Patents by Inventor Kin Chan

Kin Chan 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: 20050092570
    Abstract: An electrorheological clutch comprises drive and driven members that selectively engage by the application of a voltage to an electroheological fluid (ER) provided between the driven and driven members. The drive and driven members are formed with axially-oriented surfaces that define between then axially-oriented spaces for the ER fluid so as to minimise problems with settlement of the ER particles.
    Type: Application
    Filed: November 3, 2003
    Publication date: May 5, 2005
    Applicant: China Patent Investment Limited
    Inventors: Weijia Wen, Ping Sheng, Kin Chan, Chau Nam
  • Publication number: 20040181962
    Abstract: A hair styling attachment including a main housing and at least a pair of hair treating members, the hair treating member includes at least a thermally conductive hair treating surface, the pair of hair treating members being adjacently disposed with the corresponding hair treating surfaces on the pair of adjacent hair treating members generally in compressive contact, the corresponding hair treating surfaces on the pair of adjacent hair treating members being relatively displaceable to form a gap for receiving the hair to be treated, the main housing includes an air inlet and the hair treating surface being communicable with the air inlet.
    Type: Application
    Filed: January 30, 2004
    Publication date: September 23, 2004
    Inventor: Wing Kin Chan
  • Patent number: 6761379
    Abstract: A pipe fitting includes a hollow body and at least one open end for connection to a pipe fitting, the end including internal screw threads. The end includes an integral extension collar which has an inner diameter larger than the screw threads for surrounding unused trailing screw threads of a pipe joined to the fitting and forming an annular gap for holding a sealing compound. The collar has a wall of a comparable thickness to the and an outer diameter larger than the body of the fitting.
    Type: Grant
    Filed: October 22, 2001
    Date of Patent: July 13, 2004
    Assignee: The Hong Kong and China Gas Company Limited
    Inventor: Alfred Wing Kin Chan
  • Patent number: 6740756
    Abstract: The present invention provides complexing agents of Formula I which contain novel photosensitizers and produce long-lived fluorescence for use in bioaffinity assays, especially HTRF (homogeneous time-resolved fluorescence) assays.
    Type: Grant
    Filed: June 20, 2001
    Date of Patent: May 25, 2004
    Assignee: SmithKline Beecham Corporation
    Inventors: George Wai-Kin Chan, Robert P. Hertzberg
  • Publication number: 20040045569
    Abstract: A hair care device including hair combing means, said hair combing means including a plurality of combing teeth and means for adjusting effective teeth spacing between adjacent combing teeth, characterised in that at least some of said combing teeth being thermally conductive so that heat can be conducted from said combing means to said hair via said thermally conductive combing teeth when said hair is being engaged under tension by said combing teeth.
    Type: Application
    Filed: August 1, 2003
    Publication date: March 11, 2004
    Inventor: Wing Kin Chan
  • Patent number: 6660070
    Abstract: An air purifier includes a cabinet, an electrically driven fan, a replaceable filter element, and an air quality sensor. A display provides a visual indication of the air quality condition. A microprocessor is programmed to control the speed of the fan automatically according to the air quality condition. The microprocessor also computes when the filter element must be changed by totalling the time of operation and its speed (which equals air quality) so that for example the filter element will be changed more often (used for less aggregate time) when the air purifier is operated in a poor quality environment.
    Type: Grant
    Filed: November 30, 2001
    Date of Patent: December 9, 2003
    Assignee: Simatelex Manufactory Co., Ltd.
    Inventors: Chi Cheung Chung, Stephen Wai-Kin Chan, Wing-Chung Li
  • Patent number: 6658315
    Abstract: A system and method for non-synchronously projecting light in an imaging system is provided. A pixel panel may be selectively controlled to direct light onto or away from a subject. A light source, such as a laser diode, projects light pulses at the pixel panel. The pulses are not synchronized with the pixel panel, so the light may strike the pixel panel at any time when the pixel panel is operable to direct light towards the subject. The pulses may be constant or variable in energy or duration, depending on the desired results.
    Type: Grant
    Filed: October 31, 2001
    Date of Patent: December 2, 2003
    Assignee: Ball Semiconductor, Inc.
    Inventor: Kin Chan
  • Publication number: 20030025981
    Abstract: An apparatus and method for adjustably reflecting light is provided. The apparatus includes a base and, positioned above the base, a member having an upper surface and a lower surface. A reflective coating is applied to at least a portion of the upper surface. The system also includes a capacitive plate positioned between the member and the base. The capacitive plate is operable to deflect the member, which alters the orientation of the member relative to the base. A second member, which may be deformable, may be attached to the first member so that deformation of the second member alters the orientation of the first member relative to the base.
    Type: Application
    Filed: July 31, 2001
    Publication date: February 6, 2003
    Applicant: Ball Semiconductor, Inc.
    Inventors: Akira Ishikawa, Takashi Kanatake, Wenhui Mei, Wade P. Farrow, Chad Mueller, Phillip Ahrens, Zhiqiang Feng, Kin Chan
  • Publication number: 20020078830
    Abstract: An air purifier comprises a cabinet an electrically driven fan a replaceable filter element and an air quality sensor A display provides a visual indication of the air quality condition. A microprocessor is programmed to control the speed of the fan automatically according to the air quality condition. The microprocessor also computes when the filter element must be changed by totalling the time of operation and its speed (which equals air quality) so that for example the filter element will be changed more often (used for less aggregate time) when the air purifier is operated in a poor quality environment.
    Type: Application
    Filed: November 30, 2001
    Publication date: June 27, 2002
    Inventors: Chi-Cheung Chung, Stephen Wai-Kin Chan, Wing-Chung Li
  • Patent number: 6382084
    Abstract: In an otherwise well-known electric pop-up toaster, an auxiliary power switch is provided and is arranged to be opened by a timer after each toasting cycle. This ensures, in contrast to the well-known toaster arrangements, that power is interrupted to heating elements even if a carriage supporting slices of toast fails to move up at the end of a toasting cycle.
    Type: Grant
    Filed: June 5, 2001
    Date of Patent: May 7, 2002
    Assignee: Simatelex Manufactory Co., Ltd.
    Inventors: Stephen Wai-Kin Chan, Wing Chung Li
  • Publication number: 20020002910
    Abstract: In an otherwise well-known electric pop-up toaster, an auxiliary power switch is provided and is arranged to be opened by a timer after each toasting cycle. This ensures, in contrast to the well-known toaster arrangements, that power is interrupted to heating elements even if a carriage supporting slices of toast fails to move up at the end of a toasting cycle.
    Type: Application
    Filed: June 5, 2001
    Publication date: January 10, 2002
    Inventors: Stephen Wai-Kin Chan, Wing Chung Li
  • Publication number: 20010013513
    Abstract: An improved hair curling iron 1 with a radiant heat source 21 which emits visible light during operation in which the instantaneous intensity of the emitted visible light is substantially commensurate with the instantaneous power across the said heating element. Advantage of this improved iron includes a fast response time because of the radiant nature of the heating source and an improved, and more convenient, visual indication of the instantaneous operation conditions of the iron resulting from the visible light emitted by heating element which is concurrently generated with the useful radiant heat.
    Type: Application
    Filed: February 2, 2000
    Publication date: August 16, 2001
    Inventor: Wing-Kin Chan
  • Patent number: 5878655
    Abstract: An automatic convection heating baking apparatus for bread or cake making with greatly improved automatic-baking quality is disclosed. Baking in this apparatus is achieved by two hot air streams each covering about half of the baking chamber space. Hot air circulation is produced by forming suction and blowing regions within the baking chamber by placing an electric fan within a single ventilation compartment. The machine is compact and low-cost since only a single electric fun is needed to cause circulation and to produce two hot air streams, premature hot air return to the ventilation compartment is prevented by using air-regulating means. Dual timer for mixing and baking is provided to improve cake fluffiness by controlling heating during ingredient mixing.
    Type: Grant
    Filed: November 18, 1996
    Date of Patent: March 9, 1999
    Assignee: China Packific Trade Ltd.
    Inventor: Wing Kin Chan
  • Patent number: 5857263
    Abstract: A hair drying apparatus comprising a conventional hand-held hair dryer, a hair dryer holder, a power cord retainer and a base, wherein the hair dryer holder has features for removably receiving the hair dryer, for making an elevation adjustment for the hair dryer and for maintaining the position of the barrel of a hair dryer, the power cord retainer comprises features for storing and releasing a length of flexible power cord, such that when the hair dryer is detached from the hair dryer holding means, the hair dryer is connected to the base by a length of flexible cord released from the power cord retainer. In addition, a detachable wall-mount member may be added to this apparatus, making it transformable between hand-held, table-top and wall-mount types of hair dryer which would offer a high degree of flexibility particularly to consumers.
    Type: Grant
    Filed: February 3, 1997
    Date of Patent: January 12, 1999
    Assignee: China Pacific Trade Ltd.
    Inventor: Wing-Kin Chan
  • Patent number: 5809268
    Abstract: A method and system are disclosed for tracking the allocation of resources within a processor having multiple execution units which support speculative execution of instructions. The processor includes a resource counter including a first counter and a second counter and a number of resources, wherein one or more of the resources are allocated to each of a number of instructions dispatched for execution to the execution units. In response to dispatching an instruction among the plurality of instructions to one of the execution units for execution, the first counter is incremented once for each of the resources allocated to the instruction, and if the instruction is a first instruction within a speculative execution path, the second counter is loaded with a value of the first counter prior to incrementing the first counter.
    Type: Grant
    Filed: June 29, 1995
    Date of Patent: September 15, 1998
    Assignee: International Business Machines Corporation
    Inventor: Kin Chan
  • Patent number: 5787368
    Abstract: An attitude or orientation control system for spacecraft that provides for yaw axis error reduction and momentum dumping using a simple calculation involving only the momentum wheel speeds as input and which outputs two axis (roll and yaw) torque commands. The system utilizes the spacecraft 1) momentum wheels that store spacecraft momentum, 2) processing means for the calculation of control torques, and 3) torque actuators, e.g., magnetic torquers, that can provide a torque axis anywhere in the spacecraft roll/yaw plane, and involves three fundamental steps, 1) the input of the momentum wheel speed mearsurements, and 2) the calculation of the required torques, using the wheel speed measurements, and and 3) the outputting of the required torques in a form appropriate for controlling the available actuators.
    Type: Grant
    Filed: November 3, 1995
    Date of Patent: July 28, 1998
    Assignee: Space Systems/Loral, Inc.
    Inventors: Donald W. Gamble, Xenophon H. Price, Kam Kin Chan
  • Patent number: 5765292
    Abstract: An attachment for a hair dryer is provided which is allowed to move relative to the barrel of the hair dryer in use. This is achieved by forming the attachment in two parts, a first part being a tool member for actually performing the desired function of the attachment, and the second part being a connecting member for fixing the attachment to the barrel of the hair dryer. Each of these parts is formed with a complementary part-spherical portion which are disposed one within the other to form a rotatable joint in the manner of a ball-and-socket joint. The attachment can take any of a number of conventional forms.
    Type: Grant
    Filed: February 28, 1997
    Date of Patent: June 16, 1998
    Assignee: China Pacific Trade Ltd.
    Inventor: Wing Kin Chan
  • Patent number: 5729841
    Abstract: A foot massager is provided in the form of a footbath (1) having first and second foot receiving portions (10). The base (2) of the footbath (1) is provided with a plurality of movable massaging elements (31, 50) to perform a massaging function on the feet. In one embodiment, the massaging elements are half-round projections (31) formed on a movable member (30) and which project through apertures (33) in an overlying fixed member (32), while in a second embodiment the massaging elements are rotating wheels (50) fixed on the movable member (30).
    Type: Grant
    Filed: February 12, 1997
    Date of Patent: March 24, 1998
    Assignee: China Pacific Trade Ltd.
    Inventor: Wing Kin Chan
  • Patent number: 5628123
    Abstract: An attachment for a hair dryer is disclosed of the type that requires a source of power, for example a massaging apparatus or an infra-red radiation heater. Rather than provide the attachment with its own power source, the attachment is formed with a terminal that allows it to be connected to the power supply circuit of a suitably adapted hair dryer.
    Type: Grant
    Filed: May 23, 1994
    Date of Patent: May 13, 1997
    Assignee: China Pacific Trade Ltd.
    Inventor: Wing-Kin Chan
  • Patent number: 5570405
    Abstract: An X-ray mask includes one or more X-ray transparent mask windows and at least one pattern-to-mask alignment mark etched into the mask substrate from the same side as the mask windows. The pattern-to-mask alignment marks can be etched at the same time as the mask windows and are detectable from the front surface of the mask substrate by an electron beam lithography system prior to creating the circuit pattern. The alignment marks are detected by the absence of backscattered electrons at the pattern-to-mask alignment marks.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: October 29, 1996
    Assignee: International Business Machines Corporation
    Inventors: Ken Tze-Kin Chan, William A. Enichen, John G. Hartley, Maris A. Sturans