Patents by Inventor Irene Spitsberg

Irene Spitsberg 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: 20160151952
    Abstract: A pelletizing extrusion die comprising a die body contains a plurality of extrusion holes. Each of the extrusion holes is defined by a defining surface of the die body wherein at least a portion of the defining surface has a low-friction coating deposited thereon. A method for applying the low-friction coating to the defining surface wherein the applying step occurs at a temperature equal to less than about 520° C.
    Type: Application
    Filed: February 8, 2016
    Publication date: June 2, 2016
    Inventors: Sudhir Brahmandam, Dave Richard Siddle, Irene Spitsberg
  • Patent number: 9314985
    Abstract: A pelletizing extrusion die comprising a die body contains a plurality of extrusion holes. Each of the extrusion holes is defined by a defining surface of the die body wherein at least a portion of the defining surface has a low-friction coating deposited thereon. A method for applying the low-friction coating to the defining surface wherein the applying step occurs at a temperature equal to less than about 520° C.
    Type: Grant
    Filed: June 18, 2012
    Date of Patent: April 19, 2016
    Assignee: KENNAMETAL INC.
    Inventors: Sudhir Brahmandam, Dave Siddle, Irene Spitsberg
  • Patent number: 9309895
    Abstract: A closed impeller has a base cover, which has a base interior surface, and a second cover. A vane, which has an inlet distal end and an outlet distal end, is on the base interior surface. The vane has low and high pressure side surfaces wherein they have a low or high pressure midpoint, respectively. A hard coating is on the low and high pressure side surfaces. The hard coating has a minimum low and high pressure coating thickness at their respective midpoints. The minimum low, as well as high, pressure coating thickness ranging between about 0.085 and about 0.8 of either one of the maximum outlet coating thickness at the outlet distal end or the maximum inlet coating thickness at the inlet distal end, respectively.
    Type: Grant
    Filed: June 18, 2012
    Date of Patent: April 12, 2016
    Assignee: KENNAMETAL INC.
    Inventors: Dave Siddle, Sudhir Brahmandam, Irene Spitsberg
  • Publication number: 20140072469
    Abstract: In one aspect, tungsten carbide material systems are described herein which, in some embodiments, can provide desirable characteristics including chemical inertness, high hardness, reduced sensitivity to local compositional fluctuations and/or enhanced machining properties. In some embodiments, a tungsten carbide material described herein comprises 5.85-6.13 wt. % carbon, 0.85-1.05 wt. % chromium, less than 0.3 wt. % binder, less than 0.3 wt. % impurities and a balance being tungsten.
    Type: Application
    Filed: September 10, 2012
    Publication date: March 13, 2014
    Applicant: Kennametal Inc.
    Inventors: Elizabeth Ann Binky Sargent, Sudhir Brahmandam, Christopher D. Dunn, Irene Spitsberg, Michael James Verti, William Roy Huston
  • Publication number: 20130337221
    Abstract: A coated member, as well as a method for making the coated member, adapted for movement relative to a surface wherein a clearance distance between the coated member and the surface exists in a critical region of the coated member. The coated member has a finished size in the critical region. The substrate has an undersized substrate region of a minimum undersizing depth, which is equal to about seventy-five percent of the clearance distance. The undersized substrate region corresponds to the critical region of the coated member. A finished coating scheme is on the undersized substrate region wherein the finished coating scheme is the result of an oversized coating scheme being finished to form the finished coating scheme wherein the coated member is of the finished size in the critical region.
    Type: Application
    Filed: June 18, 2012
    Publication date: December 19, 2013
    Applicant: Kennametal Inc.
    Inventors: Sudhir Brahmandam, Dave Siddle, Irene Spitsberg
  • Publication number: 20130336776
    Abstract: A closed impeller has a base cover, which has a base interior surface, and a second cover. A vane, which has an inlet distal end and an outlet distal end, is on the base interior surface. The vane has low and high pressure side surfaces wherein they have a low or high pressure midpoint, respectively. A hard coating is on the low and high pressure side surfaces. The hard coating has a minimum low and high pressure coating thickness at their respective midpoints. The minimum low, as well as high, pressure coating thickness ranging between about 0.085 and about 0.8 of either one of the maximum outlet coating thickness at the outlet distal end or the maximum inlet coating thickness at the inlet distal end, respectively.
    Type: Application
    Filed: June 18, 2012
    Publication date: December 19, 2013
    Applicant: Kennametal Inc.
    Inventors: Dave Siddle, Sudhir Brahmandam, Irene Spitsberg
  • Publication number: 20130327271
    Abstract: An apparatus for depositing a ceramic coating on a component. The apparatus is configured to make use of an evaporation source containing multiple different oxide compounds, in which at least one of the oxide compounds has a vapor pressure that is higher than the remaining oxide compounds. The apparatus is operable to introduce the evaporation source into a coating chamber, suspend the component near the evaporation source, and project a high-energy beam on the evaporation source to melt and form a vapor cloud having a composition comprising the oxide compounds of the evaporation source. The apparatus includes a feature that prevents the vapor cloud from contacting and condensing on the component during an initial phase of operation, and subsequently permit and then again prevent the vapor cloud from contacting and condensing on the component during subsequent phases of operation in response to changes in the composition of the vapor cloud.
    Type: Application
    Filed: October 5, 2006
    Publication date: December 12, 2013
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Boris A. Movchan, Irene Spitsberg, Ramgopal Darolia
  • Publication number: 20130078331
    Abstract: A pelletizing extrusion die comprising a die body contains a plurality of extrusion holes. Each of the extrusion holes is defined by a defining surface of the die body wherein at least a portion of the defining surface has a low-friction coating deposited thereon. A method for applying the low-friction coating to the defining surface wherein the applying step occurs at a temperature equal to less than about 520° C.
    Type: Application
    Filed: June 18, 2012
    Publication date: March 28, 2013
    Applicant: Kennametal Inc.
    Inventors: Sudhir Brahmandam, Dave Siddle, Irene Spitsberg
  • Publication number: 20130078328
    Abstract: Pelletizing ring extrusion dies comprising a die body having a plurality of holes, wherein each hole has surface at least partially coated with a low-friction coating. The low-friction coatings reduce surface temperatures during operation of the dies, which reduces volatilization and inconsistent flow of the material being extruded. The pelletizing ring extrusion dies possess improved tool life due to the low-friction coatings.
    Type: Application
    Filed: September 27, 2011
    Publication date: March 28, 2013
    Applicant: Kennametal, Inc.
    Inventors: Sudhir Brahmandam, David Richard Siddle, Irene Spitsberg
  • Patent number: 8173561
    Abstract: A tungsten carbide material for use in precision glass molding applications having 6.06-6.13 wt. % carbon, 0.20-0.55 wt. % grain growth inhibitor, less than 0.25 wt. % binder, less than 0.6% wt. % impurities, and balance being tungsten. The tungsten carbide material has a nominal grain size of less than 0.5 microns.
    Type: Grant
    Filed: November 10, 2009
    Date of Patent: May 8, 2012
    Assignee: Kennametal Inc.
    Inventors: Elizabeth Ann Binky Peterson, William Roy Huston, Irene Spitsberg, Michael James Verti, Sudhir Brahmandam
  • Patent number: 8100083
    Abstract: A process and apparatus for depositing a ceramic coating, such as a thermal barrier coating (TBC) for a gas turbine engine component. The process deposits a coating whose composition includes multiple oxide compounds and a carbon-based constituent, e.g., elemental carbon, carbides, and carbon-based gases. The process uses at least one evaporation source to provide multiple different oxide compounds and at least one carbide compound comprising carbon and an element. The evaporation source is evaporated to produce a vapor cloud that contacts and condenses on the component surface to form the ceramic coating, and particularly so that the coating comprises the oxide compounds, an oxide of the element of the carbide compound, and the carbide compound and/or a carbon-containing gas. The process is carried out with an apparatus comprising a coating chamber in which the evaporation source is present, and a device for evaporating the evaporation source.
    Type: Grant
    Filed: September 16, 2010
    Date of Patent: January 24, 2012
    Assignee: General Electric Company
    Inventors: Ramgopal Darolia, Irene Spitsberg, Brett Allen Rohrer Boutwell
  • Publication number: 20120003425
    Abstract: A system for precision glass molding comprising a substrate and a coating. The substrate has less than 1.2 wt. % minor constituents. The coating comprises TiAlxNy, wherein x is about 0.7-1.5 and y is about 2.0-3.0. The coating is applied on at least a portion of the substrate.
    Type: Application
    Filed: June 30, 2010
    Publication date: January 5, 2012
    Applicant: Kennametal Inc.
    Inventors: Sudhir Brahmandam, Irene Spitsberg, Michael James Verti
  • Publication number: 20110111945
    Abstract: A tungsten carbide material for use in precision glass molding applications having 6.06-6.13 wt. % carbon, 0.20-0.55 wt. % grain growth inhibitor, less than 0.25 wt. % binder, less than 0.6% wt. % impurities, and balance being tungsten. The tungsten carbide material has a nominal grain size of less than 0.5 microns.
    Type: Application
    Filed: November 10, 2009
    Publication date: May 12, 2011
    Applicant: Kennametal Inc.
    Inventors: Elizabeth Ann Binky Peterson, William Roy Huston, Irene Spitsberg, Michael James Verti, Sudhir Brahmandam
  • Patent number: 7919187
    Abstract: A protective coating for use on a silicon-containing substrate, and deposition methods therefor. The coating has a strontium-aluminosilicate (SAS) composition that is less susceptible to degradation by volatilization and in corrosive environments as a result of having at least an outer surface region that consists essentially of one or more stoichiometric crystalline phases of SAS and is substantially free of a nonstoichiometric second crystalline phase of SAS that contains a substoichiometric amount of silica. The coating can be produced by carrying out deposition and heat treatment steps that result in the entire coating or just the outer surface region of the coating consisting essentially of the stoichiometric celsian phase.
    Type: Grant
    Filed: December 27, 2006
    Date of Patent: April 5, 2011
    Assignee: General Electric Company
    Inventors: Brian Thomas Hazel, Christine Walston, Irene Spitsberg
  • Patent number: 7910173
    Abstract: A thermal barrier coating and deposition process for a component intended for use in a hostile thermal environment, such as the turbine, combustor and augmentor components of a gas turbine engine. The TBC has a first coating portion on at least a first surface portion of the component. The first coating portion is formed of a ceramic material to have at least an inner region, at least an outer region overlying the inner region, and a columnar microstructure whereby the inner and outer regions comprise columns of the ceramic material. The columns of the inner region are more closely spaced than the columns of the outer region so that the inner region of the first coating portion is denser than the outer region of the first coating portion, wherein the higher density of the inner region promotes the impact resistance of the first coating portion.
    Type: Grant
    Filed: July 31, 2008
    Date of Patent: March 22, 2011
    Assignee: General Electric Company
    Inventors: Irene Spitsberg, Brett Allen Rohrer Boutwell, Robert William Bruce, Curtis Alan Johnson, Bangalore Aswatha Nagaraj, William Scott Walston, Rudolfo Viguie, Joshua Leigh Miller, Roger Dale Wustman
  • Publication number: 20110016946
    Abstract: A coated forming tool including a tool component and a wear resistant coating on at least a portion of the tool component. The wear resistant coating includes a bottom coating layer and a top coating layer. The top coating layer has a thickness from about 1 ?m to about 12 ?m and the coating has a thickness ratio of the bottom coating layer thickness to the top coating layer thickness from about 0.5 to about 5.
    Type: Application
    Filed: July 21, 2009
    Publication date: January 27, 2011
    Inventors: Sudhir Brahmandam, David R. Siddle, Peter R. Leicht, Irene Spitsberg
  • Patent number: 7867575
    Abstract: A method for producing a thermal barrier coating/environmental barrier coating system on a silicon containing material substrate includes applying an environmental barrier coating (EBC) over the silicon containing material substrate; and applying a thermal barrier coating (TBC) over the EBC. The thermal barrier coating includes a compound having a primary constituent portion and a stabilizer portion stabilizing said primary constituent. The primary constituent portion of the thermal barrier coating includes hafnia present in an amount of at least about 5 mol % of the primary constituent and the stabilizer portion of said thermal barrier coating includes at least one metal oxide comprised of cations with a +2 or +3 valence present in the amount of about 10 to about 40 mol % of the thermal barrier coating.
    Type: Grant
    Filed: October 23, 2007
    Date of Patent: January 11, 2011
    Assignee: General Electric Company
    Inventors: Brett Allen Rohrer Boutwell, Irene Spitsberg, Christine Govern, Bangalore A. Nagaraj, Brian Thomas Hazel
  • Publication number: 20110003075
    Abstract: A process and apparatus for depositing a ceramic coating, such as a thermal barrier coating (TBC) for a gas turbine engine component. The process deposits a coating whose composition includes multiple oxide compounds and a carbon-based constituent, e.g., elemental carbon, carbides, and carbon-based gases. The process uses at least one evaporation source to provide multiple different oxide compounds and at least one carbide compound comprising carbon and an element. The evaporation source is evaporated to produce a vapor cloud that contacts and condenses on the component surface to form the ceramic coating, and particularly so that the coating comprises the oxide compounds, an oxide of the element of the carbide compound, and the carbide compound and/or a carbon-containing gas. The process is carried out with an apparatus comprising a coating chamber in which the evaporation source is present, and a device for evaporating the evaporation source.
    Type: Application
    Filed: September 16, 2010
    Publication date: January 6, 2011
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Ramgopal Darolia, Irene Spitsberg, Brett Allen Rohrer Boutwell
  • Patent number: 7824744
    Abstract: A process and apparatus for depositing a ceramic coating, such as a thermal barrier coating (TBC) for a gas turbine engine component. The process deposits a coating whose composition includes multiple oxide compounds and a carbon-based constituent, e.g., elemental carbon, carbides, and carbon-based gases. The process uses at least one evaporation source to provide multiple different oxide compounds and at least one carbide compound comprising carbon and an element. The evaporation source is evaporated to produce a vapor cloud that contacts and condenses on the component surface to form the ceramic coating, and particularly so that the coating comprises the oxide compounds, an oxide of the element of the carbide compound, and the carbide compound and/or a carbon-containing gas. The process is carried out with an apparatus comprising a coating chamber in which the evaporation source is present, and a device for evaporating the evaporation source.
    Type: Grant
    Filed: December 16, 2003
    Date of Patent: November 2, 2010
    Assignee: General Electric Company
    Inventors: Ramgopal Darolia, Irene Spitsberg, Brett Allen Rohrer Boutwell
  • Publication number: 20100104861
    Abstract: Metalforming tools comprising WC—Co cemented tungsten carbide are provided for warm and/or hot working operations. The WC—Co materials have controlled compositions and microstructures, resulting in properties that allow the material to be used in such warm and hot metalworking applications.
    Type: Application
    Filed: October 24, 2008
    Publication date: April 29, 2010
    Inventors: David Richard Siddle, Irene Spitsberg