Patents by Inventor Richard E. Ellwanger

Richard E. Ellwanger 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: 7557019
    Abstract: A plasma is produced in a treatment space (58) by diffusing a plasma gas at atmospheric pressure and subjecting it to an electric field created by two metallic electrodes (54,56) separated by a dielectric material (64), and a precursor material is introduced into the treatment space to coat a substrate film or web (14) by vapor deposition or atomized spraying at atmospheric pressure. The deposited precursor exposed to an electromagnetic field (AC, DC, or plasma) and then it is cured by electron-beam, infrared-light, visible-light, or ultraviolet-light radiation, as most appropriate for the particular material being deposited. Additional plasma post-treatment may be used to enhance the properties of the resulting coated products.
    Type: Grant
    Filed: December 5, 2006
    Date of Patent: July 7, 2009
    Assignee: Sigma Laboratories of Arizona, LLC
    Inventors: Michael G. Mikhael, Angelo Yializis, Richard E. Ellwanger
  • Patent number: 7300859
    Abstract: A plasma is produced in a treatment space (58) by diffusing a plasma gas at atmospheric pressure and subjecting it to an electric field created by two metallic electrodes (54,56) separated by a dielectric material (64), a precursor material is introduced into the treatment space to coat a substrate film or web (14) by vapor deposition or atomized spraying at atmospheric pressure. The deposited precursor is cured by electron-beam, infrared-light, visible-light, or ultraviolet-light radiation, as most appropriate for the particular material being deposited. Additional plasma post-treatment may be used to enhance the properties of the resulting coated products.
    Type: Grant
    Filed: June 7, 2006
    Date of Patent: November 27, 2007
    Assignee: Sigma Laboratories of Arizona, LLC
    Inventors: Michael G. Mikhael, Angelo Yializis, Richard E. Ellwanger
  • Patent number: 7067405
    Abstract: A plasma is produced in a treatment space by diffusing a plasma gas at atmospheric pressure and subjecting it to an electric field created by two metallic electrodes separated by a dielectric material, a precursor material is mixed with the plasma, and a substrate film or web is coated by vapor deposition of the vaporized substance at atmospheric pressure in the plasma field. The deposited precursor is cured by electron-beam, infrared-light, visible-light, or ultraviolet-light radiation, as most appropriate for the particular material being-deposited. Plasma pre-treatment and post-treatment steps are used to enhance the properties of the resulting coated products. Similar results are obtained by atomizing and spraying the liquid precursor in the plasma field.
    Type: Grant
    Filed: July 1, 2004
    Date of Patent: June 27, 2006
    Assignee: Sigma Laboratories of Arizona, Inc.
    Inventors: Michael G. Mikhael, Angelo Yializis, Richard E. Ellwanger
  • Patent number: 6774018
    Abstract: A plasma is produced in a treatment space by diffusing a plasma gas at atmospheric pressure and subjecting it to an electric field created by two metallic electrodes separated by a dielectric material, a vapor precursor is mixed with the plasma, and a substrate material is coated by vapor deposition of the vaporized substance at atmospheric pressure in the plasma field. The use of vaporized silicon-based materials, fluorine-based materials, chlorine-based materials, and organo-metallic complex materials enables the manufacture of coated substrates with improved properties with regard to moisture-barrier, oxygen-barrier, hardness, scratch- and abrasion-resistance, chemical-resistance, low-friction, hydrophobic and/or oleophobic, hydrophilic, biocide and/or antibacterial, and electrostatic-dissipative/conductive characteristics.
    Type: Grant
    Filed: August 26, 2002
    Date of Patent: August 10, 2004
    Assignee: Sigma Laboratories of Arizona, Inc.
    Inventors: Michael G. Mikhael, Angelo Yializis, Richard E. Ellwanger
  • Publication number: 20020195950
    Abstract: A plasma is produced in a treatment space by diffusing a plasma gas at atmospheric pressure and subjecting it to an electric field created by two metallic electrodes separated by a dielectric material, a vapor precursor is mixed with the plasma, and a substrate material is coated by vapor deposition of the vaporized substance at atmospheric pressure in the plasma field. The use of vaporized silicon-based materials, fluorine-based materials, chlorine-based materials, and organo-metallic complex materials enables the manufacture of coated substrates with improved properties with regard to moisture-barrier, oxygen-barrier, hardness, scratch- and abrasion-resistance, chemical-resistance, low-friction, hydrophobic and/or oleophobic, hydrophilic, biocide and/or antibacterial, and electrostatic-dissipative/conductive characteristics.
    Type: Application
    Filed: August 26, 2002
    Publication date: December 26, 2002
    Inventors: Michael G. Mikhael, Angelo Yializis, Richard E. Ellwanger
  • Patent number: 6287687
    Abstract: Methods and apparatus for plasma modifying a substrate are disclosed along with associated techniques for applying coatings to the substrate. Particular utility has been found using a hollow cathode to generate the plasma along with magnetic focusing means to focus the plasma at the surface of a substrate.
    Type: Grant
    Filed: May 7, 1999
    Date of Patent: September 11, 2001
    Assignee: Asten, Inc.
    Inventors: Angelo Yializis, Richard E. Ellwanger, Michael G. Mikhael, Wolfgang Decker, C. Barry Johnson, Gale Shipley, Timothy D. O'Brien
  • Patent number: 6146462
    Abstract: Methods and apparatus for plasma modifying a substrate are disclosed along with associated techniques for applying coatings to the substrate. Particular utility has been found using a hollow cathode to generate the plasma along with magnetic focusing means to focus the plasma at the surface of a substrate.
    Type: Grant
    Filed: May 7, 1999
    Date of Patent: November 14, 2000
    Assignee: AstenJohnson, Inc.
    Inventors: Angelo Yializis, Richard E. Ellwanger, Michael G. Mikhael, Wolfgang Decker, C. Barry Johnson, Gale Shipley, Timothy D. O'Brien
  • Patent number: 5912069
    Abstract: Metal-polymer nanolaminate products are fabricated from a bulk nanolaminate material composed of thousands of alternating metal and polymer layers. The nanolaminate material is produced by a prior art ultra high speed vacuum nanotechnology process that forms metal layers separated by radiation cross linked multifunctional acrylate polymer materials. The polymer to metal ratio in the nanolaminate composite can be successfully controlled. The polymer chemistry in the nanolaminate can be varied to incorporate a broad range of functional groups. The nanolaminate products are safe to handle and are environmentally and chemically stable at least up to 250.degree. C. A change in polymer chemistry can be used to lower or enhance the thermal degradation point of the polymer material.
    Type: Grant
    Filed: December 19, 1996
    Date of Patent: June 15, 1999
    Assignee: Sigma Laboratories of Arizona
    Inventors: Angelo Yializis, Richard E. Ellwanger
  • Patent number: 4309282
    Abstract: Froth flotation of phosphate ore in the presence of residual organic polymeric flocculants is improved in recovery when a collector comprising a fatty acid derived from vegetable or mineral oils and a surface active agent is employed.
    Type: Grant
    Filed: April 14, 1980
    Date of Patent: January 5, 1982
    Assignee: American Cyanamid Company
    Inventors: Eugene L. Smith, Jr., Andrew C. Poulos, Richard E. Ellwanger
  • Patent number: 4251363
    Abstract: Phosphate slimes are effectively settled by the sequential addition of effective amounts of a low molecular weight acrylamide: acrylic acid copolymer of high anionicity and a high molecular weight acrylamide: acrylic acid copolymer of low anionicity.
    Type: Grant
    Filed: September 11, 1979
    Date of Patent: February 17, 1981
    Assignee: American Cyanamid Company
    Inventors: Ralph J. Chamberlain, Richard E. Ellwanger