Patents by Inventor John C. Lin
John C. Lin 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: 11884381Abstract: A simple-hinged flap assembly for a winged aircraft includes a simple-hinged flap having a leading airfoil section pivotably connected to a trailing airfoil section via a hinge, and an active flow control (AFC) actuator assembly. The assembly is connected to or integrally formed with the flap and includes upstream and downstream AFC actuators arranged in respective first and second rows, and collectively configured to provide first and second outlet mass flowrates. The downstream AFC actuators emit the second outlet mass flowrate at a rate that substantially exceeds the first outlet mass flowrate, such that the first outlet mass flowrate preconditions a boundary layer around the simple-hinged flap assembly. A winged aircraft includes a pneumatic power supply, fuselage, a wing connected to the fuselage, and the simple-hinged flap assembly.Type: GrantFiled: April 23, 2021Date of Patent: January 30, 2024Assignee: United States of America as represented by the Administrator of NASAInventors: John C. Lin, Latunia P. Melton, Mehti Koklu, Marlyn Y. Andino
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Publication number: 20230010008Abstract: A gas delivery system, for providing gas to a wearer, includes a first body having a first cavity. The first body is supportable to a side of a nose and mouth of the wearer. A first adapter receives gas from a gas supply and provide the gas to the first cavity. A plurality of first openings in the first body to create a bolus of gas about the nostrils of the nose and the mouth. The first body, and a second similar body may be supported by an adjustable bridge on opposite sides of the nose and mouth of the wearer.Type: ApplicationFiled: July 12, 2022Publication date: January 12, 2023Inventors: Michelle Lynn Freeman, Kevin Thomas Riutort, Klaus Dieter Torp, John C. Lin, Benjamin John Nickless, Michael Andrew Park, Kingsley Chauncy Wu
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Publication number: 20210331784Abstract: A simple-hinged flap assembly for a winged aircraft includes a simple-hinged flap having a leading airfoil section pivotably connected to a trailing airfoil section via a hinge, and an active flow control (AFC) actuator assembly. The assembly is connected to or integrally formed with the flap and includes upstream and downstream AFC actuators arranged in respective first and second rows, and collectively configured to provide first and second outlet mass flowrates. The downstream AFC actuators emit the second outlet mass flowrate at a rate that substantially exceeds the first outlet mass flowrate, such that the first outlet mass flowrate preconditions a boundary layer around the simple-hinged flap assembly. A winged aircraft includes a pneumatic power supply, fuselage, a wing connected to the fuselage, and the simple-hinged flap assembly.Type: ApplicationFiled: April 23, 2021Publication date: October 28, 2021Inventors: John C. Lin, Latunia P. Melton, Mehti Koklu, Marlyn Y. Andino
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Patent number: 10358208Abstract: Systems, methods, and devices are provided that provide hybrid flow control for a simple hinged flap high-lift system using sweeping jet (SWJ) actuators for active flow control (AFC) and adaptive vortex generators (AVGs) that may be actuated by flap deflection for passive flow control (PFC). The various embodiments may significantly reduce mass flow, differential pressure, and power requirements for equivalent flow control performance when compared to using AFC only. The various embodiments may reduce the power requirement of AFC, while still maintaining the aerodynamic performance enhancement necessary for high-lift applications using a simple hinged flap. The various embodiments may provide the necessary lift enhancement for a simple hinged flap high-lift system, while keeping the pneumatic power requirement (mass flow and pressure) for the AFC within an aircraft's capability for system integration.Type: GrantFiled: December 1, 2015Date of Patent: July 23, 2019Assignee: THE UNITED STATES OF AMERICA AS REPRESENTED BY THE ADMINISTRATOR OF NASAInventors: John C. Lin, Mehti Koklu
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Publication number: 20180281930Abstract: Disclosed are fluidic actuator systems for active flow control applications, methods for making/using such fluidic actuator systems, and vehicles equipped with fluidic actuators to modify airfoil aerodynamics. A Spanwise Traveling Electro-Pneumatic (STEP) actuator architecture for active flow control (AFC) generates variable actuation using high-speed electronic valves to move an array of discrete jets in a spanwise direction. The STEP actuator uses pneumatic power to provide flow control authority and electric power to minimize system power requirements. Disclosed STEP actuator systems help to reduce mass flow requirements for equivalent flow control performance, e.g., when compared to steady blowing systems. This flow control approach may provide necessary flow control authority, for example, for high-lift systems, while keeping pneumatic power requirements (e.g., mass flow and pressure) for the AFC system within an aircraft's capability for system integration.Type: ApplicationFiled: March 30, 2018Publication date: October 4, 2018Inventors: Mehti Koklu, Latunia P. Melton, John C. Lin, Marlyn Y. Andino
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Publication number: 20160280358Abstract: Systems, methods, and devices are provided that provide hybrid flow control for a simple hinged flap high-lift system using sweeping jet (SWJ) actuators for active flow control (AFC) and adaptive vortex generators (AVGs) that may be actuated by flap deflection for passive flow control (PFC). The various embodiments may significantly reduce mass flow, differential pressure, and power requirements for equivalent flow control performance when compared to using AFC only. The various embodiments may reduce the power requirement of AFC, while still maintaining the aerodynamic performance enhancement necessary for high-lift applications using a simple hinged flap. The various embodiments may provide the necessary lift enhancement for a simple hinged flap high-lift system, while keeping the pneumatic power requirement (mass flow and pressure) for the AFC within an aircraft's capability for system integration.Type: ApplicationFiled: December 1, 2015Publication date: September 29, 2016Inventors: John C. Lin, Mehti Koklu
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Patent number: 8695925Abstract: A system is provided for reducing aeroacoustic noise generated by an aircraft having wings equipped with trailing-edge flaps. The system includes a plurality of elastically deformable structures. Each structure is coupled to and along one of the side edges of one of the trailing-edge flaps, and is coupled to a portion of one of the wings that is adjacent to the one of the side edges. The structures elastically deform when the trailing-edge flaps are deployed away from the wings.Type: GrantFiled: December 15, 2011Date of Patent: April 15, 2014Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space AdministrationInventors: Mehdi R. Khorrami, David P. Lockard, James B. Moore, Ji Su, Travis L. Turner, John C. Lin, Karen M. Taminger, Seun K. Kahng, Scott A. Verden
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Publication number: 20120153086Abstract: A system is provided for reducing aeroacoustic noise generated by an aircraft having wings equipped with trailing-edge flaps. The system includes a plurality of elastically deformable structures. Each structure is coupled to and along one of the side edges of one of the trailing-edge flaps, and is coupled to a portion of one of the wings that is adjacent to the one of the side edges. The structures elastically deform when the trailing-edge flaps are deployed away from the wings.Type: ApplicationFiled: December 15, 2011Publication date: June 21, 2012Applicant: United States of America as represented by the Administrator of the National Aeronautics and SpacInventors: Mehdi R. Khorrami, David P. Lockard, James B. Moore, Ji Su, Travis L. Turner, John C. Lin, Karen M. Taminger, Seun K. Kahng, Scott A. Verden
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Publication number: 20090203610Abstract: The invention concerns methods for treating obesity, non-insulin dependent diabetes mellitus, metabolic syndrome, and other related diseases by administering an NT-4/5 polypeptide. The invention also concerns compositions and kits comprising an NT-4/5 polypeptide.Type: ApplicationFiled: March 13, 2009Publication date: August 13, 2009Inventors: Arnon Rosenthal, John C. Lin, Jennifer R. Stratton, Robert D. Klein, Jaume Pons
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Patent number: 6471157Abstract: A noise abatement device that is positioned adjacent to a body. The noise abatement device generally includes tabs or cavities which thicken the shear layer created by fluid flow over, around, or near the body, by creating horseshoe-shaped vortices; this thickening of the shear layer reduces the strength of fluctuations in the flow which produce noise.Type: GrantFiled: March 22, 2000Date of Patent: October 29, 2002Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space AdministrationInventors: Craig L. Streett, John C. Lin
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Patent number: 5736988Abstract: A method is used to access a sub-region of a two or more dimensional data region, in which said region is composed of a patchwork of individually addressable tiles. A hardware assisted mechanism is used to address, reformat, and composite data from each tile to produce a row-major subregion data stream to the consuming device. This method abstracts information about how the desired region is stored and addressed, so that further processing steps can process the data as a contiguous two or more dimensional space without regard to how the data is composited. This is particularly useful for doing image processing on graphics processing systems where source data is often stored in separately managed and addressed tiles.Type: GrantFiled: December 4, 1995Date of Patent: April 7, 1998Assignee: Silicon Graphics, Inc.Inventors: Robert Allen Shaw, Peter R. Birch, John C. Lin, Michael B. Nagy
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Patent number: 5717695Abstract: A method of gaining access to multiple signals internal to a semiconductor chip while minimizing the number of pins dedicated for diagnostic and testing purposes. A chip designer determines which internal signals would most likely be helpful in troubleshooting and debugging a new chip design. These signals are input to a selector. A configuration register is loaded with information specifying which ones of these signals is to be routed to the output pin(s) so that they can be monitored externally by a logic analyzer in real-time. The selector only routes the currently designated signals to the appropriate output pin(s). Subsequently, a different set of signals can be selectively routed to the output pin(s) in place of the originally chosen signals.Type: GrantFiled: December 4, 1995Date of Patent: February 10, 1998Assignee: Silicon Graphics, Inc.Inventors: Philip R. Manela, Peter R. Birch, John C. Lin, Daniel R. Ullum
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Patent number: 5657479Abstract: A hierarchical display list system and efficient processing method for same. The system provides a display list having discontiguous display list segments and an information retrieval system for same (e.g. DMA controller in one embodiment). Each display list segment (DLS) contains a call to a next to be processed DLS or a return. The call includes a push (which indicates the address of the return DLS) and also a jump control data (which indicates the address of the next to be processed DLS. The push and jump and also contain the length of the respective DLS's involved. DLSs can also contain return control data which include a POP and a jump. Nesting (e.g. the display list control path) is maintained by a display list stack. The discontiguous DLSs are separately stored in memory of the host processor.Type: GrantFiled: December 4, 1995Date of Patent: August 12, 1997Assignee: Silicon Graphics, Inc.Inventors: Robert Allen Shaw, Peter R. Birch, John C. Lin