Patents by Inventor John Liu

John Liu 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: 8298682
    Abstract: Monolithic metal bodies (e.g., hard aluminum alloys) comprising a continuous microcavity contained within the body are disclosed. The ratio of the cross-sectional area of the metal body to the cross-sectional area of the microcavity may be not greater than 10. The produced metal bodies may be used in structural applications (e.g., aerospace vehicles) to monitor or test the integrity of the metal body.
    Type: Grant
    Filed: July 3, 2008
    Date of Patent: October 30, 2012
    Assignee: Alcoa Inc.
    Inventors: Hasso Weiland, Markus Heinimann, Robert C. Pahl, Achim Hofmann, John Liu
  • Publication number: 20120262116
    Abstract: A portable charging system includes a bag configured to receive an electronic device, a battery, a docking station, a charging apparatus and a cord. Another portable system includes a bag, a charging system, and a cord for charging an electronic device. A battery includes a battery cell for storing energy, an external case surrounding the battery cell, and an electrical contact for transmitting electricity therethrough.
    Type: Application
    Filed: April 18, 2011
    Publication date: October 18, 2012
    Applicant: FKA Distributing Co. d/b/a HoMedics, Inc.
    Inventors: Roman S. Ferber, Jeff Wollenzien, John Liu, Hing Wah Tsang
  • Publication number: 20120262117
    Abstract: A portable system for charging an electronic device has a charging system located within a bag, and an audio notification module for indicating a charging status of at least one of the battery charging system and the electronic device. Another portable system has a charging system located within a bag with a charging port accessible from an exterior of the bag. A charging apparatus is configured to connect to the charging port through the bag to provide power to the charging system. Yet another portable system has a charging system located within a bag with a battery check button accessible from an exterior of the bag and lights visible from an exterior of the bag. Upon activation of the battery check button by a user, a light module is configured to illuminate the lights to provide information regarding a state of charge of the charging system.
    Type: Application
    Filed: January 10, 2012
    Publication date: October 18, 2012
    Applicant: FKA DISTRIBUTING CO., D/B/A HOMEDICS, INC.
    Inventors: Roman S. Ferber, Jeff Wollenzien, John Liu, Hing Wah Tsang
  • Publication number: 20120227453
    Abstract: Metal sheets and plates having friction-reducing textured surfaces and methods of manufacturing these metal sheets and plates are disclosed herein. In an embodiment, there is provided a transportation vessel that includes at least one metal product having at least one surface that is substantially grooved, wherein the substantially grooved surface forms a riblet topography, the riblet topography including a multiplicity of adjacent permanently rolled longitudinal riblets running along at least a part of the surface, and wherein the riblet topography is coated with at least one coating sufficiently designed and applied to preserve the riblet topography. In an embodiment, the multiplicity of adjacent permanently rolled longitudinal riblets results in a friction-reducing textured surface. In an embodiment, metal product is used in fabricating at least a portion of an aircraft. In an embodiment, metal product is used in fabricating at least a portion of a rotor blade.
    Type: Application
    Filed: March 20, 2012
    Publication date: September 13, 2012
    Applicant: Alcoa Inc.
    Inventors: Ming Li, James M. Marinelli, Jianto Liu, Paul E. Magnusen, Simon Sheu, Markus B. Heinimann, John Liu, Luis Fanor Vega
  • Patent number: 8083870
    Abstract: Aluminum alloy products, such as plate, forgings and extrusions, suitable for use in making aerospace structural components like integral wing spars, ribs and webs, comprises about: 6 to 10 wt. % Zn; 1.2 to 1.9 wt. % Mg; 1.2 to 2.2 wt. % Cu, with Mg?(Cu+0.3); and 0.05 to 0.4 wt. % Zr, the balance Al, incidental elements and impurities. Preferably, the alloy contains about 6.9 to 8.5 wt. % Zn; 1.2 to 1.7 wt. % Mg; 1.3 to 2 wt. % Cu. This alloy provides improved combinations of strength and fracture toughness in thick gauges. When artificially aged per the three stage method of preferred embodiments, this alloy also achieves superior SCC performance, including under seacoast conditions.
    Type: Grant
    Filed: February 7, 2005
    Date of Patent: December 27, 2011
    Assignee: Alcoa Inc.
    Inventors: Dhruba J. Chakrabarti, John Liu, Jay H. Goodman, Gregory B. Venema, Ralph R. Sawtell, Cynthia M. Krist, Robert W. Westerlund
  • Publication number: 20110268603
    Abstract: Aluminum alloy products, such as plate, forgings and extrusions, suitable for use in making aerospace structural components like integral wing spars, ribs and webs, comprises about: 6 to 10 wt. % Zn; 1.2 to 1.9 wt. % Mg; 1.2 to 2.2 wt. % Cu, with Mg?(Cu+0.3); and 0.05 to 0.4 wt. % Zr, the balance Al, incidental elements and impurities. Preferably, the alloy contains about 6.9 to 8.5 wt. % Zn; 1.2 to 1.7 wt. % Mg; 1.3 to 2 wt. % Cu. This alloy provides improved combinations of strength and fracture toughness in thick gauges. When artificially aged per the 3-stage method of preferred embodiments, this alloy also achieves superior SCC performance, including under seacoast conditions.
    Type: Application
    Filed: July 7, 2011
    Publication date: November 3, 2011
    Applicant: Alcoa Inc.
    Inventors: Dhruba J. Chakrabarti, John Liu, Jay H. Goodman, Gregory B. Venema, Ralph R. Sawtell, Cynthia M. Krist, Robert W. Westerlund
  • Publication number: 20110012540
    Abstract: A multipurpose flame light is disclosed, which is made up of a body and an ON-OFF control unit, where the body is formed by a lighting module of a neat and ordered array of multiple LED lamps and an actuator for offering stable electric voltage and current to the lighting module. The body is provided with a base at its bottom and a wire slot at its one side, where the base is further provided with a control system in it, which comprises a memory and a CPU. The ON-OFF control unit is connected to the control system through a data line passing through the wire slot. And the ON-OFF control unit further comprises an on-off switch and a fine-tuning switch.
    Type: Application
    Filed: July 17, 2009
    Publication date: January 20, 2011
    Applicant: Superiorlite Corporation Limited
    Inventors: Charles Lan, John Liu
  • Publication number: 20100186840
    Abstract: Multi-valve autoregulatory microfluidic devices and methods are described. The described devices and methods offer improved performance and new means of tuning autoregulatory effects in microfluidic devices.
    Type: Application
    Filed: December 11, 2009
    Publication date: July 29, 2010
    Inventors: Emil P. KARTALOV, John LIU, Axel SCHERER, Clive R. TAYLOR
  • Patent number: 7744573
    Abstract: A closed blood sampling system within a pressure monitoring line having a control valve that enables a clearance reservoir to be isolated from the pressure column when no samples are being taken. The valve is a stopcock-like device that includes a rotating valve member and attached control handle with clear visible and tactile indicators for the mode of operation. The rotating valve member has a number of internal and circumferential channels for connecting or disconnecting select ports in the core of the valve. By isolating the clearance reservoir, the quality of the pressure signal is improved such that the sampling line can be lengthened for greater convenience in the intensive care or operating room. The valve may also incorporate a blunt cannula sampling site therewithin.
    Type: Grant
    Filed: September 13, 2006
    Date of Patent: June 29, 2010
    Assignee: Edwards Lifesciences Corporation
    Inventors: Mark Gordon, John Liu, Scott Couchman, Hagay Drori
  • Publication number: 20100127125
    Abstract: Metal sheets and plates having friction-reducing textured surfaces and methods of manufacturing these metal sheets and plates are disclosed herein. In an embodiment, there is provided a transportation vessel that includes at least one metal product having at least one surface that is substantially grooved, wherein the substantially grooved surface forms a riblet topography, the riblet topography including a multiplicity of adjacent permanently rolled longitudinal riblets running along at least a part of the surface, and wherein the riblet topography is coated with at least one coating sufficiently designed and applied to preserve the riblet topography. In an embodiment, the multiplicity of adjacent permanently rolled longitudinal riblets results in a friction-reducing textured surface. In an embodiment, metal product is used in fabricating at least a portion of an aircraft. In an embodiment, metal product is used in fabricating at least a portion of a rotor blade.
    Type: Application
    Filed: August 5, 2009
    Publication date: May 27, 2010
    Inventors: Ming Li, James M. Marinelli, Jianto Liu, Paul E. Magnusen, Simon Sheu, Markus B. Heinimann, John Liu, Luis Fanor Vega
  • Patent number: 7678205
    Abstract: Aluminum alloy products, such as plate, forgings and extrusions, suitable for use in making aerospace structural components like integral wing spars, ribs and webs, comprises about: 6 to 10 wt. % Zn; 1.2 to 1.9 wt. % Mg; 1.2 to 2.2 wt. % Cu, with Mg?(Cu+0.3); and 0.05 to 0.4 wt. % Zr, the balance Al, incidental elements and impurities. Preferably, the alloy contains about 6.9 to 8.5 wt. % Zn; 1.2 to 1.7 wt. % Mg; 1.3 to 2 wt. % Cu. This alloy provides improved combinations of strength and fracture toughness in thick gauges. When artificially aged per the three stage method of preferred embodiments, this alloy also achieves superior SCC performance, including under seacoast conditions.
    Type: Grant
    Filed: November 28, 2005
    Date of Patent: March 16, 2010
    Assignee: Alcoa Inc.
    Inventors: Dhruba J. Chakrabarti, John Liu, Jay H. Goodman, Gregory B. Venema, Ralph R. Sawtell, Cynthia M. Krist, Robert W. Westerlund
  • Patent number: 7647837
    Abstract: An active temperature differential compensation for strain gage based sensors. An array of temperature sensors can be placed at the gage locations to measure the difference in temperature that induces strain on the strain gages. The output of the temperature sensor network can be placed in series with the strain gage network to directly compensate the induced voltage caused by the temperature gradient and/or employed as the input of a mathematical algorithm that can compensate the output from the strain gage bridge to dynamically correct unwanted thermally induced strain in the strain gages.
    Type: Grant
    Filed: August 29, 2007
    Date of Patent: January 19, 2010
    Assignee: Honeywell International Inc.
    Inventors: Michael E. Moran, Sean D. Gregory, Jason R. Robinson, John Liu
  • Publication number: 20090056466
    Abstract: An active temperature differential compensation for strain gage based sensors. An array of temperature sensors can be placed at the gage locations to measure the difference in temperature that induces strain on the strain gages. The output of the temperature sensor network can be placed in series with the strain gage network to directly compensate the induced voltage caused by the temperature gradient and/or employed as the input of a mathematical algorithm that can compensate the output from the strain gage bridge to dynamically correct unwanted thermally induced strain in the strain gages.
    Type: Application
    Filed: August 29, 2007
    Publication date: March 5, 2009
    Inventors: Michael E. Moran, Sean D. Gregory, Jason R. Robinson, John Liu
  • Publication number: 20090011272
    Abstract: Monolithic metal bodies (e.g., hard aluminum alloys) comprising a continuous microcavity contained within the body are disclosed. The ratio of the cross-sectional area of the metal body to the cross-sectional area of the microcavity may be not greater than 10. The produced metal bodies may be used in structural applications (e.g., aerospace vehicles) to monitor or test the integrity of the metal body.
    Type: Application
    Filed: July 3, 2008
    Publication date: January 8, 2009
    Applicant: Alcoa Inc.
    Inventors: Hasso Weiland, Markus Heinimann, Robert C. Pahl, Achim Hofmann, John Liu
  • Publication number: 20070296452
    Abstract: The present invention provides methods and systems for testing and inspection of a display panel. The methods involve the application of voltages to rollers or testing conductive films. By applying a potential difference to the appropriate rollers or testing conductive films, different optical states of a display panel can be displayed for inspection.
    Type: Application
    Filed: May 22, 2007
    Publication date: December 27, 2007
    Inventors: Gary Kang, John Liu, Wanheng Wang, Yi-Shung Chaug
  • Publication number: 20070187604
    Abstract: A quantum well infrared photodetector (QWIP) focal plane array having structures, each structure having stacked layers of quantum wells and a reflective grating to provide polarization sensitivity. The reflective grating is etched to provide electrical contacts for individual pixels. The reflective gratings comprise grooves, where the grooves for a particular structure run in a particular direction to provide polarization sensitivity. Each structure may comprise groups of quantum well layers, each group sensitive to a particular frequency band. By shorting out unwanted quantum well layers, and by forming the reflective gratings to come into contact with the quantum well layers having a particular frequency band sensitivity, the pixels in the QWIP focal plane array may provide frequency and polarization information.
    Type: Application
    Filed: January 16, 2007
    Publication date: August 16, 2007
    Inventors: Sumith Bandara, Sarath Gunapala, John Liu
  • Publication number: 20070179407
    Abstract: A closed blood sampling system within a pressure monitoring line having a control valve that enables a clearance reservoir to be isolated from the pressure column when no samples are being taken. The valve is a stopcock-like device that includes a rotating valve member and attached control handle with clear visible and tactile indicators for the mode of operation. The rotating valve member has a number of internal and circumferential channels for connecting or disconnecting select ports in the core of the valve. By isolating the clearance reservoir, the quality of the pressure signal is improved such that the sampling line can be lengthened for greater convenience in the intensive care or operating room. The valve may also incorporate a blunt cannula sampling site therewithin.
    Type: Application
    Filed: September 13, 2006
    Publication date: August 2, 2007
    Inventors: Mark Gordon, John Liu, Scott Couchman, Hagay Drori
  • Patent number: 7238094
    Abstract: A belt oscillating apparatus of a belt sander, wherein the belt sander includes a machine frame, a driving wheel, a driven wheel, a sand belt mounted on the driving wheel and the driven wheel, and the belt oscillating apparatus is mounted on the machine frame, comprising two oscillating devices, two transmission devices and a valve. The oscillating devices are pivoted on the machine frame and pivoting the driven wheel therebetween. The transmission devices connect the oscillating devices and the valve. A pneumatic power is provided to the valve to move the driven wheel via the transmissions and the oscillating device. The oscillating devices and the transmission device are working alternately by the sand belt touches the oscillating devices, such that the sand belt is reciprocated between the oscillating devices.
    Type: Grant
    Filed: August 4, 2005
    Date of Patent: July 3, 2007
    Inventor: John Liu
  • Patent number: D616543
    Type: Grant
    Filed: August 29, 2008
    Date of Patent: May 25, 2010
    Assignee: Edwards Lifesciences Corporation
    Inventors: Greg Bak-Boychuk, Mark Wright, John Liu, Carlyn Solomon
  • Patent number: D631543
    Type: Grant
    Filed: April 14, 2010
    Date of Patent: January 25, 2011
    Assignee: Edwards Lifesciences Corporation
    Inventors: Greg Bak-Boychuk, Mark Wright, John Liu, Carlyn Solomon