Patents by Inventor Gary F. Chaplin

Gary F. Chaplin 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: 6199371
    Abstract: The present invention relates to a thermally compliant liner for a gas turbine engine. The liner includes an outer wall, an inner wall spaced radially inwardly from the outer wall leaving a duct therebetween. A plurality of stiffeners are disposed in the duct. The stiffeners include a flexible medial portion which accommodates differential rates of thermal growth between the outer and inner walls. The stiffeners also include radially extending portions which in conjunction with the medial portion, minimize buckling of the liner due to pressure differentials.
    Type: Grant
    Filed: October 15, 1998
    Date of Patent: March 13, 2001
    Assignee: United Technologies Corporation
    Inventors: Keith S. Brewer, Gary F. Chaplin, David R. Olsen
  • Patent number: 4897021
    Abstract: A stator vane assembly 30 for a rotary machine is disclosed. The stator vane assembly includes an array of stator vanes 44 and an inner air seal 46. Various construction details which damp vibrational stresses in the vanes are developed. In one embodiment, the stator vanes slidably engage the inner air seal. The inner air seal is urged radially into sliding contact with the vanes at the inner ends 52 of the vanes by a resilient device such as a radial spring member 70. In one detailed embodiment, the stator vane has at least two airfoils 55b,c which are circumferentially spaced at their inner ends leaving a circumferential gap therebetween.
    Type: Grant
    Filed: June 2, 1988
    Date of Patent: January 30, 1990
    Assignee: United Technologies Corporation
    Inventors: Gary F. Chaplin, John L. Pannone, Michael A. Weisse
  • Patent number: 4722184
    Abstract: A stator assembly 28 for a gas turbine engine 10 is disclosed. The stator assembly includes an inner stator structure 54 and an outer stator structure 52. A plurality of tensioned members 50 extend radially between the structures to stiffen the structures against deflection and to restrain the structures against relative movement. In one embodiment, the inner stator structure is an engine casing 54, the outer stator structure 42 is a fan casing, and the radially extending members are a plurality of guide vanes 50.
    Type: Grant
    Filed: June 25, 1987
    Date of Patent: February 2, 1988
    Assignee: United Technologies Corporation
    Inventors: Gary F. Chaplin, Arthur W. Lucas, Jr.
  • Patent number: 4659285
    Abstract: The cover plates defining windage covers adjacent the broached rim of the turbine disk has the dual function of insulating the disk rim by defining a gap between the rim and turbine blades for receiving cooler air and insulating the disk from the gas path resulting in a cooler disk.
    Type: Grant
    Filed: July 23, 1984
    Date of Patent: April 21, 1987
    Assignee: United Technologies Corporation
    Inventors: Robert R. Kalogeros, Gary F. Chaplin
  • Patent number: 4655683
    Abstract: A stator seal land and supporting structure suitable for use in an axial flow rotary machine is disclosed. Included are concepts for matching the thermal response of the seal land to the rotor assembly and for inhibiting rolling or twisting of the seal land under changing thermal conditions. The seal land is free to expand and contract in diameter independently of the supporting stator structure.
    Type: Grant
    Filed: December 24, 1984
    Date of Patent: April 7, 1987
    Assignee: United Technologies Corporation
    Inventor: Gary F. Chaplin
  • Patent number: 4648792
    Abstract: A stage of circumferentially disposed turbine stator vane clusters and arcuate, circumferentially disposed segments of a rotor outer air seal disposed on one side of the stator stage is secured to an annular attachment ring which is integral with a surrounding turbine case. The outer seal segments are trapped axially between stator vane clusters and the radially inner ends of arcuate support segments, and are also radially supported thereby. The radially inner ends of the support segments are trapped axially between the stator vane clusters and the annular attachment ring, and are also supported radially thereby. This boltless attachment reduces the number of parts while providing strong radially support and accurate radial location for the seal segments.
    Type: Grant
    Filed: April 30, 1985
    Date of Patent: March 10, 1987
    Assignee: United Technologies Corporation
    Inventors: Walter J. Baran, Jr., Gary F. Chaplin, Vincent P. Laurello
  • Patent number: 4337016
    Abstract: Apparatus for confining cooling air to a flowpath between an outer case and adjacent structure is disclosed. Various construction details which enable the means to sealingly engage the adjacent structure to block the leakage of cooling air and to accommodate changes in diameter are discussed. The means has dual walls which are segmented.
    Type: Grant
    Filed: December 13, 1979
    Date of Patent: June 29, 1982
    Assignee: United Technologies Corporation
    Inventor: Gary F. Chaplin
  • Patent number: 4336943
    Abstract: A flanged joint 20 having a seal ring 38 is disclosed. The flanged joint includes two cylindrical case structures 24,26. The seal ring is disposed in a groove 40 formed between two outwardly convergent sidewalls 32,34. The seal ring has a wedge-shaped cross section 48 and may operate with a higher coefficient of thermal expansion than the adjacent case structure or at a higher temperature than the adjacent case structure.
    Type: Grant
    Filed: November 14, 1980
    Date of Patent: June 29, 1982
    Assignee: United Technologies Corporation
    Inventor: Gary F. Chaplin
  • Patent number: 4318668
    Abstract: A seal means for confining cooling air to a cooling air flowpath extending between a case structure and a flowpath for hot working medium gases in a gas turbine engine is disclosed. Various construction details which enable the seal means to block the leakage of cooling air into the working medium flowpath are discussed. The seal means has a center section which expands axially in response to the temperature of the working medium gases to develop a sealing force.
    Type: Grant
    Filed: November 1, 1979
    Date of Patent: March 9, 1982
    Assignee: United Technologies Corporation
    Inventors: Gary F. Chaplin, Frederick M. Schwarz, James G. Griffin
  • Patent number: 4314793
    Abstract: A seal member for a gas turbine engine is disclosed. Various construction details which ensure an adequate fatigue life and increase the sealing effectiveness of the member during engine operation are developed. A metal diaphragm extends from a nonrotating structure inwardly of the engine flow path to engage the stator vanes at engine operating temperature.
    Type: Grant
    Filed: December 20, 1978
    Date of Patent: February 9, 1982
    Assignee: United Technologies Corporation
    Inventors: Francis L. DeTolla, Gary F. Chaplin
  • Patent number: 4314792
    Abstract: A seal member for a gas turbine engine is disclosed. Various construction details which increase sealing effectiveness and which enable the damping of vibrations in a plurality of vanes are developed. The seal member is disposed between the engine case and a plurality of stator vanes. The seal member has a flexible center section which is compressed in the installed position.
    Type: Grant
    Filed: December 20, 1978
    Date of Patent: February 9, 1982
    Assignee: United Technologies Corporation
    Inventor: Gary F. Chaplin
  • Patent number: 4247248
    Abstract: A support structure for an outer air seal of a gas turbine engine is disclosed. Various construction details which improve the sealing effectiveness of the outer air seal are developed. The outer air seal is held in close proximity to the rotor blades by the circumferentially adjacent support segments.
    Type: Grant
    Filed: December 20, 1978
    Date of Patent: January 27, 1981
    Assignee: United Technologies Corporation
    Inventors: Gary F. Chaplin, Francis L. DeTolla, James G. Griffin