Patents by Inventor John A. Weaver

John A. Weaver 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: 11203940
    Abstract: An airfoil including a spar and a cover sheet that are configured for cooling. The spar includes standoffs and a leading edge wall. The standoffs are disposed along a pressure and/or suction side. A pressure-side panel and a suction-side panel are coupled to the standoffs and/or the leading edge wall. Leading ends of the pressure-side panel and the suction-side panel are disposed adjacent to one another proximate to the leading edge. The standoffs extend beyond the pressure-side leading end toward the leading edge wall. At least one of the leading ends of the pressure-side and suction-side panels defines a notch to form an outlet port at the leading edge. Standoffs may be disposed to define grooves in between in communication with the outlet port.
    Type: Grant
    Filed: October 7, 2019
    Date of Patent: December 21, 2021
    Assignee: ROLLS-ROYCE CORPORATION
    Inventors: Brett J. Barker, John A. Weaver, Eric Koenig
  • Publication number: 20200049016
    Abstract: An airfoil including a spar and a cover sheet that are configured for cooling. The spar includes standoffs and a leading edge wall. The standoffs are disposed along a pressure and/or suction side. A pressure-side panel and a suction-side panel are coupled to the standoffs and/or the leading edge wall. Leading ends of the pressure-side panel and the suction-side panel are disposed adjacent to one another proximate to the leading edge. The standoffs extend beyond the pressure-side leading end toward the leading edge wall. At least one of the leading ends of the pressure-side and suction-side panels defines a notch to form an outlet port at the leading edge. Standoffs may be disposed to define grooves in between in communication with the outlet port.
    Type: Application
    Filed: October 7, 2019
    Publication date: February 13, 2020
    Applicant: Rolls-Royce Corporation
    Inventors: Brett J. Barker, John A. Weaver, Eric Koenig
  • Patent number: 10465526
    Abstract: An airfoil including a spar and a cover sheet that are configured for cooling. The spar includes standoffs and a leading edge wall. The standoffs are disposed along a pressure and/or suction side. A pressure-side panel and a suction-side panel are coupled to the standoffs and/or the leading edge wall. Leading ends of the pressure-side panel and the suction-side panel are disposed adjacent to one another proximate to the leading edge. The standoffs extend beyond the pressure-side leading end toward the leading edge wall. At least one of the leading ends of the pressure-side and suction-side panels defines a notch to form an outlet port at the leading edge. Standoffs may be disposed to define grooves in between in communication with the outlet port.
    Type: Grant
    Filed: November 15, 2016
    Date of Patent: November 5, 2019
    Assignee: Rolls-Royce Corporation
    Inventors: Brett J. Barker, John A. Weaver, Eric Koenig
  • Patent number: 10443419
    Abstract: A gas turbine engine assembly includes a seal formed by the interface between first and second support components. The support components are each formed to include a notch. Adjacent notches cooperate to form a space when assembled. A seal member is located in the space.
    Type: Grant
    Filed: March 25, 2016
    Date of Patent: October 15, 2019
    Assignees: Rolls-Royce North American Technologies Inc., Rolls-Royce Corporation
    Inventors: David J. Thomas, John A. Weaver, Ted J. Freeman
  • Patent number: 10370985
    Abstract: A turbine shroud for a gas turbine engine includes an annular metallic carrier, a blade track, and a cross-key connection formed between the annular metallic carrier and the ceramic blade track. The cross-key connection locates the ceramic blade track relative to the metallic carrier.
    Type: Grant
    Filed: December 17, 2015
    Date of Patent: August 6, 2019
    Assignee: Rolls-Royce Corporation
    Inventors: Jeffrey A. Walston, Aaron D. Sippel, John A. Weaver, David J. Thomas
  • Patent number: 10370983
    Abstract: An air distribution system for cooling a component in a heated gas environment may be provided, where the air distribution system includes a wall and a plate. The wall includes an inner surface, an outer surface configured to be exposed to the heated gas environment, and a protrusion extending from the inner surface of the wall. The plate is fixedly coupled to the protrusion and is space apart from the inner surface of the wall. The plate includes an outer edge. A passage is defined between the plate and the inner surface of the wall. The inlet of the passage is defined by the outer edge of the plate.
    Type: Grant
    Filed: July 28, 2017
    Date of Patent: August 6, 2019
    Assignee: Rolls-Royce Corporation
    Inventors: John A. Weaver, Tony A. Lambert
  • Publication number: 20190032495
    Abstract: An air distribution system for cooling a component in a heated gas environment may be provided, where the air distribution system includes a wall and a plate. The wall includes an inner surface, an outer surface configured to be exposed to the heated gas environment, and a protrusion extending from the inner surface of the wall. The plate is fixedly coupled to the protrusion and is space apart from the inner surface of the wall. The plate includes an outer edge. A passage is defined between the plate and the inner surface of the wall. The inlet of the passage is defined by the outer edge of the plate.
    Type: Application
    Filed: July 28, 2017
    Publication date: January 31, 2019
    Inventors: John A. Weaver, Tony A. Lambert
  • Publication number: 20180135426
    Abstract: An airfoil including a spar and a cover sheet that are configured for cooling. The spar includes standoffs and a leading edge wall. The standoffs are disposed along a pressure and/or suction side. A pressure-side panel and a suction-side panel are coupled to the standoffs and/or the leading edge wall. Leading ends of the pressure-side panel and the suction-side panel are disposed adjacent to one another proximate to the leading edge. The standoffs extend beyond the pressure-side leading end toward the leading edge wall. At least one of the leading ends of the pressure-side and suction-side panels defines a notch to form an outlet port at the leading edge. Standoffs may be disposed to define grooves in between in communication with the outlet port.
    Type: Application
    Filed: November 15, 2016
    Publication date: May 17, 2018
    Inventors: Brett J. Barker, John A. Weaver, Eric Koenig
  • Publication number: 20160319687
    Abstract: A gas turbine engine assembly includes a seal formed by the interface between first and second support components. The support components are each formed to include a notch. Adjacent notches cooperate to form a space when assembled. A seal member is located in the space.
    Type: Application
    Filed: March 25, 2016
    Publication date: November 3, 2016
    Inventors: David J. Thomas, John A. Weaver, Ted J. Freeman
  • Publication number: 20160177753
    Abstract: A turbine shroud for a gas turbine engine includes an annular metallic carrier, a blade track, and a cross-key connection formed between the annular metallic carrier and the ceramic blade track. The cross-key connection locates the ceramic blade track relative to the metallic carrier.
    Type: Application
    Filed: December 17, 2015
    Publication date: June 23, 2016
    Inventors: Jeffrey A. Walston, Aaron D. Sippel, John A. Weaver, David J. Thomas
  • Publication number: 20160169038
    Abstract: A turbine component including a first frame and a second frame coupled to the first frame. The second frame includes an impingement hole to direct a fluid at the first frame.
    Type: Application
    Filed: December 14, 2015
    Publication date: June 16, 2016
    Inventors: John A. Weaver, Joseph P. Lamusga
  • Publication number: 20160053633
    Abstract: A seal may be used in a shroud ring of a turbine. The seal includes a first strip, a second strip, and a flow-control band that extends between and interconnects the first and second strips to control the flow of a fluid through the seal.
    Type: Application
    Filed: August 7, 2015
    Publication date: February 25, 2016
    Inventors: Michael D. Webb, Brett J. Barker, John A. Weaver
  • Patent number: 4613037
    Abstract: A longitudinally elongate conveyor belt is adapted for conveying a plurality of transversely spaced items. The belt comprises a plurality of interconnected, generally transversely extending rod members which are spaced apart along the longitudinal direction. Each rod member is upwardly arched to define first and second item-supporting segments. The first and second segments diverge in the downward direction so as to resist a tendency for the first and second items to be displaced by belt sag. An outer edge of the belt may be elevated relative to the inner edge to compensate for centrifugal forces.
    Type: Grant
    Filed: July 9, 1985
    Date of Patent: September 23, 1986
    Assignee: Stewart Systems, Inc.
    Inventors: David B. Park, John A. Weaver, A. Scott Zumbrum
  • Patent number: 4159662
    Abstract: A muffin splitter having a muffin conveyor and tining assemblies located to either side of the conveyor for tining the muffins as they move along the conveyor. The tining apparatus may be deactivated to permit muffins to be passed along the conveyor without tining.
    Type: Grant
    Filed: November 8, 1978
    Date of Patent: July 3, 1979
    Assignee: Alto Corporation
    Inventor: John A. Weaver