Patents by Inventor Ka Lok

Ka Lok 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: 8544527
    Abstract: A process for providing a blended cooling air stream to a cooling zone cooler in a continuous catalyst regeneration system. The process includes removing a first effluent stream from a regeneration tower, providing the first effluent stream to a regeneration cooler; providing a first air stream to the regeneration cooler to form a heated first air stream, combining at least a portion of the heated first air stream with a second air stream to form a blended cooling air stream, and providing the blended cooling air stream to a cooling zone cooler.
    Type: Grant
    Filed: December 23, 2008
    Date of Patent: October 1, 2013
    Assignee: UOP LLC
    Inventors: Ka Lok, Christopher Naunheimer, Matthew Zuraski
  • Publication number: 20130174025
    Abstract: Visual comparison of document versions is described. In some implementations, versions of a document can be quickly displayed using a single user input. In some implementations, a displayed page of a version of the document can be replaced by a corresponding page of another version of the document.
    Type: Application
    Filed: December 29, 2011
    Publication date: July 4, 2013
    Inventors: Keng Fai Lee, Wing Hung Chan, Ka Lok Li, Sidney Hok Nang Fong, Siu Lung Tam, Wang Chiu Chan, Pui Ki Chan, Oi Ying Angela Lee
  • Publication number: 20120240981
    Abstract: The invention relates to a photovoltaic (PV) module including a weatherable layer, wherein the weatherable layer comprises thermoplastic vulcanizate (TPV). The weatherable layer endows the PV module with excellent temperature resistance, weatherability, and chemical resistance.
    Type: Application
    Filed: March 24, 2011
    Publication date: September 27, 2012
    Applicant: DU PONT APOLLO LTD.
    Inventors: Stephen Yau Sang Cheng, Ka-Lok Leung
  • Publication number: 20120234376
    Abstract: The invention relates to a photovoltaic (PV) module including a weatherable layer, wherein the weatherable layer comprises an acrylic polymer. The weatherable layer endows the PV module with excellent temperature resistance, weatherability, and chemical resistance.
    Type: Application
    Filed: March 18, 2011
    Publication date: September 20, 2012
    Applicant: DU PONT APOLLO LTD.
    Inventors: Stephen Yau Sang CHENG, Ka-Lok LEUNG
  • Publication number: 20120090778
    Abstract: Disclosed herein is a backsheet for a photovoltaic module. The backsheet includes a dielectric layer, an adhesive layer disposed on the dielectric layer, a barrier layer disposed on the adhesive layer and bonded to the dielectric layer via the adhesive layer, and a weather resistant layer directly disposed on and bonded to the barrier layer by a powder coating method.
    Type: Application
    Filed: October 18, 2010
    Publication date: April 19, 2012
    Applicant: Du Pont Apollo Limited
    Inventors: Stephen Yau-Sang CHENG, Ka-Lok LEUNG
  • Patent number: 8026126
    Abstract: The invention provides an apparatus and method for thin die detachment involving the use of a collet for holding and detaching a die mounted on an adhesive surface of an adhesive film. An ejector device comprising a plurality of ejector pins is employed to partially delaminate said die from the adhesive surface for detachment by the collet. Each ejector pin is operative to contact and raise a second surface of the film opposite the adhesive surface at a position substantially at a corner of the die to be detached within a predetermined distance from the edges of said die.
    Type: Grant
    Filed: July 28, 2003
    Date of Patent: September 27, 2011
    Assignee: ASM Assembly Automation Ltd
    Inventors: Yiu Ming Cheung, Chi Ming Chong, Tat Wing Lee, Ka Lok Leung
  • Publication number: 20100155020
    Abstract: Systems and processes for providing a blended cooling air stream to a cooling zone cooler in a continuous catalyst regeneration system are provided that include removing a first effluent stream from a regeneration tower, providing the first effluent stream to a regeneration cooler; providing a first air stream to the regeneration cooler to form a heated first air stream, combining at least a portion of the heated first air stream with a second air stream to form a blended cooling air stream, and providing the blended cooling air stream to a cooling zone cooler.
    Type: Application
    Filed: December 23, 2008
    Publication date: June 24, 2010
    Inventors: Ka Lok, Christopher Naunheimer, Matthew Zuraski
  • Patent number: 7395751
    Abstract: An ice beverage-making apparatus includes a housing, an electric motor located within the housing, a torque transmission supported by the housing and receiving input from the electric motor and providing a first output shaft and a second-speed output shaft that rotates at a different speed than the first output shaft. The apparatus further includes an ice crushing module supported by the housing and receiving torque from the first output shaft, and a blending module receiving torque from the second output shaft.
    Type: Grant
    Filed: February 27, 2004
    Date of Patent: July 8, 2008
    Assignee: Main Power Electrical Factory Ltd.
    Inventor: Ka Lok Joe Liu
  • Patent number: 7361908
    Abstract: A method of estimating a radiation dose deposited on a radiochromic film based on absorption measurements at least at two wavelengths as well as devices implementing the estimation method. The method includes the following steps: (a) measuring absorption values at a first wavelength and a second wavelength; (b) converting the absorption values at the two wavelengths to dose values at the corresponding wavelengths by using a calibration procedure; (c) obtaining a weighting factor curve (weighting factor vs. dose) at each wavelengths; and (d) obtaining an estimate of irradiation dose at the location on the radiochromic film by minimizing the objective function which takes the weighting factors and the dose values at both wavelengths as input.
    Type: Grant
    Filed: April 13, 2006
    Date of Patent: April 22, 2008
    Assignee: The Hong Kong Polytechnic University
    Inventors: Karl Ka Lok Fung, Kit Yee Lee
  • Publication number: 20070173555
    Abstract: Artificial flowers made of polyether polyurethane and the method of their production. The ingredients of the polyether polyurethane foam product are: Group A: 10%˜99.5% polyether, 0.5%˜30% cross-linking agent, 0%˜15% stabilizer, 0.1%˜20% foaming agent, 0%˜10% color paste; Group B: isocyanate in an amount equal to 15%˜90% of the total weight of Group A ingredients. By mixing group A and group B ingredients and pouring the mixture into the cavity of a flower mold, an artificial flower of polyether polyurethane foam is produced, which has a natural look and feel resemble the real flower, resists to damages caused by squeezes and collisions, and is stable at the high temperatures of the summer time.
    Type: Application
    Filed: December 21, 2006
    Publication date: July 26, 2007
    Applicant: SHEBO CHINA LIMITED
    Inventor: Ka-Lok Loo
  • Patent number: 7163663
    Abstract: A plasma reactor (11) of the silent discharge or dielectric barrier type for treatment of a gaseous medium is provided with a layer of material (34) positioned to present a surface extending along at least part of the length of the gas flow path. Particulates or selected species are entrapped on the surface. A preferred electrode arrangement provides surface discharge in the plasma at the surface of the layer of material.
    Type: Grant
    Filed: March 15, 2002
    Date of Patent: January 16, 2007
    Assignee: Accentus PLC
    Inventors: John Sydney Carlow, Ka Lok Ng, James Timothy Shawcross
  • Publication number: 20040115904
    Abstract: The invention provides an apparatus and method for thin die detachment involving the use of a collet for holding and detaching a die mounted on an adhesive surface of an adhesive film. An ejector device comprising a plurality of ejector pins is employed to partially delaminate said die from the adhesive surface for detachment by the collet. Each ejector pin is operative to contact and raise a second surface of the film opposite the adhesive surface at a position substantially at a corner of the die to be detached within a predetermined distance from the edges of said die.
    Type: Application
    Filed: July 28, 2003
    Publication date: June 17, 2004
    Inventors: Yiu Ming Cheung, Chi Ming Chong, Tat Wing Lee, Ka Lok Leung
  • Publication number: 20040094401
    Abstract: A plasma reactor (11) of the silent discharge or dielectric barrier type for treatment of a gaseous medium is provided with a layer of material (34) positioned to present a surface extending along at least part of the length of the gas flow path. Particulates or selected species are entrapped on the surface. A preferred electrode arrangement provides surface discharge in the plasma at the surface of the layer of material.
    Type: Application
    Filed: September 22, 2003
    Publication date: May 20, 2004
    Inventors: John Sydney Carlow, Ka Lok Ng, James Timothy Shawcross
  • Patent number: 6372188
    Abstract: A reactor for the processing of gaseous media, including two planar beds of active material separated by a gap. A gaseous medium to be processed is fed inwardly around the periphery of the reactor beds into the gap between the reactor beds and collected from their outer surfaces.
    Type: Grant
    Filed: August 21, 2000
    Date of Patent: April 16, 2002
    Assignee: Accentus plc
    Inventors: Peter James Andrews, Ka Lok Ng
  • Patent number: 5975076
    Abstract: A dry powder inhaler is provided which comprises a reservoir of medicament powder, a dispensing chamber for receiving a charge of powder to be dispensed having a floor upon which the powder charge lies prior to inhalation, an inlet passage having at its outlet end a nozzle protruding into the dispensing chamber directed toward the floor thereof and an inhalation passage exiting from the chamber through which the powder may be inhaled entrained in air drawn into the inhaler through the air inlet passage. The inhalation passage has an inlet at the dispensing chamber and an outlet through which the powder may be inhaled and comprises a first upstream portion having a roof and a floor both of which rise progressively with respect to a straight line drawn form the center of the inlet to the center of the outlet ad a second portion having a roof and a floor both of which fall progressively with respect to the line in the downstream direction.
    Type: Grant
    Filed: October 10, 1996
    Date of Patent: November 2, 1999
    Assignee: King's College London
    Inventors: Michael Yianneskis, Gary Peter Martin, Christopher Marriott, Kwok-On Suen, Ka-lok Carroll Lee, David Ganderton, Mukunda Timsina
  • Patent number: D338188
    Type: Grant
    Filed: July 26, 1991
    Date of Patent: August 10, 1993
    Assignee: Comewell Industries Limited
    Inventors: Simon G. Lee, Ka-Lok Leung