Patents by Inventor Xiang Dong

Xiang Dong 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).

  • Publication number: 20110023644
    Abstract: A lifter assembly for actuating a needle of an automatic medication delivery device, includes a motor, a speed reduction device driven by the motor, an output shaft driven by the speed reduction device via a rigid transmission device, a driving lever configured to move the needle, the driving lever being connected to and driven by the output shaft, and a sensing device configured to sense the rotation position of the output shaft. The speed reduction device comprises a worm in mesh with a worm gear. The output shaft, the worm gear and the rigid transmission device cooperatively constitute a four-bar linkage mechanism.
    Type: Application
    Filed: July 30, 2010
    Publication date: February 3, 2011
    Inventors: Mohanlal RAMADOSS, Wai To Li, Yue Fu Zhu, Xiang Dong Jiang
  • Patent number: 7871826
    Abstract: A method for determining a carbon content value of a hydrocarbon-containing mixture. At least one composition-dependent bulk property of the hydrocarbon-containing mixture is measured and optionally at least one non-hydrocarbon component concentration is measured with the resulting measurements used in a carbon content correlation for calculating the carbon content of the hydrocarbon-containing mixture. The carbon content may be used in a hydrogen and/or synthesis gas production process for calculating a target flow rate of steam to be combined with the hydrocarbon-containing mixture to form a mixed feed having a target steam-to-carbon ratio.
    Type: Grant
    Filed: September 26, 2007
    Date of Patent: January 18, 2011
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Xiang-Dong Peng, Blaine Edward Herb, Matthew H. MacConnell, Winfried Stephen Hoglen
  • Patent number: 7852559
    Abstract: The present invention provides a diffusely-reflecting polarizer comprising: a first polymer which is amorphous and having a birefringence of less than about 0.02 and a second polymer, the first polymer being a continuous phase, and the second polymer being a disperse phase whose index of refraction differs from said continuous phase by greater than about 0.05 along a first axis and by less than about 0.05 along a second axis orthogonal to said first axis; wherein the diffuse-reflectivity of said first and second polymers taken together along at least one axis for at least one polarization state of electromagnetic radiation is at least about 50%, the diffuse transmittance of said first and second polymers taken together along at least one axis for at least one polarization state of electromagnetic radiation is at least about 50%.
    Type: Grant
    Filed: August 31, 2009
    Date of Patent: December 14, 2010
    Assignee: SKC Haas Display Films Co., Ltd.
    Inventors: Xiang-Dong Mi, Jehuda Greener, Charles C. Anderson, Thomas M. Laney
  • Publication number: 20100302807
    Abstract: The present invention provides a light guide plate comprising: (a) an input surface for receiving light from a light source into the light guide plate, (b) an output surface for emitting light, (c) a bottom surface opposing to the output surface, wherein discrete elements are located at least one of the output or bottom surface, the density function D(x) of the discrete elements has a minimal value Dmin(xmin) for 0.0<xmin<0.25 and a value D0(x0) for x0<xmin and satisfies: D0/Dmin?1>20%.
    Type: Application
    Filed: June 1, 2009
    Publication date: December 2, 2010
    Inventor: Xiang-Dong Mi
  • Patent number: 7824655
    Abstract: In a process for producing a hydrogen-containing gas, a hydrocarbon feed gas and steam are introduced into a reaction vessel containing a complex metal oxide and steam-hydrocarbon reforming catalyst thereby forming a combustible gas mixture comprising hydrogen. A regeneration gas comprising greater than 0.1 volume % oxygen up to and including 2 volume % oxygen is introduced into the reaction vessel to displace at least a portion of the combustible gas mixture from the reaction vessel. Subsequently, additional regeneration gases may be introduced into the reaction vessel. Numerous means for providing various regeneration gases are presented.
    Type: Grant
    Filed: January 25, 2006
    Date of Patent: November 2, 2010
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Terry Lee Slager, Diwakar Garg, Xiang-Dong Peng, Bryan Clair Hoke, Jr.
  • Publication number: 20100264373
    Abstract: A process for producing a hydrogen-containing product gas by catalytic steam-hydrocarbon reforming with an overall steam-to-carbon molar ratio between 1.5 and 2.4 for the process. The process stream is reacted in at least two prereformers prior to reaction in catalyst-containing tubes in a top-fired reformer furnace. The process stream is reacted adiabatically in the first prereformer, while the process stream is heated prior to being introduced into the second prereformer and/or the second prereformer is heated. The process avoids carbon formation on the catalyst in the catalyst-containing tubes in the primary reformer.
    Type: Application
    Filed: April 15, 2010
    Publication date: October 21, 2010
    Applicants: AIR PRODUCTS AND CHEMICALS, INC., TECHNIP USA, INC.
    Inventors: William Robert LICHT, Shankar NATARAJ, Xiang-Dong PENG, Diwakar GARG, Peter de GEEST, Eric S. WAGNER
  • Patent number: 7810776
    Abstract: An adjustable mechanism includes a first bottom plate, a second bottom plate, a receiving block positioned, a receiving block, and an elastic member. The receiving block is positioned between the first bottom plate and the second bottom plate. The receiving block defines a receiving cavity. The connecting member includes an inserted portion. The inserted portion defines a latching groove therein. The elastic member includes an elastic protrusion. The inserted portion and the elastic member are received in the receiving cavity in such manner that the elastic protrusion is received in the latching groove.
    Type: Grant
    Filed: April 29, 2009
    Date of Patent: October 12, 2010
    Assignees: Hong Fu Jin Precision Industry (ShenZhen) Co., Ltd., Hon Hai Precision Industry Co., Ltd.
    Inventors: Ben-Gui Long, Xiang-Dong Ruan
  • Publication number: 20100244325
    Abstract: A bistable display having one or more permanent hideable mark, and a method of forming the permanent hideable mark, are described. The permanent hideable mark can be hidden and revealed numerous times without loss of information.
    Type: Application
    Filed: June 4, 2010
    Publication date: September 30, 2010
    Inventors: Xiang-Dong Mi, Stanley W. Stephenson, III
  • Publication number: 20100224834
    Abstract: A method for determining a carbon content value of a hydrocarbon-containing mixture. At least one composition-dependent bulk property of the hydrocarbon-containing mixture is measured and optionally at least one non-hydrocarbon component concentration is measured with the resulting measurements used in a carbon content correlation for calculating the carbon content of the hydrocarbon-containing mixture. The carbon content may be used in a hydrogen and/or synthesis gas production process for calculating a target flow rate of steam to be combined with the hydrocarbon-containing mixture to form a mixed feed having a target steam-to-carbon ratio.
    Type: Application
    Filed: May 21, 2010
    Publication date: September 9, 2010
    Applicant: AIR PRODUCTS AND CHEMICALS, INC.
    Inventors: Xiang-Dong Peng, Blaine Edward Herb, Matthew H. MacConnell, Winfried Stephen Hoglen
  • Patent number: 7790059
    Abstract: A staged steam hydrocarbon reformer is disclosed having a chamber within which convectively heated reformer stages are enclosed. The reformer stages are tubes containing steam reforming catalyst. The stages are in serial fluid communication with one another through mixing vessels positioned between each stage. The first reforming stage is fed a mixture of steam and a gaseous hydrocarbon. Partially reformed gases having increased hydrogen concentration are produced at each stage and are mixed with additional gaseous hydrocarbon and optionally steam in the mixing vessels. Collection and distribution manifolds provide fluid communication between the reformer stages and the mixing vessels. A method is also disclosed in which partially reformed gases from a preceding stage are mixed with gaseous hydrocarbon and steam having a lower steam to carbon ratio than the fresh feed to the previous stage.
    Type: Grant
    Filed: October 18, 2007
    Date of Patent: September 7, 2010
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Xiang-Dong Peng, John Michael Repasky, Blaine Edward Herb
  • Publication number: 20100199319
    Abstract: The present invention discloses a method and system for establishing VoIP communication by means of digital video broadcasting network. The method comprises: a first terminal sending a VoIP call request to a source VoIP server to which the first terminal belongs, the VoIP call request containing an address of a second terminal; the source VoIP server forwarding the VoIP call request to a destination VoIP server to which the second terminal belongs; the first terminal or any one of VoIP servers in a forwarding path from the source VoIP server to the destination VoIP server forwarding the VoIP call request to a digital video broadcasting front-end server; the digital video broadcasting front-end server converting the VoIP call request into a call request modulated in digital video signals and broadcasting it within the digital video broadcasting network.
    Type: Application
    Filed: February 12, 2008
    Publication date: August 5, 2010
    Inventors: Yong Hua Lin, Xiang Dong Wang, Yu Yuan
  • Publication number: 20100140553
    Abstract: Reactive diluent fluid (22) is introduced into a stream of synthesis gas (or “syngas”) produced in a heat-generating unit such as a partial oxidation (“POX”) reactor (12) to cool the syngas and form a mixture of cooled syngas and reactive diluent fluid. Carbon dioxide and/or carbon components and/or hydrogen in the mixture of cooled syngas and reactive diluent fluid is reacted (26) with at least a portion of the reactive diluent fluid in the mixture to produce carbon monoxide-enriched and/or solid carbon depleted syngas which is fed into a secondary reformer unit (30) such as an enhanced heat transfer reformer in a heat exchange reformer process. An advantage of the invention is that problems with the mechanical integrity of the secondary unit arising from the high temperature of the syngas from the heat-generating unit are avoided.
    Type: Application
    Filed: February 11, 2010
    Publication date: June 10, 2010
    Applicant: GTLpetrol LLC
    Inventors: Shoou-I Wang, John Repasky, Shankar Nataraj, Xiang-Dong Peng
  • Publication number: 20100108833
    Abstract: An adjustable mechanism includes a first bottom plate, a second bottom plate, a receiving block positioned, a receiving block, and an elastic member. The receiving block is positioned between the first bottom plate and the second bottom plate. The receiving block defines a receiving cavity. The connecting member includes an inserted portion. The inserted portion defines a latching groove therein. The elastic member includes an elastic protrusion. The inserted portion and the elastic member are received in the receiving cavity in such manner that the elastic protrusion is received in the latching groove.
    Type: Application
    Filed: April 29, 2009
    Publication date: May 6, 2010
    Applicants: HONG FU JIN PRECISION INDUSTRY (ShenZhen) CO., LTD., HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: BEN-GUI LONG, XIANG-DONG RUAN
  • Publication number: 20100110342
    Abstract: The present invention provides a light redirecting article for redirecting light toward a target angle, the light redirecting article comprising: an input surface comprising a plurality of light redirecting structures. Each light redirecting structure has (i) a near surface having two slopes, sloping away from normal in one direction as defined by a first inclination base angle ?1, a second inclination angle ?2, and a first half apex angle ?2, for accepting incident illumination over a range of incident angles and (ii) a far surface sloping away from normal, in the opposite direction relative to the input surface, as defined by a second base angle ?1 and a second half apex angle ?1. In addition, light redirecting structures has (b) an output surface opposing to the input surface, wherein the near and far surfaces are opposed to each other at an angle (?1+?2), and the base angle ?1 is greater than or equal to 90 degrees.
    Type: Application
    Filed: November 4, 2009
    Publication date: May 6, 2010
    Applicant: SKC Haas Display Films Co., Ltd.
    Inventors: Xiang-Dong Mi, Xinyu Zhu, Jehuda Greener
  • Patent number: 7695708
    Abstract: A method for generating hydrogen in a production facility having a catalytic steam reformer, a boiler downstream of the catalytic steam reformer, optionally having a prereformer, and optionally having a shift reactor, wherein the reformer feed gas mixture is formed using a steam-containing recycle gas mixture which was formed from boiler effluent. The boiler generates steam which may be used to form the reformer feed gas mixture, used elsewhere in the production facility, and/or used for export steam.
    Type: Grant
    Filed: March 26, 2007
    Date of Patent: April 13, 2010
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Xiang-Dong Peng, James Richard O'Leary, Blaine Edward Herb, Krishnakumar Jambunathan
  • Patent number: 7692360
    Abstract: Apparatus for ultrasonic vibration-assisted machining, the apparatus comprising an ultrasonic transducer for generating ultrasonic waves in a vibration horn; first clamp on the vibration horn at a static node of the ultrasonic waves; and a second clamp between the first clamp and a lowermost end of the vibration horn. The second clamp comprises a linear bearing for reducing vibration of the vibration horn in a direction laterally of the vibration horn, and allowing vibration of the vibration horn in the direction of a longitudinal axial of the vibration horn.
    Type: Grant
    Filed: August 26, 2004
    Date of Patent: April 6, 2010
    Assignee: Agency for Science, Technology and Research
    Inventors: Xiang Dong Liu, Xin Ding
  • Patent number: 7670586
    Abstract: Reactive diluent fluid (22) is introduced into a stream of synthesis gas (or “syngas”) produced in a heat-generating unit such as a partial oxidation (“POX”) reactor (12) to cool the syngas and form a mixture of cooled syngas and reactive diluent fluid. Carbon dioxide and/or carbon components and/or hydrogen in the mixture of cooled syngas and reactive diluent fluid is reacted (26) with at least a portion of the reactive diluent fluid in the mixture to produce carbon monoxide-enriched and/or solid carbon depleted syngas which is fed into a secondary reformer unit (30) such as an enhanced heat transfer reformer in a heat exchange reformer process. An advantage of the invention is that problems with the mechanical integrity of the secondary unit arising from the high temperature of the syngas from the heat-generating unit are avoided.
    Type: Grant
    Filed: February 24, 2003
    Date of Patent: March 2, 2010
    Assignee: GTLpetrol LLC
    Inventors: Shoou-I Wang, John Repasky, Shankar Nataraj, Xiang-Dong Peng
  • Publication number: 20100037637
    Abstract: An innovative oil observer for estimating oil concentration and oil amount in a refrigerant compressor in a vapor compression cycle is described. The invention ensures the safe operation of the compressor by ensuring that adequate lubricant is present in the compressor. This oil observer is based on oil models for components of air conditioning and refrigeration systems. Oil models for HVAC components estimate oil mass and refrigerant mass in each component. With all component oil models and heat exchanger observers which provide the estimation of inner geometric lengths of two-phase flow heat exchangers, a system-level oil observer is established by integrating all component models. Experimental testing has been conducted to verify the performance of this oil observer for steady state operation and dynamic processes. The invention has direct applications in residential and commercial air conditioning and refrigeration systems.
    Type: Application
    Filed: October 21, 2009
    Publication date: February 18, 2010
    Applicant: MASSACHUSETTS INSTITUTE OF TECHNOLOGY
    Inventors: Xiang-Dong He, H. Harry Asada, Tao Cheng
  • Publication number: 20090323184
    Abstract: The present invention provides a diffusely-reflecting polarizer comprising: a first polymer which is amorphous and having a birefringence of less than about 0.02 and a second polymer, the first polymer being a continuous phase, and the second polymer being a disperse phase whose index of refraction differs from said continuous phase by greater than about 0.05 along a first axis and by less than about 0.05 along a second axis orthogonal to said first axis; wherein the diffuse-reflectivity of said first and second polymers taken together along at least one axis for at least one polarization state of electromagnetic radiation is at least about 50%, the diffuse transmittance of said first and second polymers taken together along at least one axis for at least one polarization state of electromagnetic radiation is at least about 50%.
    Type: Application
    Filed: August 31, 2009
    Publication date: December 31, 2009
    Inventors: Xiang-Dong Mi, Jehuda Greener, Charles C. Anderson, Thomas M. Laney
  • Patent number: 7633679
    Abstract: A light redirecting article redirects light toward a target angle. The light redirecting article is made from a material having a refractive index greater than 1.6. The light redirecting article has an input surface for accepting incident illumination over a range of incident angles and an output surface with a plurality of light redirecting structures, each light redirecting structure having a near surface and an exit surface for emitting an output light at an emitted light angle, wherein the exit surface is at an oblique angle relative to the plane of the input surface. For incident illumination at either of at least two different principal angles, each principal angle being greater than 60 degrees from normal and the principal angles having a difference of 5 degrees or greater, the emitted light angle is within 5 degrees of the target angle.
    Type: Grant
    Filed: December 13, 2005
    Date of Patent: December 15, 2009
    Assignee: SKC Haas Display Films Co., Ltd.
    Inventor: Xiang-Dong Mi