Patents by Inventor Randall J. Butcher

Randall J. Butcher 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).

  • Stator assembly for a gas turbine engine
    Patent number: 10801342
    Abstract: A vane cluster for a gas turbine engine includes a first end-of-cluster vane, a second end-of-cluster vane, a neighbor vane adjacent to the second end-of-cluster vane at an interface that includes an angled load interface therebetween; and a multiple of base vanes between the first end-of-cluster vane and the neighbor vane, the angled load interface different than an interface between each of the multiple of base vane.
    Type: Grant
    Filed: March 11, 2015
    Date of Patent: October 13, 2020
    Assignee: Raytheon Technologies Corporation
    Inventors: Mark David Ring, Scot A Webb, Mark J Rogers, Gerald D Cassella, Charles H Warner, Eric A Kuehne, Jonathan J Earl, Matthew M Zietala, Neil L Tatman, Randall J Butcher, Matthew R Willett, Nicholas R Leslie
  • Stator damper
    Patent number: 9845702
    Abstract: A stator damper is disclosed. The stator damper has a body section and a damper finger. The body section rests against a stator assembly and a portion of each damper finger rests against a compressor casing. The stator damper is radially compressed between the stator assembly and the compressor casing. Thus, the stator damper exerts a radial force against the stator assembly. In this manner, relative motion of the stator assembly is damped.
    Type: Grant
    Filed: April 27, 2015
    Date of Patent: December 19, 2017
    Assignee: UNITED TECHNOLOGIES CORPORATION
    Inventors: Nicholas R. Leslie, David P. Dube, Randall J. Butcher
  • Damper for stator assembly
    Patent number: 9790809
    Abstract: A stator assembly for a gas turbine engine according to an exemplary aspect of the present disclosure includes, among other things, at least one stator vane including a platform, a seal member connected to the platform, and a damper between the platform and the seal member. The damper includes a plurality of first fingers and a plurality of second fingers, which are provided in an alternating arrangement.
    Type: Grant
    Filed: March 24, 2015
    Date of Patent: October 17, 2017
    Assignee: United Technologies Corporation
    Inventors: David P. Dube, Nicholas R. Leslie, Randall J. Butcher
  • Stator Damper
    Publication number: 20160312800
    Abstract: A stator damper is disclosed. The stator damper has a body section and a damper finger. The body section rests against a stator assembly and a portion of each damper finger rests against a compressor casing. The stator damper is radially compressed between the stator assembly and the compressor casing. Thus, the stator damper exerts a radial force against the stator assembly. In this manner, relative motion of the stator assembly is damped.
    Type: Application
    Filed: April 27, 2015
    Publication date: October 27, 2016
    Inventors: Nicholas R. Leslie, David P. Dube, Randall J. Butcher
  • DAMPER FOR STATOR ASSEMBLY
    Publication number: 20160281531
    Abstract: A stator assembly for a gas turbine engine according to an exemplary aspect of the present disclosure includes, among other things, at least one stator vane including a platform, a seal member connected to the platform, and a damper between the platform and the seal member. The damper includes a plurality of first fingers and a plurality of second fingers, which are provided in an alternating arrangement.
    Type: Application
    Filed: March 24, 2015
    Publication date: September 29, 2016
    Inventors: David P. Dube, Nicholas R. Leslie, Randall J. Butcher
  • STATOR ASSEMBLY FOR A GAS TURBINE ENGINE
    Publication number: 20150292342
    Abstract: A vane cluster for a gas turbine engine includes a first end-of-cluster vane, a second end-of-cluster vane, a neighbor vane adjacent to said second end-of-cluster vane; and a multiple of base vanes between said first end-of-cluster vane and said neighbor vane.
    Type: Application
    Filed: March 11, 2015
    Publication date: October 15, 2015
    Inventors: Mark David Ring, Scot A. Webb, Mark J. Rogers, Gerald D. Cassella, Charles H. Warner, Eric A. Kuehne, Jonathan J. Earl, Matthew M. Zietala, Neil L. Tatman, Randall J. Butcher, Matthew R. Willett, Nicholas R. Leslie
  • Turbine blades
    Patent number: 7549846
    Abstract: A turbine blade is provided for use in a gas turbine engine. The turbine blade has a platform, an airfoil radially extending from the platform, and an attachment portion comprising an asymmetric root neck portion having a higher stress side and a lower stress side. The turbine blade may further have additional material and a compound fillet for dispersing strain in a region where the airfoil overhangs the neck portion.
    Type: Grant
    Filed: August 3, 2005
    Date of Patent: June 23, 2009
    Assignee: United Technologies Corporation
    Inventors: Bryan P. Dube, John W. Golan, Randall J. Butcher, Richard M. Salzillo