to the convenient framing system.
    Type: Grant
    Filed: July 12, 2000
    Date of Patent: October 15, 2002
    Assignee: BP Solar International LLC
    Inventors: Paul Garvison, Donald B. Warfield
  • Patent number: 6111189
    Abstract: A multi-purpose photovoltaic module framing system is provided which combines and integrates the framing system with the photovoltaic electrical system. The user friendly framing system is easy to install and can be directly mounted to a roof surface without auxiliary brackets and beams. The economical framing system has aesthetically pleasing frames to mechanically hold and support photovoltaic modules. The multi-purpose frames desirably have integral electrical raceways which conceal and protect most electrical components and wires. The reliable frames are specially constructed and arranged to permit easy access to output wires and do not require junction boxes. Ground clips can be directly connected to the convenient framing system.
    Type: Grant
    Filed: July 28, 1998
    Date of Patent: August 29, 2000
    Assignee: BP Solarex
    Inventors: Paul Garvison, Donald B. Warfield
  • Patent number: 5098482
    Abstract: An improved vertical junction solar cell wherein the vertical junctions are formed by a plurality of grooves etched in the silicon wafer of the solar cell. The grooves define a plurality of walls having a top surface and side surfaces and a plurality of groove bottoms therebetween. In order to increase radiation resistance in such vertical junction solar cells, a focusing coverslide is provided which retracts or reflects incident light onto only the top surfaces of the walls and away from the grooved bottoms. It has been discovered that the majority of the radiation degradation in vertical junction solar cells occurs as a result of incident light impinging on the grooved bottoms, which are less resistant to radiation than are the top walls. Thus, the present invention provides a vertical junction solar cell with greatly increased radiation resistivity.
    Type: Grant
    Filed: November 7, 1990
    Date of Patent: March 24, 1992
    Assignee: Solarex Corporation
    Inventor: Donald B. Warfield