Patents by Inventor Dennis Hollars

Dennis Hollars 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: 9818906
    Abstract: Methods and systems for forming a layer from a fluid mixture on a web are provided. The system includes a fluid delivery apparatus for delivering the fluid mixture onto the web. The fluid delivery apparatus includes a cascade device and a chemical dispenser device. The system also includes a fluid stirring apparatus comprising at least one fan positioned over the web and configured to generate a flow pattern that stirs the fluid mixture on the web while the layer is being formed, without the at least one fan contacting the fluid mixture. The system further includes a fluid removal apparatus having a rinsing device and a suction device. The rinsing device is configured to dispense a rinsing fluid onto the web. The suction device is configured to remove by suction the rinsing fluid and a remaining portion of the fluid mixture remaining on the web after formation of the layer.
    Type: Grant
    Filed: December 19, 2014
    Date of Patent: November 14, 2017
    Assignee: Nuvosun, Inc.
    Inventors: Bruce Hachtmann, Preston Clover, Dennis Hollars, Arthur C. Wall, Rocky Taylor, Gang Grant Peng
  • Publication number: 20160312348
    Abstract: Disclosed are methods and systems for processing a web. The web (402) has a first surface, a second surface opposite the first surface, and includes a magnetic material. An example system includes a processing bed (202) configured to support the web while the first surface of the web undergoes one or more processing steps. The system also includes magnets (300) positioned relative to the processing bed so as to exert a magnetic force on the web that pulls the center of the web (403) toward the processing bed. The system further includes a conveyor belt (404) configured to move the web over the processing bed (202). The conveyor belt has a first contact surface and a second contact surface opposite the first contact surface. The first contact surface is configured to contact the second surface of the web, and the second contact surface is configured to contact the processing bed.
    Type: Application
    Filed: December 19, 2014
    Publication date: October 27, 2016
    Inventors: Bruce HACHTMANN, Preston CLOVER, Dennis HOLLARS, Arthur C. WALL, Rocky TAYLOR, Gang Grant PENG
  • Publication number: 20160315215
    Abstract: Methods and systems for forming a layer from a fluid mixture on a web are provided. The system includes a fluid delivery apparatus for delivering the fluid mixture onto the web. The fluid delivery apparatus includes a cascade device and a chemical dispenser device. The system also includes a fluid stirring apparatus comprising at least one fan positioned over the web and configured to generate a flow pattern that stirs the fluid mixture on the web while the layer is being formed, without the at least one fan contacting the fluid mixture. The system further includes a fluid removal apparatus having a rinsing device and a suction device. The rinsing device is configured to dispense a rinsing fluid onto the web. The suction device is configured to remove by suction the rinsing fluid and a remaining portion of the fluid mixture remaining on the web after formation of the layer.
    Type: Application
    Filed: December 19, 2014
    Publication date: October 27, 2016
    Inventors: Bruce HACHTMANN, Preston CLOVER, Dennis HOLLARS, Arthur C. WALL, Rocky TAYLOR, Gang Grant PENG
  • Patent number: 9171991
    Abstract: Disclosed is a highly automated method of interconnecting flexible solar cells to form solar modules having a wide variety of sizes and electrical characteristics. The method is fast and economical, providing many attributes of a “pseudo monolithic integration” scheme that has previously been attainable only on rigid substrates.
    Type: Grant
    Filed: March 10, 2011
    Date of Patent: October 27, 2015
    Inventors: David Pearce, Bruce Hachtmann, Arthur Wall, Thomas Valeri, Dennis Hollars
  • Publication number: 20120318331
    Abstract: Disclosed is a highly automated method of interconnecting flexible solar cells to form solar modules having a wide variety of sizes and electrical characteristics. The method is fast and economical, providing many attributes of a “pseudo monolithic integration” scheme that has previously been attainable only on rigid substrates.
    Type: Application
    Filed: March 10, 2011
    Publication date: December 20, 2012
    Applicant: DOW GLOBAL TECHNOLOGIES LLC
    Inventors: David Pearce, Bruce Hachtmann, Arthur Wall, Thomas Valeri, Dennis Hollars
  • Publication number: 20110108087
    Abstract: One photovoltaic module includes a plurality of photovoltaic cells and at least one device selected from a sensor, a data storage device and an indicator. Another photovoltaic module includes a plurality of photovoltaic cells and a flexible circuit configured to act as an antenna for electromagnetic radiation. Methods of using such photovoltaic modules are also disclosed.
    Type: Application
    Filed: January 14, 2011
    Publication date: May 12, 2011
    Applicant: MiaSole
    Inventors: Steven Croft, Randy Dorn, Ilan Gur, Bruce Hachtmann, Dennis Hollars, Shefali Jaiswal, Puthur Paulson, David Pearce, Kannan Ramanathan, William Sanders, Ben Tarbell
  • Publication number: 20100294339
    Abstract: A photovoltaic cell includes a photovoltaic material disposed between front and back side electrodes, an insulating layer disposed on the front side electrode and one or more luminescent down shifting materials. Also provided is a photovoltaic module that includes a first photovoltaic cell, a second photovoltaic cell, one or more luminescent down shifting materials and a collector-connector configured to collect current from the first photovoltaic cell and to electrically connect the first photovoltaic cell with the second photovoltaic cell.
    Type: Application
    Filed: July 11, 2008
    Publication date: November 25, 2010
    Inventor: Dennis Hollars
  • Patent number: 7838763
    Abstract: A method of manufacturing improved thin-film solar cells entirely by sputtering includes a high efficiency back contact/reflecting multi-layer containing at least one barrier layer consisting of a transition metal nitride. A copper indium gallium diselenide (Cu(InxGa1-x)Se2) absorber layer (X ranging from 1 to approximately 0.7) is co-sputtered from specially prepared electrically conductive targets using dual cylindrical rotary magnetron technology. The band gap of the absorber layer can be graded by varying the gallium content, and by replacing the gallium partially or totally with aluminum. Alternately the absorber layer is reactively sputtered from metal alloy targets in the presence of hydrogen selenide gas. RF sputtering is used to deposit a non-cadmium containing window layer of ZnS. The top transparent electrode is reactively sputtered aluminum doped ZnO. A unique modular vacuum roll-to-roll sputtering machine is described.
    Type: Grant
    Filed: January 16, 2009
    Date of Patent: November 23, 2010
    Assignee: MiaSole
    Inventor: Dennis Hollars
  • Publication number: 20090199894
    Abstract: A photovoltaic module includes a first photovoltaic cell, a second photovoltaic cell, and a transparent barrier disposed over the first photovoltaic cell and the second photovoltaic cell. The transparent barrier includes least one inorganic layer and at least one electrical conductor which electrically connects the first photovoltaic cell to the second photovoltaic cell. The transparent barrier may include a flexible sheet, web, foil or ribbon containing at least one glassy layer.
    Type: Application
    Filed: December 11, 2008
    Publication date: August 13, 2009
    Inventors: Dennis Hollars, David Pearce
  • Publication number: 20090014057
    Abstract: One photovoltaic module includes a plurality of photovoltaic cells and at least one device selected from a sensor, a data storage device and an indicator. Another photovoltaic module includes a plurality of photovoltaic cells and a flexible circuit configured to act as an antenna for electromagnetic radiation. Methods of using such photovoltaic modules are also disclosed.
    Type: Application
    Filed: July 13, 2007
    Publication date: January 15, 2009
    Inventors: Steven Croft, Randy Dorn, Ilan Gur, Bruce Hachtmann, Dennis Hollars, Shefali Jaiswal, Puthur Paulson, David Pearce, Kannan Ramanathan, William Sanders, Ben Tarbell
  • Publication number: 20080289953
    Abstract: The invention provides a sputtering method that involves exposing a surface of a target support to a flow of a target material, such that the exposing results in condensing the target material on the surface of the target support in a first position and sputtering the condensed target material from the surface of the target support in a second position to a substrate, wherein the surface of the target support in the second position is not exposed to the flow of the evaporated target material during the sputtering. A sputtering target unit also provided. The sputtering method and the sputtering target unit allow performing a high rate sputtering of poor thermal conductors.
    Type: Application
    Filed: May 21, 2008
    Publication date: November 27, 2008
    Inventor: Dennis Hollars
  • Publication number: 20080053519
    Abstract: The invention provides a thin flexible photovoltaic cell for building integrated photovoltaic (BIPV) applications. The photovoltaic cell is deposited on a thin metallic substrate and is integrated with residential structures. These residential structures may be roofing slates, roofing tiles, building claddings and the like. An arrangement of conducting layers is described for increasing the conversion efficiency of the photovoltaic cell. The arrangement of the conducting layers result in high current collection. The photovoltaic cell is encapsulated by encapsulating layers, wherein the encapsulating layers are made of chemically inert and ultraviolet ray resistant polymers.
    Type: Application
    Filed: August 30, 2006
    Publication date: March 6, 2008
    Inventors: David Pearce, Dennis Hollars
  • Publication number: 20050109392
    Abstract: A method of manufacturing improved thin-film solar cells entirely by sputtering includes a high efficiency back contact/reflecting multi-layer containing at least one barrier layer consisting of a transition metal nitride. A copper indium gallium diselenide (Cu(InXGa1-x)Se2) absorber layer (X ranging from 1 to approximately 0.7) is co-sputtered from specially prepared electrically conductive targets using dual cylindrical rotary magnetron technology. The band gap of the absorber layer can be graded by varying the gallium content, and by replacing the gallium partially or totally with aluminum. Alternately the absorber layer is reactively sputtered from metal alloy targets in the presence of hydrogen selenide gas. RF sputtering is used to deposit a non-cadmium containing window layer of ZnS. The top transparent electrode is reactively sputtered aluminum doped ZnO. A unique modular vacuum roll-to-roll sputtering machine is described.
    Type: Application
    Filed: October 25, 2004
    Publication date: May 26, 2005
    Inventor: Dennis Hollars
  • Patent number: 4721636
    Abstract: A glass unit suitable for use as a window in a building comprising at least a pair of spaced, generally parallel, electrically conductive and transparent films in a space between a pair of glass panes. The films are taut and a conductive lead is electrically connected with the films to couple them to ground.
    Type: Grant
    Filed: December 9, 1985
    Date of Patent: January 26, 1988
    Assignee: Southwall Technologies, Inc.
    Inventors: Thomas G. Hood, Steve M. Vincent, Dennis Hollars