Patents by Inventor Randolph J. Smith

Randolph J. Smith 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: 10794596
    Abstract: A fuel nozzle for a combustor of a gas turbine engine includes an outer air swirler along an axis, said outer air swirler defines an outer annular air passage between an outer wall and an inner wall, the outer wall defines a convergent-divergent nozzle. An inner air swirler along the axis to define an annular liquid passage therebetween, the annular liquid passage terminates upstream of the convergent-divergent nozzle and an annular fuel gas passage around the axis between the outer air swirler and the inner air swirler.
    Type: Grant
    Filed: August 19, 2014
    Date of Patent: October 6, 2020
    Assignee: Raytheon Technologies Corporation
    Inventors: Zhongtao Dai, Randolph J Smith, Kristin Kopp-Vaughan, Timothy S. Snyder, Donald J Hautman
  • Patent number: 10228137
    Abstract: A fuel nozzle for a combustor of a gas turbine engine includes an outer air swirler along an axis, the outer air swirler defines an outer annular air passage. An inner air swirler along the axis defines an annular fuel gas passage around the axis between the outer air swirler and the inner air swirler, the annular fuel gas passage terminates with a multiple of skewed slots.
    Type: Grant
    Filed: August 19, 2014
    Date of Patent: March 12, 2019
    Assignee: United Technologies Corporation
    Inventors: Kristin Kopp-Vaughan, Timothy S Snyder, Randolph J Smith, Zhongtao Dai
  • Patent number: 9810430
    Abstract: A conjoined grommet assembly for a combustor wall assembly of a gas turbine engine has a first grommet defining at least in-part a first dilution hole, and a second grommet defining at least in-part a second dilution hole. The first and second dilution holes are spaced closely together such that the first grommet is in contact with the second grommet.
    Type: Grant
    Filed: December 23, 2014
    Date of Patent: November 7, 2017
    Assignee: United Technologies Corporation
    Inventors: Jonathan P. Sandoval, Randolph J. Smith
  • Publication number: 20160209037
    Abstract: A fuel nozzle for a combustor of a gas turbine engine includes an outer air swirler along an axis, said outer air swirler defines an outer annular air passage between an outer wall and an inner wall, the outer wall defines a convergent-divergent nozzle. An inner air swirler along the axis to define an annular liquid passage therebetween, the annular liquid passage terminates upstream of the convergent-divergent nozzle and an annular fuel gas passage around the axis between the outer air swirler and the inner air swirler.
    Type: Application
    Filed: August 19, 2014
    Publication date: July 21, 2016
    Applicant: United Technologies Corporation
    Inventors: Zhongtao Dai, Randolph J Smith, Kristin Kopp-Vaughan, Timothy S. Snyder, Donald J Hautman
  • Publication number: 20160209038
    Abstract: A fuel nozzle for a combustor of a gas turbine engine includes an outer air swirler along an axis, the outer air swirler defines an outer annular air passage. An inner air swirler along the axis defines an annular fuel gas passage around the axis between the outer air swirler and the inner air swirler, the annular fuel gas passage terminates with a multiple of skewed slots.
    Type: Application
    Filed: August 19, 2014
    Publication date: July 21, 2016
    Inventors: Kristin Kopp-Vaughan, Timothy S Snyder, Randolph J Smith, Zhongtao Dai
  • Publication number: 20160201897
    Abstract: In various embodiments, a dual fuel nozzle (200) for use in a gas 200 turbine engine is provided. The nozzle may be configured to supply and gas and a liquid. The dual fuel nozzle (200) may include an interior wall (217). The interior wall (217) may include a shoulder (219). The shoulder (219) may include one or more gas ports (216). Gas may be discharged through the gas ports (216) and penetrate a mixing zone.
    Type: Application
    Filed: August 19, 2014
    Publication date: July 14, 2016
    Inventors: Timothy S Snyder, Zhongtao Dai, Randolph J Smith, Kristin Kopp-Vaughan
  • Publication number: 20150323182
    Abstract: A conjoined grommet assembly for a combustor wall assembly of a gas turbine engine has a first grommet defining at least in-part a first dilution hole, and a second grommet defining at least in-part a second dilution hole. The first and second dilution holes are spaced closely together such that the first grommet is in contact with the second grommet.
    Type: Application
    Filed: December 23, 2014
    Publication date: November 12, 2015
    Inventors: Jonathan P. Sandoval, Randolph J. Smith
  • Patent number: 6383712
    Abstract: A photoresist composition for use in lithographic processes in the fabrication of semiconductor devices such as integrated circuit structures is disclosed. The photoresist composition includes a monomeric sensitizer bounding to a base-soluble long chain polymer.
    Type: Grant
    Filed: June 5, 1998
    Date of Patent: May 7, 2002
    Assignee: International Business Machines Corporation
    Inventors: Premlatha Jagannathan, Leo L. Linehan, Wayne M. Moreau, Randolph J. Smith
  • Patent number: 6136498
    Abstract: A photoresist composition for use in lithographic processes in the fabrication of semiconductor devices such as integrated circuit structures is disclosed. The photoresist composition includes a monomeric sensitizer bounding to a base-soluble long chain polymer.
    Type: Grant
    Filed: June 28, 1996
    Date of Patent: October 24, 2000
    Assignee: International Business Machines Corporation
    Inventors: Premlatha Jagannathan, Leo L. Linehan, Wayne M. Moreau, Randolph J. Smith
  • Patent number: 6074800
    Abstract: Several mid UV photo acid generators (PAGs), a chemically amplified photo resist (CAMP), and method for improving nested to isolated line bias are provided. Similarly, photo speed may also be improved. Unlike conventional mid UV PAGs, the present invention's PAG compounds, resist composition, and method do not require a mid UV sensitizer. Specifically, PAGs are provided that bear a chromophore capable of receiving mid UV radiation, particularly I-line, and that are suitable for use in a chemically amplified photo resist having a photo speed of 500 mJ/cm.sup.2 or less, but preferrably 200 mJ/cm.sup.2 or less. For example, the PAGs can be a sulfonium or iodonium salt, such as anthryl, butyl, methyl sulfonium triflate and bis(4-t-butylphenyl)iodonium 9,10-dimethoxyanthracene sulfonate.
    Type: Grant
    Filed: April 23, 1998
    Date of Patent: June 13, 2000
    Assignee: International Business Machines Corporation
    Inventors: Gregory Breyta, Phillip J. Brock, Daniel J. Dawson, Ronald A. DellaGuardia, Charlotte R. DeWan, Andrew R. Eckert, Hiroshi Ito, Premlatha Jagannathan, Leo L. Linehan, Kathleen H. Martinek, Wayne M. Moreau, Randolph J. Smith
  • Patent number: 5561194
    Abstract: A polyalkylmethacrylate co-polymer of polyhydroxystyrene has been found to be an ideal blending partner in a novolak photoresist composition. The preferred co-polymer is poly(p-hydroxystyrene)-co-(methyl methacrylate). The co-polymer is fully miscible with novolaks and has a high thermal stability (>150.degree. C.).
    Type: Grant
    Filed: March 29, 1995
    Date of Patent: October 1, 1996
    Assignee: International Business Machines Corporation
    Inventors: Kathleen M. Cornett, Judy B. Dorn, Margaret C. Lawson, Leo L. Linehan, Wayne M. Moreau, Randolph J. Smith, Gary T. Spinillo
  • Patent number: 5362599
    Abstract: Positive photoresist compositions and methods using the photoresist compositions for making submicron patterns in the production of semiconductor devices are disclosed. The photoresists contain sensitizers that are mixed naphthoquinonediazide 4- and 5- sulfonic acid esters of bis and tris(mono, di and trihydroxyphenyl) alkanes.
    Type: Grant
    Filed: November 14, 1991
    Date of Patent: November 8, 1994
    Assignee: International Business Machines Corporations
    Inventors: Christopher J. Knors, Steve S. Miura, Melvin W. Montgomery, Wayne M. Moreau, Randolph J. Smith
  • Patent number: 5296332
    Abstract: High sensitivity, high contrast, heat-stable resist compositions for use in deep UV, i-line e-beam and x-ray lithography. These compositions comprise a film-forming polymer having aromatic rings activated for electrophilic substitution, an acid catalyzable crosslinking agent which forms a hydroxy-stabilized carbonium ion, and a photoacid generator. The compositions are aqueous base developable.
    Type: Grant
    Filed: November 22, 1991
    Date of Patent: March 22, 1994
    Assignee: International Business Machines Corporation
    Inventors: Harbans S. Sachdev, Willard E. Conley, Premlatha Jagannathan, Ahmad D. Katnani, Ranee W. Kwong, Leo L. Linehan, Steve S. Muira, Randolph J. Smith
  • Patent number: D323383
    Type: Grant
    Filed: December 16, 1988
    Date of Patent: January 21, 1992
    Inventors: Jerome A. Keays, Randolph J. Smith