Patents by Inventor Craig T. Stambaugh
Craig T. Stambaugh 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: 11098677Abstract: This disclosure relates to a variable area nozzle of a gas turbine engine. The variable area nozzle includes, among other things, a control unit, a translatable structure, and a plurality of actuators configured to adjust the position of the translatable structure. The plurality of actuators are fluidly coupled to a common fluid source. The control unit is configured to provide instructions to at least one of the actuators to compensate for an asymmetric load from the translatable structure.Type: GrantFiled: February 27, 2018Date of Patent: August 24, 2021Assignee: HAMILTON SUNDSTRAND CORPORATIONInventor: Craig T. Stambaugh
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Publication number: 20180238267Abstract: This disclosure relates to a variable area nozzle of a gas turbine engine. The variable area nozzle includes, among other things, a control unit, a translatable structure, and a plurality of actuators configured to adjust the position of the translatable structure. The plurality of actuators are fluidly coupled to a common fluid source. The control unit is configured to provide instructions to at least one of the actuators to compensate for an asymmetric load from the translatable structure.Type: ApplicationFiled: February 27, 2018Publication date: August 23, 2018Inventor: Craig T. Stambaugh
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Patent number: 9951717Abstract: This disclosure relates to a variable area nozzle of a gas turbine engine. The variable area nozzle includes, among other things, a control unit, a translatable structure, and a plurality of actuators configured to adjust the position of the translatable structure. The plurality of actuators are fluidly coupled to a common fluid source. The control unit is configured to provide instructions to at least one of the actuators to compensate for an asymmetric load from the translatable structure.Type: GrantFiled: April 15, 2015Date of Patent: April 24, 2018Assignee: HAMILTON SUNDSTRAND CORPORATIONInventor: Craig T. Stambaugh
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Publication number: 20180051946Abstract: A heat exchanger arrangement includes a heat exchange body, a first fluid path extending through the heat exchange body, and a second fluid path extending through the heat exchange body in thermal communication with the first fluid path and fluidly isolated from the first fluid path. A bypass path is arranged externally of the heat exchange body and is fluidly connected in parallel with the first fluid path. A control module is operably connected to the bypass path to control temperature of fluids traversing the first fluid path and the second fluid path.Type: ApplicationFiled: August 17, 2016Publication date: February 22, 2018Inventor: Craig T. Stambaugh, SR.
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Patent number: 9828992Abstract: A vane pump includes a liner defining a cammed inner surface, a rotor rotatably disposed within the liner that has a plurality of vane slots, and a plurality of vanes slidably disposed within vane slots of the rotor and configured to extend away from the rotor and contact the cammed inner surface of the liner. The plurality of vanes include at least one sentinel vane that is configured to allow detection of wear on the sentinel vane.Type: GrantFiled: July 9, 2015Date of Patent: November 28, 2017Assignee: Hamilton Sundstrand CorporationInventor: Craig T. Stambaugh, Sr.
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Publication number: 20170009768Abstract: A vane pump includes a liner defining a cammed inner surface, a rotor rotatably disposed within the liner that has a plurality of vane slots, and a plurality of vanes slidably disposed within vane slots of the rotor and configured to extend away from the rotor and contact the cammed inner surface of the liner. The plurality of vanes include at least one sentinel vane that is configured to allow detection of wear on the sentinel vane.Type: ApplicationFiled: July 9, 2015Publication date: January 12, 2017Inventor: Craig T. Stambaugh, SR.
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Publication number: 20160305272Abstract: This disclosure relates to a variable area nozzle of a gas turbine engine. The variable area nozzle includes, among other things, a control unit, a translatable structure, and a plurality of actuators configured to adjust the position of the translatable structure. The plurality of actuators are fluidly coupled to a common fluid source. The control unit is configured to provide instructions to at least one of the actuators to compensate for an asymmetric load from the translatable structure.Type: ApplicationFiled: April 15, 2015Publication date: October 20, 2016Inventor: Craig T. Stambaugh
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Publication number: 20150308373Abstract: In one aspect, a variable pressure actuation system is provided. The variable pressure actuation system includes an actuator configured to control a variable geometry device, and a fluid line fluidly coupled to the actuator. The fluid line is configured to supply a pressurized fluid to the actuator to facilitate controlling the variable geometry device. The system further includes a load feedback device coupled to the actuator, the load feedback device configured to measure a load placed on the actuator by the variable geometry device.Type: ApplicationFiled: April 23, 2014Publication date: October 29, 2015Applicant: Hamilton Sundstrand CorporationInventor: Craig T. Stambaugh, SR.
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Patent number: 8893554Abstract: A temperature-compensated pressure sensor system includes a pressure sensing element, a temperature sensing device, and a temperature compensation network. The pressure sensing element provides a first voltage output representative of a sensed pressure value. The temperature sensing device provides a second voltage output representative of a sensed temperature value. The temperature compensation network is connected to receive the first voltage output provided by the pressure sensing element and the second voltage output provided by the temperature sensing device. The temperature compensation network provides a temperature compensated voltage representative of sensed pressure, wherein the second voltage output passively biases the temperature compensation network.Type: GrantFiled: November 20, 2012Date of Patent: November 25, 2014Assignee: Hamilton Sundstrand CorporationInventor: Craig T. Stambaugh
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Patent number: 5983621Abstract: A valve for controlling the flow of fuel within a gas turbine engine is provided. The fuel flow control valve includes a valve block disposed within a sleeve, and apparatus for displacing one of the sleeve or valve block relative to the other. The sleeve includes an inlet port and an exit port. The valve block includes an inlet gate and an exit gate. One of the sleeve or the valve block may be displaced relative to the other from a closed position where the gates close the ports and thereby prevent fluid flow through the valve via the ports, to a plurality of open positions where the gates less than completely close the ports, and thereby allow fluid flow through the valve via the ports.Type: GrantFiled: September 10, 1997Date of Patent: November 16, 1999Assignee: United Technologies CorporationInventors: Craig T. Stambaugh, Sr., Jeffrey W. Parker, Steven P. Sides
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Patent number: 5772182Abstract: A valve for controlling the flow of fuel within a gas turbine engine is provided. The fuel flow control valve includes a valve block disposed within a sleeve, and apparatus for displacing one of the sleeve or valve block relative to the other. The sleeve includes an inlet port and an exit port. The valve block includes an inlet gate and an exit gate. One of the sleeve or the valve block may be displaced relative to the other from a closed position where the gates close the ports and thereby prevent fluid flow through the valve via the ports, to a plurality of open positions where the gates less than completely close the ports, and thereby allow fluid flow through the valve via the ports.Type: GrantFiled: April 17, 1996Date of Patent: June 30, 1998Assignee: United Technologies CorporationInventors: Craig T. Stambaugh, Sr., Jeffrey W. Parker, Steven P. Sides
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Patent number: 5408412Abstract: A diagnostic system for use in troubleshooting malfunctions in an aircraft engine control system receives sensor data obtained during a flight. The sensor data is supplemented by signals indicative of the operation of the engine control system's computer. The combined data is downloaded to the diagnostic system. Included in the diagnostic system is an inference engine and knowledge database. The diagnostic system includes a computer for executing a plurality of algorithms by means of the inference engine using the downloaded data and knowledge database as input to aid the technician in correctly determining the source of malfunctions in a minimum of time. The diagnostic system is capable of processing "unknown" responses to diagnostic system inquiries and can retrocede a step or steps during the execution of diagnostic system algorithms.Type: GrantFiled: April 9, 1992Date of Patent: April 18, 1995Assignee: United Technologies CorporationInventors: George W. Hogg, Karen A. Carron, Brian D. Wright, Craig T. Stambaugh, Sr.