Patents by Inventor Steven Bruce

Steven Bruce 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: 9873629
    Abstract: Methods for forming optical fiber preforms with low-index trenches are disclosed. According to one embodiment, the method includes depositing silica-based glass soot on a bait rod to form a low-index trench region of the optical fiber preform. The silica-based glass soot is deposited such that the low-index trench region has a first density. Thereafter a barrier layer having a second density greater than the first density is formed around the low-index trench region. Therafter, an overclad region is deposited around the barrier layer. The bait rod is then removed from a central channel of the trench-overclad assembly. A separate core assembly is inserted into the central channel. A down-dopant gas is then directed through the central channel of the trench-overclad assembly as the trench-overclad assembly is heated to dope the low-index trench region. The barrier layer prevents diffusion of the down-dopant from the low-index trench region into the overclad region.
    Type: Grant
    Filed: June 30, 2011
    Date of Patent: January 23, 2018
    Assignee: Corning Incorporated
    Inventors: Steven Bruce Dawes, Robert A Knowlton, Pushkar Tandon, Ji Wang
  • Publication number: 20170362115
    Abstract: A method of forming an optical element is provided. The method includes producing silica-based soot particles using chemical vapor deposition, the silica-based soot particles having an average particle size of between about 0.05 ?m and about 0.25 ?m. The method also includes forming a soot compact from the silica-based soot particles and doping the soot compact with a halogen in a closed system by contacting the silica-based soot compact with a halogencontaining gas in the closed system at a temperature of less than about 1200° C.
    Type: Application
    Filed: November 24, 2015
    Publication date: December 21, 2017
    Inventors: Steven Bruce Dawes, Douglas Hull Jennings, Pushkar Tandon
  • Patent number: 9810084
    Abstract: An airfoil for a gas turbine engine includes pressure and suction side walls joined to one another at leading and trailing edges. The pressure and suction side walls surround an airfoil cavity and provide an exterior airfoil surface. A baffle is arranged in the airfoil cavity and includes a supply hole. Ribs extend from the pressure and suction side walls into the airfoil cavity and engage the baffle. The ribs are configured to provide a serpentine cooling passage between the baffle and at least one of the pressure and suction side walls. The serpentine cooling passage has first and second passes joined by a bend. The ribs form a film cooling cavity between the first and second passes. The supply hole fluidly connects the baffle to the film cooling cavity. Film cooling holes extend through at least one of the pressure and suction side walls. The film cooling holes are in fluid communication with the film cooling cavity.
    Type: Grant
    Filed: February 6, 2015
    Date of Patent: November 7, 2017
    Assignee: UNITED TECHNOLOGIES CORPORATION
    Inventors: Brandon W. Spangler, Ryan Alan Waite, Steven Bruce Gautschi, Benjamin F. Hagan
  • Publication number: 20170298762
    Abstract: An airfoil for a gas turbine engine includes pressure and suction side walls joined to one another at leading and trailing edges. The pressure and suction side walls surround an airfoil cavity and provide an exterior airfoil surface. A baffle is arranged in the airfoil cavity and includes a supply hole. Ribs extend from the pressure and suction side walls into the airfoil cavity and engage the baffle. The ribs are configured to provide a serpentine cooling passage between the baffle and at least one of the pressure and suction side walls. The serpentine cooling passage has first and second passes joined by a bend. The ribs form a film cooling cavity between the first and second passes. The supply hole fluidly connects the baffle to the film cooling cavity. Film cooling holes extend through at least one of the pressure and suction side walls. The film cooling holes are in fluid communication with the film cooling cavity.
    Type: Application
    Filed: February 6, 2015
    Publication date: October 19, 2017
    Inventors: Brandon W. Spangler, Ryan Alan Waite, Steven Bruce Gautschi, Benjamin F. Hagan
  • Patent number: 9782766
    Abstract: Disclosed herein are methods for regenerating metal catalysts used in the purification of inert gases for use in fiber draw furnaces and other applications. The methods described herein can regenerate metal catalysts alone or in combination with molecular sieves. The methods disclosed herein are able to prevent the formation and retention of unwanted byproducts during and after the regeneration process, thereby efficiently converting oxidized catalysts to their reduced or elemental form. Gases purified with catalysts regenerated by the methods disclosed herein, when used in fiber draw furnaces and similar applications, can lead to extended equipment lifetimes and higher-quality products due to the lack of degradation by contaminants in the gas stream.
    Type: Grant
    Filed: December 12, 2016
    Date of Patent: October 10, 2017
    Assignee: Corning Incorporated
    Inventors: Erling Richard Anderson, Stephen Mitchell Carlton, Steven Bruce Dawes, John Michael Jewell, Roger Alan Rose
  • Patent number: 9696188
    Abstract: A magnetic flowmeter comprises a pipe section for process flow, a coil for generating a magnetic field across the pipe section, a current source for energizing the coil to generate the magnetic field at a coil drive frequency, and electrodes for sensing voltage induced across the process flow by the magnetic field. A processor calculates a function of the sensed voltage and generates a flow output based on the function. The processor adjusts an operating parameter of the flowmeter, such as electrode voltage sampling period, the coil drive frequency, or a phase shift, as a function of a sensed electrode-to-electrode or electrode-to-ground complex impedance.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: July 4, 2017
    Assignee: Rosemount Inc.
    Inventors: Steven Bruce Rogers, Bruce D. Rovner, Scot Ronald Foss
  • Publication number: 20170173575
    Abstract: Disclosed herein are methods for regenerating metal catalysts used in the purification of inert gases for use in fiber draw furnaces and other applications. The methods described herein can regenerate metal catalysts alone or in combination with molecular sieves. The methods disclosed herein are able to prevent the formation and retention of unwanted byproducts during and after the regeneration process, thereby efficiently converting oxidized catalysts to their reduced or elemental form. Gases purified with catalysts regenerated by the methods disclosed herein, when used in fiber draw furnaces and similar applications, can lead to extended equipment lifetimes and higher-quality products due to the lack of degradation by contaminants in the gas stream.
    Type: Application
    Filed: December 12, 2016
    Publication date: June 22, 2017
    Inventors: Erling Richard Anderson, Stephen Mitchell Carlton, Steven Bruce Dawes, John Michael Jewell, Roger Alan Rose
  • Publication number: 20170176673
    Abstract: Bromine doping of silica glass is demonstrated. Bromine doping can be achieved with SiBr4 as a precursor. Bromine doping can occur during heating, consolidation or sintering of a porous silica glass body. Doping concentrations of bromine increase with increasing pressure of the doping precursor and can be modeled with a power law equation in which doping concentration is proportional to the square root of the pressure of the doping precursor. Bromine is an updopant in silica and the relative refractive index of silica increases approximately linearly with doping concentration. Bromine can be used as a dopant for optical fibers and can be incorporated in the core and/or cladding regions. Core doping concentrations of bromine are sufficient to permit use of undoped silica as an inner cladding material in fibers having a trench in the refractive index profile. Co-doping of silica glass with bromine and chlorine is also demonstrated.
    Type: Application
    Filed: December 14, 2016
    Publication date: June 22, 2017
    Inventors: George Edward Berkey, Steven Bruce Dawes
  • Publication number: 20170144917
    Abstract: A doped silica-titania (“DST”) glass article that includes a glass article having a glass composition comprising a silica-titania base glass containing titania at 7 to 14 wt. % and a balance of silica, and a dopant selected from the group consisting of (a) F at 0.7 to 1.5 wt. %, (b) B2O3 at 1.5 to 5 wt. %, (c) OH at 1000 to 3000 ppm, and (d) B2O3 at 0.5 to 2.5 wt. % and OH at 100 to 1400 ppm. The glass article has an expansivity slope of less than about 1.3 ppb/K2 at 20° C. For DST glass articles doped with F or B2O3, the OH level can be held to less than 10 ppm, or less than 100 ppm, respectively. In many aspects, the DST glass articles are substantially free of titania in crystalline form.
    Type: Application
    Filed: October 19, 2016
    Publication date: May 25, 2017
    Inventors: Sezhian Annamalai, Steven Bruce Dawes, Carlos Alberto Duran, Kenneth Edward Hrdina, William Rogers Rosch, Bryan Ray Wheaton
  • Publication number: 20170089206
    Abstract: An airfoil for use in a gas turbine engine is provided. The airfoil having: a pressure surface and a suction surface each extending axially from a leading edge to a trailing edge of the airfoil, at least one of the pressure surface, the suction surface, the leading edge and the trailing edge terminating at an edge of a tip section of the airfoil; a plurality of internal cooling channels located within the airfoil; and at least one cooling hole in fluid communication with at least one of the plurality of internal cooling channels, wherein the at least one cooling hole is aligned with an opening or diffuser that extends directly from the at least one cooling hole and wherein the opening or diffuser is formed in and extends through the edge of the tip section of the airfoil.
    Type: Application
    Filed: September 30, 2015
    Publication date: March 30, 2017
    Inventors: San Quach, Steven Bruce Gautschi, Matthew A. Devore, Scott D. Lewis, Matthew S. Gleiner, Christopher King, Christopher Corcoran, David Donald Chapdelaine
  • Publication number: 20170082025
    Abstract: A particle separator for removing particles in a flow of air is provided. The particle separator having: a conduit for directing air towards a curved section of the conduit; and a drum in fluid communication with the conduit proximate to the curved section of the conduit, wherein particles in the air travelling towards the curved section will contact a surface of the drum.
    Type: Application
    Filed: September 22, 2015
    Publication date: March 23, 2017
    Inventors: Shayan Ahmadian, Steven Bruce Gautschi, Mark F. Zelesky
  • Publication number: 20170035905
    Abstract: The present invention relates to anti-cKIT antibodies, antibody fragments, antibody drug conjugates, and their uses for the treatment of cancer.
    Type: Application
    Filed: October 3, 2016
    Publication date: February 9, 2017
    Applicant: Novartis AG
    Inventors: Tinya Abrams, Steven Bruce Cohen, Christie P. Fanton, Thomas Huber, Kathy Miller, Siew Ho Schleyer, Kathrin Ulrike Tissot-Daguette, Catrin Finner
  • Publication number: 20170015710
    Abstract: Provided are cyclic peptide analogs, conjugates comprising such compounds, and pharmaceutical compositions comprising such compounds and conjugates, and methods of treating cancer with such compounds and conjugates.
    Type: Application
    Filed: March 3, 2016
    Publication date: January 19, 2017
    Applicant: Sirenas LLC
    Inventors: Venkat Rami Reddy MACHERLA, Alexander Wayne SCHAMMEL, Ippei USUI, Elizabeth Paige STOUT, Jacob Neal BEVERAGE, Bryan Junn LEE, Steven Bruce COHEN
  • Publication number: 20170002663
    Abstract: A gas turbine engine airfoil includes a body that provides an exterior airfoil surface that extends in a radial direction to a tip. The exterior surface has a leading edge in a forward direction and a trailing edge in an aft direction. The tip includes a squealer pocket that has a recess surface. A cooling passage is arranged in the body. Each of the cooling holes extends from an inlet at the cooling passage to an outlet at the recessed surface. The inlet and outlet are arranged at an angle in an angular direction relative to the recessed surface. The angular direction is toward at least one of the forward and aft directions.
    Type: Application
    Filed: July 2, 2015
    Publication date: January 5, 2017
    Inventors: San Quach, Scott D. Lewis, Steven Bruce Gautschi, Christopher King, Christopher Corcoran, David Donald Chapdelaine
  • Publication number: 20160356161
    Abstract: An article for gas turbine engine includes a body that has a gaspath side for exposure in a core gaspath of a gas turbine engine. The gaspath side has an undulating surface. A cooling passage is in the body. The cooling passage has a undulating profile that corresponds to the undulating surface.
    Type: Application
    Filed: February 13, 2015
    Publication date: December 8, 2016
    Inventors: San Quach, Tracy A. Propheter-Hinckley, Steven Bruce Gautschi
  • Patent number: 9498543
    Abstract: The present invention relates to anti-cKIT antibodies, antibody fragments, antibody drug conjugates, and their uses for the treatment of cancer.
    Type: Grant
    Filed: March 12, 2014
    Date of Patent: November 22, 2016
    Assignee: Novartis AG
    Inventors: Tinya Abrams, Steven Bruce Cohen, Christie P. Fanton, Thomas Huber, Kathy Miller, Siew Ho Schleyer, Kathrin Ulrike Tissot-Daguette, Catrin Finner
  • Publication number: 20160326883
    Abstract: A gas turbine engine component comprises an airfoil with a suction side and pressure side extending from a leading edge to a trailing edge. There are a plurality of cooling holes adjacent the leading edge, with the cooling holes having a non-circular shape, with a longer dimension and a smaller dimension. The airfoil defines a radial direction from a radially outer end to a radially inner end, and radially outer of the cooling holes spaced toward the radially outer end, which have the longer dimension extending closer to parallel to the radial direction. Radially inner cooling holes closer to the radially inner end having the longer dimension extend to be closer to perpendicular relative to the radial direction compared to the radially outer cooling holes.
    Type: Application
    Filed: January 2, 2015
    Publication date: November 10, 2016
    Applicant: UNITED TECHNOLOGIES CORPORATION
    Inventors: Lane Thornton, Matthew A. Devore, Dominic J. Mongillo, Steven Bruce Gautschi
  • Patent number: D779288
    Type: Grant
    Filed: February 19, 2015
    Date of Patent: February 21, 2017
    Inventor: Steven Bruce Willingham
  • Patent number: D796786
    Type: Grant
    Filed: January 15, 2015
    Date of Patent: September 12, 2017
    Inventor: Steven Bruce Freedman
  • Patent number: D804244
    Type: Grant
    Filed: August 10, 2016
    Date of Patent: December 5, 2017
    Assignee: Time on Target Holdings, LLC
    Inventors: David E. Lane, II, John Glenn Kerwood, Roy Luther Manley, Steven Bruce Willingham, Craig Brian Willingham