Patents by Inventor Sik-Leung Chan

Sik-Leung 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).

  • Patent number: 8551228
    Abstract: Devices for removing particles for a gas utilizing electrostatic precipitation having collector modules with fewer electrical connections, which facilitate cleaning, and/or eliminate the need for high voltage connections between a removable collector module and a collector module support. Driver electrode modules provide electrical connection between an insulated driver electrode and a source of electrical potential or between insulated driver electrodes and at least one other conductor through a hole in or on some edge on the driver electrodes. A biasing force is provided and a conductive element serves as a conductor between the driver electrode(s) and the other conductors. A plurality of insulated driver electrodes, e.g. plates, are formed with a single, conductive plate or from a plurality of electrically joined conductive plates which are coated with insulation and then bent.
    Type: Grant
    Filed: December 12, 2012
    Date of Patent: October 8, 2013
    Inventor: Sik Leung Chan
  • Publication number: 20130098247
    Abstract: Devices for removing particles for a gas utilizing electrostatic precipitation having collector modules with fewer electrical connections, which facilitate cleaning, and/or eliminate the need for high voltage connections between a removable collector module and a collector module support. Driver electrode modules provide electrical connection between an insulated driver electrode and a source of electrical potential or between insulated driver electrodes and at least one other conductor through a hole in or on some edge on the driver electrodes. A biasing force is provided and a conductive element serves as a conductor between the driver electrode(s) and the other conductors. A plurality of insulated driver electrodes, e.g. plates, are formed with a single, conductive plate or from a plurality of electrically joined conductive plates which are coated with insulation and then bent.
    Type: Application
    Filed: December 12, 2012
    Publication date: April 25, 2013
    Inventor: Sik Leung Chan
  • Patent number: 8357233
    Abstract: Devices for removing particles for a gas utilizing electrostatic precipitation having collector modules with fewer electrical connections, which facilitate cleaning, and/or eliminate the need for high voltage connections between a removable collector module and a collector module support. Driver electrode modules provide electrical connection between an insulated driver electrode and a source of electrical potential or between insulated driver electrodes and at least one other conductor through a hole in or on some edge on the driver electrodes. A biasing force is provided and a conductive element serves as a conductor between the driver electrode(s) and the other conductors. A plurality of insulated driver electrodes, e.g. plates, are formed with a single, conductive plate or from a plurality of electrically joined conductive plates which are coated with insulation and then bent.
    Type: Grant
    Filed: February 5, 2010
    Date of Patent: January 22, 2013
    Inventor: Sik Leung Chan
  • Publication number: 20110248138
    Abstract: A device positioning support for selectively positioning a device in one of a plurality of positions comprising a base, a pair of links which are each connected to the base and to a device, a manually operable self-locking release comprising a biasing member which normally biases a first constraint connected to one of the links into engagement with a second constraint connected to the other link in order to prevent relative movement of the links. The release is manually operable to relieve the biasing force and thereby permit relative movement between the first link relative to the second link in order to reposition the device.
    Type: Application
    Filed: April 9, 2010
    Publication date: October 13, 2011
    Inventor: Sik Leung Chan
  • Publication number: 20100236411
    Abstract: Devices for removing particles for a gas utilizing electrostatic precipitation comprising collector modules with fewer electrical connections, which facilitate cleaning, and/or eliminate the need for high voltage connections between a removable collector module and a collector module support. Driver electrode modules provide electrical connection between an insulated driver electrode and a source of electrical potential or between insulated driver electrodes and at least one other conductor through a hole in or on some edge on the driver electrodes. A biasing force is provided and a conductive element serves as a conductor between the driver electrode(s) and the other conductors. A plurality of insulated driver electrodes, e.g. plates, are formed with a single, conductive plate or from a plurality of electrically joined conductive plates which are coated with insulation and then bent.
    Type: Application
    Filed: February 5, 2010
    Publication date: September 23, 2010
    Inventor: Sik Leung Chan
  • Patent number: 7775140
    Abstract: A cork extractor significantly reduces the countervailing forces that must be applied to a bottle during extraction of a cork by providing a handle having a rotational axis substantially perpendicular to the vertical, longitudinal axis of a cork as it is removed from a bottle. A handle rotates about an axis and comprises gripping portions on opposite sides of the rotational axis. The corkscrew is prevented from spiraling out of the cork during the application of upwardly directed forces independently of the screw carrier.
    Type: Grant
    Filed: March 28, 2008
    Date of Patent: August 17, 2010
    Assignee: C.C. & L Company Limited
    Inventor: Sik Leung Chan
  • Publication number: 20100037776
    Abstract: Air or gas cleaners enhance the uniformity of the current density between an emitter and one or more receptor electrodes by positioning one or more insulators or effective resistors between the emitter and the receptor electrode. Insulators and/or effective resistors are used to shield select portions, e.g. the edges of plate-type receptor electrodes, from ionization current flowing between an emitter and unshielded portions. This allows more compact structures without ionization current concentrations at the shielded regions, and results in lower ozone generation for a given particle collection efficiency.
    Type: Application
    Filed: August 14, 2008
    Publication date: February 18, 2010
    Inventor: Sik Leung Chan
  • Publication number: 20090241737
    Abstract: A cork extractor significantly reduces the countervailing forces that must be applied to a bottle during extraction of a cork by providing a handle having a rotational axis substantially perpendicular to the vertical, longitudinal axis of a cork as it is removed from a bottle. A handle rotates about an axis and comprises gripping portions on opposite sides of the rotational axis. The corkscrew is prevented from spiraling out of the cork during the application of upwardly directed forces independently of the screw carrier.
    Type: Application
    Filed: March 28, 2008
    Publication date: October 1, 2009
    Inventor: Sik Leung Chan
  • Patent number: 7556384
    Abstract: A trifold display device comprising panel opening mechanism(s) which open the device, in a damped motion, from a closed position wherein display surfaces are concealed from view to an open configuration wherein three display surfaces are exposed. The panel operating mechanisms exert forces on two panels, thereby urging the panels toward an open position. Upon actuation of a release latch, the opening mechanisms move a support panel around to the back of the mirror, thereby raising the device into a tilted position (if the device is resting on a surface). Preferably simultaneously, the two movable display panels are also moved to an open configuration wherein they are exposed.
    Type: Grant
    Filed: November 4, 2005
    Date of Patent: July 7, 2009
    Assignee: C.C. & L Company Limited
    Inventor: Sik Leung Chan
  • Publication number: 20090026210
    Abstract: Portable storage cases comprising a base and a lid which is automatically movable by a damped, spring-biased lid mechanism. Upon actuation of a release, the lid automatically moves from a closed position to an open position. A display support is pivotally movable with respect to the base and is moved during at least part of the time that the lid is moving from the closed to the open position. The display support is adapted to releasably support at least one item and, if desired, supports a plurality of items. In preferred embodiments, movement of the display support only commences after the lid has moved for some predetermined time, distance or angle.
    Type: Application
    Filed: January 14, 2008
    Publication date: January 29, 2009
    Inventors: Sik Leung Chan, Kunio Okamoto
  • Patent number: 7452150
    Abstract: Items such as writing implements comprise a housing which moves from a first configuration wherein a writing portion is at least partially disposed within a housing to a second configuration wherein more of the writing portion is disposed outside of the housing. In one version, upon the selective actuation of a release, at least two housing portions initially move away from each other while the writing portion moves from the first configuration toward the second configuration, the housing portions then move back toward each other, all in a damped motion. In the second configuration, at least a portion of the writing portion is further away from the hinge-type connection than in the first configuration.
    Type: Grant
    Filed: August 22, 2005
    Date of Patent: November 18, 2008
    Assignee: C.C. & L Company Limited
    Inventor: Sik Leung Chan
  • Patent number: D593784
    Type: Grant
    Filed: December 4, 2008
    Date of Patent: June 9, 2009
    Assignee: C.C. & L Company Limited
    Inventor: Sik Leung Chan
  • Patent number: D594509
    Type: Grant
    Filed: December 11, 2008
    Date of Patent: June 16, 2009
    Assignee: C.C. & L Company Limited
    Inventor: Sik Leung Chan
  • Patent number: D598258
    Type: Grant
    Filed: February 4, 2009
    Date of Patent: August 18, 2009
    Assignee: C.C. & L Company Limited
    Inventor: Sik Leung Chan
  • Patent number: D601687
    Type: Grant
    Filed: March 19, 2009
    Date of Patent: October 6, 2009
    Assignee: C.C. & L Company Limited
    Inventor: Sik Leung Chan
  • Patent number: D605414
    Type: Grant
    Filed: January 13, 2009
    Date of Patent: December 8, 2009
    Assignee: C.C. & L Company Limited
    Inventors: Sik Leung Chan, Kunio Okamoto
  • Patent number: D612725
    Type: Grant
    Filed: December 8, 2008
    Date of Patent: March 30, 2010
    Assignee: C.C. & L Company Limited
    Inventor: Sik Leung Chan
  • Patent number: D616716
    Type: Grant
    Filed: March 19, 2009
    Date of Patent: June 1, 2010
    Assignee: C.C. & L Company Limited
    Inventor: Sik Leung Chan
  • Patent number: D618328
    Type: Grant
    Filed: February 5, 2010
    Date of Patent: June 22, 2010
    Assignee: C.C. & L Company Limited
    Inventor: Sik Leung Chan
  • Patent number: D637333
    Type: Grant
    Filed: September 28, 2010
    Date of Patent: May 3, 2011
    Assignee: C.C. L & Company Limited
    Inventor: Sik Leung Chan