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).
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Patent number: 11203940Abstract: 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: GrantFiled: October 7, 2019Date of Patent: December 21, 2021Assignee: ROLLS-ROYCE CORPORATIONInventors: Brett J. Barker, John A. Weaver, Eric Koenig
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Publication number: 20200049016Abstract: 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: ApplicationFiled: October 7, 2019Publication date: February 13, 2020Applicant: Rolls-Royce CorporationInventors: Brett J. Barker, John A. Weaver, Eric Koenig
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Patent number: 10465526Abstract: 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: GrantFiled: November 15, 2016Date of Patent: November 5, 2019Assignee: Rolls-Royce CorporationInventors: Brett J. Barker, John A. Weaver, Eric Koenig
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Patent number: 10443419Abstract: 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: GrantFiled: March 25, 2016Date of Patent: October 15, 2019Assignees: Rolls-Royce North American Technologies Inc., Rolls-Royce CorporationInventors: David J. Thomas, John A. Weaver, Ted J. Freeman
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Patent number: 10370985Abstract: 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: GrantFiled: December 17, 2015Date of Patent: August 6, 2019Assignee: Rolls-Royce CorporationInventors: Jeffrey A. Walston, Aaron D. Sippel, John A. Weaver, David J. Thomas
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Patent number: 10370983Abstract: 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: GrantFiled: July 28, 2017Date of Patent: August 6, 2019Assignee: Rolls-Royce CorporationInventors: John A. Weaver, Tony A. Lambert
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Publication number: 20190032495Abstract: 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: ApplicationFiled: July 28, 2017Publication date: January 31, 2019Inventors: John A. Weaver, Tony A. Lambert
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Publication number: 20180135426Abstract: 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: ApplicationFiled: November 15, 2016Publication date: May 17, 2018Inventors: Brett J. Barker, John A. Weaver, Eric Koenig
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Publication number: 20160319687Abstract: 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: ApplicationFiled: March 25, 2016Publication date: November 3, 2016Inventors: David J. Thomas, John A. Weaver, Ted J. Freeman
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Publication number: 20160177753Abstract: 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: ApplicationFiled: December 17, 2015Publication date: June 23, 2016Inventors: Jeffrey A. Walston, Aaron D. Sippel, John A. Weaver, David J. Thomas
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Publication number: 20160169038Abstract: 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: ApplicationFiled: December 14, 2015Publication date: June 16, 2016Inventors: John A. Weaver, Joseph P. Lamusga
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Publication number: 20160053633Abstract: 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: ApplicationFiled: August 7, 2015Publication date: February 25, 2016Inventors: Michael D. Webb, Brett J. Barker, John A. Weaver
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Patent number: 4613037Abstract: 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: GrantFiled: July 9, 1985Date of Patent: September 23, 1986Assignee: Stewart Systems, Inc.Inventors: David B. Park, John A. Weaver, A. Scott Zumbrum
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Patent number: 4159662Abstract: 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: GrantFiled: November 8, 1978Date of Patent: July 3, 1979Assignee: Alto CorporationInventor: John A. Weaver