Patents by Inventor Alan Leung

Alan Leung 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: 20170040755
    Abstract: A power transfer system to facilitate the transfer of electrical power between tree trunk sections of an artificial tree is disclosed. The power transfer system can advantageously enable neighboring tree trunk sections to be electrically connected without the need to rotationally align the tree trunk sections. Power distribution subsystems can be disposed within the trunk sections. The power distribution subsystems can comprise a male end, a female end, or both. The male ends can have prongs and the female ends can have voids. The prongs can be inserted into the voids to electrically connect the power distribution subsystems of neighboring tree trunk sections. In some embodiments, the prongs and voids are designed so that the prongs of one power distribution subsystem can engage the voids of another power distribution subsystem without the need to rotationally align the tree trunk sections.
    Type: Application
    Filed: October 19, 2016
    Publication date: February 9, 2017
    Inventors: Chi Yin Alan Leung, Ricky Tong, Chi Kin Samuel Kwok, Chang-Jun He
  • Publication number: 20160278559
    Abstract: A power transfer system to facilitate the transfer of electrical power between tree trunk sections of an artificial tree is disclosed. The power transfer system can advantageously enable neighboring tree trunk sections to be electrically connected without the need to rotationally align the tree trunk sections. Power distribution systems can be disposed within the trunk sections. The power distribution systems can comprise a male end, a female end, or both. The male ends can have prongs and the female ends can have voids. The prongs can be inserted into the voids to electrically connect the power distribution systems of neighboring tree trunk sections. In some embodiments, the prongs and voids are designed so that the prongs of one power distribution system can engage the voids of another power distribution system without the need to rotationally align the tree trunk sections.
    Type: Application
    Filed: March 25, 2016
    Publication date: September 29, 2016
    Inventors: Chi Yin Alan Leung, Chang Jun He, Chi Kin Samuel Kwok
  • Publication number: 20160213898
    Abstract: A magnetic article with a corrosion resistant barrier formed from a poly(tetrafluoro-p-xylene) conformal coating or from a parylene conformal coating having a melting point of at least about 430° C. and a moisture vapor transmission less than about 0.5 g-mm/m2/day at 90% RH and 37° C., the conformal coating being covered with a polysulfone thermoplastic overlayer.
    Type: Application
    Filed: January 22, 2015
    Publication date: July 28, 2016
    Inventors: Chun Man Alan Leung, William Jeffrey Bertrand, Drew Powell Amery, Lori C. Speckman, Thomas J. Sierocuk
  • Patent number: 9394744
    Abstract: A safety system for a swimming pool ladder is described for use in above-ground swimming pools. The safety system can comprise a frame covered with fabric or other enclosure permanently or temporarily affixed to the ladder and/or the sidewall of an above-ground swimming pool. The fabric can comprise a plurality of vent holes to prevent excessive side loads caused by water currents. The safety system can be detachably coupled to the ladder using a tab and slot configuration. The safety system can prevent objects from entering and becoming trapped between the pool sidewall and the pool ladder.
    Type: Grant
    Filed: December 30, 2014
    Date of Patent: July 19, 2016
    Assignee: POLYGROUP MACAU LIMITED (BVI)
    Inventor: Chi Yin Alan Leung
  • Publication number: 20160192798
    Abstract: A system for mounting decorative objects, such as Christmas trees, is disclosed. The system can include a base and a plurality of inserts. The base can comprise a plurality of feet that have a retracted position for ready storage and a deployed position for supporting a tree. The base can further comprise a locking mechanism for locking the feet in the retracted position, the deployed position, or both. The base can further comprise an adapter for receiving one or more inserts. The inserts can comprise a consistent outer diameter, for insertion into the adapter, and a variety of inner diameters for use with a variety of tree diameters. The insert can be installed on the trunk of a tree and then installed into the adapter on the base simplifying the tree erection process.
    Type: Application
    Filed: March 16, 2016
    Publication date: July 7, 2016
    Inventor: Chi Yin Alan Leung
  • Publication number: 20160184563
    Abstract: An implantable medical device is disclosed that includes a valve seat and a valve member movable with respect to the valve seat. An adjustment circuit assembly includes a resistive element that is coupled to the valve member and operable to position the valve member relative to the valve seat so as to alter the pressure setting in response to a current applied to the resistive element.
    Type: Application
    Filed: March 8, 2016
    Publication date: June 30, 2016
    Applicant: Medtronic Xomed, Inc.
    Inventors: William Jeffrey Bertrand, Robert K. Vaccaro, Chun Man Alan Leung, Michael Ayoub, Pierre Jaquier, Laetitia Mayor, Thomas Junker, Guillaume Schmit
  • Publication number: 20160166813
    Abstract: Implantable physiological shunt systems and related fluid flow control devices and accessories for use therewith. Devices, systems and methods relating to implantable medical fluid flow control devices, rotors and magnets with increased resistance to inadvertent setting changes. Devices, systems and methods relating implantable medical fluid flow control devices, rotors and magnets which provide improved magnetic coupling to fluid flow control device accessories such as adjustment tools.
    Type: Application
    Filed: February 23, 2016
    Publication date: June 16, 2016
    Applicant: MEDTRONIC XOMED, INC.
    Inventors: W. Jeff Bertrand, Lori Speckman, Manfred Karl Luedi, Chun Man Alan Leung, Lawrence Hampton, Deep Shah
  • Publication number: 20160123566
    Abstract: Employing capacitors as shunts in a decorative light string can prevent the circuit from being opened when a lamp burns out or becomes loose in the socket. But manually assembling such a light string is costly and the quality of the resulting string is not assured to be high. The present disclosure introduces a shunted light string, and a method of assembling that light string that is able to be automated to ensure a consistent quality level by reducing or eliminating human workmanship issues.
    Type: Application
    Filed: October 30, 2015
    Publication date: May 5, 2016
    Inventor: Chi Yin Alan Leung
  • Patent number: 9302082
    Abstract: An implantable medical device is disclosed that includes a valve seat and a valve member movable with respect to the valve seat. An adjustment circuit assembly includes a resistive element that is coupled to the valve member and operable to position the valve member relative to the valve seat so as to alter the pressure setting in response to a current applied to the resistive element.
    Type: Grant
    Filed: October 30, 2012
    Date of Patent: April 5, 2016
    Assignee: Medtronic Xomed, Inc.
    Inventors: William Jeffrey Bertrand, Robert K. Vaccaro, Chun Man Alan Leung, Michael Ayoub, Pierre Jaquier, Laetitia Mayor, Thomas Junker, Guillaume Schmit
  • Patent number: 9295826
    Abstract: Implantable physiological shunt systems and related fluid flow control devices and accessories for use therewith. Devices, systems and methods relating to implantable medical fluid flow control devices, rotors and magnets with increased resistance to inadvertent setting changes. Devices, systems and methods relating implantable medical fluid flow control devices, rotors and magnets which provide improved magnetic coupling to fluid flow control device accessories such as adjustment tools.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: March 29, 2016
    Assignee: Medtronic Xomed, Inc.
    Inventors: W. Jeff Bertrand, Lori Speckman, Manfred Karl Luedi, Chun Man Alan Leung, Lawrence Hampton, Deep Shah
  • Publication number: 20160037952
    Abstract: A system for mounting decorative objects, such as Christmas trees, is disclosed. The system can include a base and a plurality of inserts. The base can comprise a plurality of feet that have a retracted position for ready storage and a deployed position for supporting a tree. The base can further comprise a locking mechanism for locking the feet in the retracted position, the deployed position, or both. The base can further comprise an adapter for receiving one or more inserts. The inserts can comprise a consistent outer diameter, for insertion into the adapter, and a variety of inner diameters for use with a variety of tree diameters. The insert can be installed on the trunk of a tree and then installed into the adapter on the base simplifying the tree erection process.
    Type: Application
    Filed: October 19, 2015
    Publication date: February 11, 2016
    Inventor: Chi Yin Alan Leung
  • Patent number: 9161647
    Abstract: A system for mounting decorative objects, such as Christmas trees, is disclosed. The system can include a base and a plurality of inserts. The base can comprise a plurality of feet that have a retracted position for ready storage and a deployed position for supporting a tree. The base can further comprise a locking mechanism for locking the feet in the retracted position, the deployed position, or both. The base can further comprise an adapter for receiving one or more inserts. The inserts can comprise a consistent outer diameter, for insertion into the adapter, and a variety of inner diameters for use with a variety of tree diameters. The insert can be installed on the trunk of a tree and then installed into the adapter on the base simplifying the tree erection process.
    Type: Grant
    Filed: March 12, 2014
    Date of Patent: October 20, 2015
    Assignee: POLYGROUP MACAU LIMITED (BVI)
    Inventor: Chi Yin Alan Leung
  • Patent number: 9119495
    Abstract: A power transfer system to facilitate the transfer of electrical power between tree trunk sections of an artificial tree is disclosed. The power transfer system can advantageously enable neighboring tree trunk sections to be electrically connected without the need to rotationally align the tree trunk sections. Power distribution subsystems can be disposed within the trunk sections. The power distribution subsystems can comprise a male end, a female end, or both. The male ends can have prongs and the female ends can have voids. The prongs can be inserted into the voids to electrically connect the power distribution subsystems of neighboring tree trunk sections. In some embodiments, the prongs and voids are designed so that the prongs of one power distribution subsystem can engage the voids of another power distribution subsystem without the need to rotationally align the tree trunk sections.
    Type: Grant
    Filed: February 13, 2015
    Date of Patent: September 1, 2015
    Assignee: POLYGROUP MACAU LIMITED (BVI)
    Inventors: Chi Yin Alan Leung, Ricky Tong, Chi Kin Samuel Kwok, Chang-Jun He
  • Patent number: 9071053
    Abstract: An electrical safety system with an integrated timer is disclosed. The electrical safety system may have an input line connected to an output via one or more communication paths. The electrical safety system may also have a ground fault circuit interrupter module including a sensor coil for monitoring current passing from the input line to the electrical load and producing a current signal and a ground fault circuit interrupter circuit. Further, the electrical safety system may have one or more switches for opening or closing the one or more communication paths between the input line and the output, and a solenoid for operating the one or more switches. Additionally, the electrical safety system may have a timer module comprising a timer circuit configured to generate a timer signal and a selector switch in electrical communication with the timer circuit and a visual display.
    Type: Grant
    Filed: February 21, 2014
    Date of Patent: June 30, 2015
    Assignee: POLYGROUP MACAU LIMITED (BVI)
    Inventor: Chi Yin Alan Leung
  • Publication number: 20150167336
    Abstract: Disclosed is a container, such as an above-ground pool, with an improved porthole. The container can include a base, a side wall joined to the base, and at least one porthole. The porthole can comprise an aperture in the side wall and a generally transparent window sheet attached to the side wall and completely covering the aperture in the side wall. Such a design can be stronger and more durable than conventional portholes. The pool can also have portability and storability characteristics that are superior to those of conventional pools.
    Type: Application
    Filed: December 10, 2014
    Publication date: June 18, 2015
    Inventors: Chi Yin Alan Leung, Ricky Tong
  • Publication number: 20150157159
    Abstract: A power transfer system to facilitate the transfer of electrical power between tree trunk sections of an artificial tree is disclosed. The power transfer system can advantageously enable neighboring tree trunk sections to be electrically connected without the need to rotationally align the tree trunk sections. Power distribution subsystems can be disposed within the trunk sections. The power distribution subsystems can comprise a male end, a female end, or both. The male ends can have prongs and the female ends can have voids. The prongs can be inserted into the voids to electrically connect the power distribution subsystems of neighboring tree trunk sections. In some embodiments, the prongs and voids are designed so that the prongs of one power distribution subsystem can engage the voids of another power distribution subsystem without the need to rotationally align the tree trunk sections.
    Type: Application
    Filed: February 13, 2015
    Publication date: June 11, 2015
    Inventors: Chi Yin Alan Leung, Ricky Tong, Chi Kin Samuel Kwok, Chang-Jun He
  • Publication number: 20150107937
    Abstract: A safety system for a swimming pool ladder is described for use in above-ground swimming pools. The safety system can comprise a frame covered with fabric or other enclosure permanently or temporarily affixed to the ladder and/or the sidewall of an above-ground swimming pool. The fabric can comprise a plurality of vent holes to prevent excessive side loads caused by water currents. The safety system can be detachably coupled to the ladder using a tab and slot configuration. The safety system can prevent objects from entering and becoming trapped between the pool sidewall and the pool ladder.
    Type: Application
    Filed: December 30, 2014
    Publication date: April 23, 2015
    Inventor: Chi Yin Alan Leung
  • Publication number: 20150072087
    Abstract: A power transfer system to facilitate the transfer of electrical power between tree trunk sections of an artificial tree is disclosed. The power transfer system can advantageously enable neighboring tree trunk sections to be electrically connected without the need to rotationally align the tree trunk sections. Power distribution subsystems can be disposed within the trunk sections. The power distribution subsystems can comprise a male end, a female end, or both. The male ends can have prongs and the female ends can have voids. The prongs can be inserted into the voids to electrically connect the power distribution subsystems of neighboring tree trunk sections. In some embodiments, the prongs and voids are designed so that the prongs of one power distribution subsystem can engage the voids of another power distribution subsystem without the need to rotationally align the tree trunk sections.
    Type: Application
    Filed: November 19, 2014
    Publication date: March 12, 2015
    Inventors: Chin Yin Alan Leung, Ricky Tong, Chi Kin Samuel Kwok, Chang-Jun He
  • Patent number: 8959810
    Abstract: A power transfer system to facilitate the transfer of electrical power between tree trunk sections of an artificial tree is disclosed. The power transfer system can advantageously enable neighboring tree trunk sections to be electrically connected without the need to rotationally align the tree trunk sections. Power distribution subsystems can be disposed within the trunk sections. The power distribution subsystems can comprise a male end, a female end, or both. The male ends can have prongs and the female ends can have voids. The prongs can be inserted into the voids to electrically connect the power distribution subsystems of neighboring tree trunk sections. In some embodiments, the prongs and voids are designed so that the prongs of one power distribution subsystem can engage the voids of another power distribution subsystem without the need to rotationally align the tree trunk sections.
    Type: Grant
    Filed: November 19, 2014
    Date of Patent: February 24, 2015
    Assignee: Polygroup Macau Limited (BVI)
    Inventors: Chi Yin Alan Leung, Ricky Tong, Chi Kin Samuel Kwok, Chang-Jun He
  • Patent number: D744695
    Type: Grant
    Filed: October 17, 2014
    Date of Patent: December 1, 2015
    Assignee: POLYGROUP MACAU LIMITED (BVI)
    Inventors: Chi Kin Samuel Kwok, Chi Yin Alan Leung