Patents by Inventor Stephen L. Feldbauer

Stephen L. Feldbauer 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: 7122221
    Abstract: A method and apparatus for coating a substrate (4) with a metal coating by vaporizing the metal in an enclosure (1) containing a selected gas and the substrate. The vaporized metal is deposited on the surface of the substrate either in a solid or molten form depending on the temperature of the substrate relative to the melting point of the metal being deposited. Alloying of the substrate and coating metal are possible with various postcoating heat treatments.
    Type: Grant
    Filed: July 25, 2002
    Date of Patent: October 17, 2006
    Assignee: Danieli Technology, Inc.
    Inventor: Stephen L. Feldbauer
  • Publication number: 20040154539
    Abstract: A method and apparatus for coating a substrate (4) with a metal coating by vaporizing the metal in an enclosure (1) containing a selected gas and the substrate. The vaporized metal is deposited on the surface of the substrate either in a solid or molten form depending on the temperature of the substrate relative to the melting point of the metal being deposited. Alloying of the substrate and coating metal are possible with various postcoating heat treatments.
    Type: Application
    Filed: January 7, 2004
    Publication date: August 12, 2004
    Inventor: Stephen L. Feldbauer
  • Patent number: 6622778
    Abstract: A method for the direct production, from molten metal, of scale-free thin metal strip. Hot thin metal strip exiting a continuous caster system is directed to a reducing chamber wherein a reducing gas reduces strip surface oxides while the cast metal strip is at an elevated temperature from retained heat from the molten metal. A cooling unit following the reducing chamber is used to cool the strip to a temperature below about 150° C. prior to exposing the strip to an oxidizing atmosphere. In various embodiments of the invention, strip thickness is reduced with use of hot and cold rolling mills and the scale-free surface of the strip is coated with protective coatings.
    Type: Grant
    Filed: July 12, 2000
    Date of Patent: September 23, 2003
    Assignee: Danieli Technology, Inc.
    Inventor: Stephen L. Feldbauer
  • Patent number: 6588491
    Abstract: A method and apparatus for the direct production, from molten metal, of scale-free thin metal strip. Hot thin metal strip exiting a continuous caster system is directed to a reducing chamber wherein a reducing gas reduces strip surface oxides while the cast metal strip is at an elevated temperature from retained heat from the molten metal. A cooling unit following the reducing chamber is used to cool the strip to a temperature below about 150° C. prior to exposing the strip to an oxidizing atmosphere. In various embodiments of the invention, strip thickness is reduced with use of hot and cold rolling mills and the scale-free surface of the strip is coated with protective coatings.
    Type: Grant
    Filed: August 21, 2001
    Date of Patent: July 8, 2003
    Assignee: Danieli Technology, Inc.
    Inventor: Stephen L. Feldbauer
  • Publication number: 20020083962
    Abstract: Oxides on the surfaces of metal are reduced by directing reducing gases at them in a forceful and turbulent manner. In a preferred version, the gas is passed through at least two reducing zones designed to maintain a higher concentration of reducing gas in at least one of them than would be the case in a single reducing zone. The oxide-bearing surface is heated at the beginning of the process..
    Type: Application
    Filed: December 18, 2001
    Publication date: July 4, 2002
    Inventors: Stephen L. Feldbauer, Brian H. Braho
  • Patent number: 6406550
    Abstract: Oxides on the surfaces of metal are reduced by directing reducing gases at them in a forceful and turbulent manner. In a preferred version, the gas is passed through at least two reducing zones designed to maintain a higher concentration of reducing gas in at least one of them than would be the case in a single reducing zone. The oxide-bearing surface is heated at the beginning of the process.
    Type: Grant
    Filed: June 1, 2000
    Date of Patent: June 18, 2002
    Assignee: Danieli Technology, Inc.
    Inventors: Stephen L. Feldbauer, Brian H. Braho
  • Patent number: 6402852
    Abstract: Oxides on the surfaces of metal are reduced by directing reducing gases at them in a forceful and turbulent manner in an enclosure. The oxide-bearing surface is heated to at least 900 degrees F.
    Type: Grant
    Filed: January 3, 2001
    Date of Patent: June 11, 2002
    Assignee: Danieli Technology, Inc.
    Inventor: Stephen L. Feldbauer
  • Publication number: 20020017374
    Abstract: A method and apparatus for the direct production, from molten metal, of scale-free thin metal strip. Hot thin metal strip exiting a continuous caster system is directed to a reducing chamber wherein a reducing gas reduces strip surface oxides while the cast metal strip is at an elevated temperature from retained heat from the molten metal. A cooling unit following the reducing chamber is used to cool the strip to a temperature below about 150° C. prior to exposing the strip to an oxidizing atmosphere. In various embodiments of the invention, strip thickness is reduced with use of hot and cold rolling mills and the scale-free surface of the strip is coated with protective coatings.
    Type: Application
    Filed: August 21, 2001
    Publication date: February 14, 2002
    Applicant: Danieli Technology, Inc.
    Inventor: Stephen L. Feldbauer
  • Publication number: 20010011546
    Abstract: Oxides on the surfaces of metal are reduced by directing reducing gases at them in a forceful and turbulent manner in an enclosure. The oxide-bearing surface is heated to at least 900 degrees F.
    Type: Application
    Filed: January 3, 2001
    Publication date: August 9, 2001
    Inventor: Stephen L. Feldbauer
  • Patent number: 6217666
    Abstract: Oxides on the surfaces of metal are reduced by directing reducing gases at them in a forceful and turbulent manner in an enclosure. The oxide-bearing surface is heated to at least 900 degrees F.
    Type: Grant
    Filed: August 31, 1998
    Date of Patent: April 17, 2001
    Assignee: Danieli Technology, Inc.
    Inventor: Stephen L. Feldbauer
  • Patent number: 5947610
    Abstract: A hydrodynamic thrust bearing assembly for supporting a reduced diameter end portion of a rotating shaft includes a thrust button or plate having one end thereof abutting an end of the reduced diameter end portion to absorb axial forces exerted by the rotating shaft, and a hollow cylindrical bearing sleeve disposed around the reduced diameter end portion, and wherein the thrust button has a central aperture for introduction of a process fluid and a plurality of slots in the one end of the thrust button and communicating with the central aperture in the thrust button and with a helical groove formed in an interior surface of the sleeve.
    Type: Grant
    Filed: November 19, 1997
    Date of Patent: September 7, 1999
    Assignee: Danieli Wean
    Inventors: Stephen L. Feldbauer, Paul R. Ripple
  • Patent number: 5863316
    Abstract: A recirculating fume scrubber system in which fume is evolved from an aqueous bath in a process vessel, such as an HCl pickling tank, and the evolved fume is scrubbed with water and then the scrubbed gas is divided into two portions, one of which is released to a stack vented to atmosphere and the other portion is recirculated to the scrubber.
    Type: Grant
    Filed: July 21, 1997
    Date of Patent: January 26, 1999
    Assignee: Danieli Wean, Division of Danieli Corporation
    Inventors: Richard K. Lordo, Stephen L. Feldbauer, Timothy L. Cox