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).
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Patent number: 8959810Abstract: 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: GrantFiled: November 19, 2014Date of Patent: February 24, 2015Assignee: Polygroup Macau Limited (BVI)Inventors: Chi Yin Alan Leung, Ricky Tong, Chi Kin Samuel Kwok, Chang-Jun He
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Patent number: 8955644Abstract: 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: GrantFiled: April 29, 2013Date of Patent: February 17, 2015Assignee: Polygroup Macau Limited (BVI)Inventor: Chi Yin Alan Leung
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Patent number: 8899251Abstract: A canopy system comprising a shading element, a support element, and an attachment element member. The canopy system is adapted to provide shade over at least a portion of an above-ground container. The canopy system is configured to maintain its structure during slightly windy and mild weather conditions.Type: GrantFiled: December 5, 2011Date of Patent: December 2, 2014Assignee: Polygroup Macau Limited (BVI)Inventors: Chi Yin Alan Leung, Ricky Tong
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Patent number: 8893099Abstract: A system of one or more processors, method, and computer readable storage medium, by which a source program having at least one inner scope is processed by identifying variable names in the source program that are upward referencing and storing the upward referencing variable names with an identifier for the associated scope. A candidate shadow variable in a current scope of the source program is determined from variable names that are not among the identified upward referencing variable names. The determined candidate shadow variable is renamed to a variable name that is in an outer scope relative to the current scope. The source program is stored with the renamed variable. The stored source program can be compressed to a size smaller than the original source program in order to require less bandwidth during transmission over a network.Type: GrantFiled: November 30, 2011Date of Patent: November 18, 2014Assignee: Google Inc.Inventor: Alan Leung
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Patent number: 8863416Abstract: 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: GrantFiled: October 24, 2012Date of Patent: October 21, 2014Assignee: Polygroup Macau Limited (BVI)Inventors: Chi Yin Alan Leung, Ricky Tong, Chi Kin Samuel Kwok, Chang-Jun He
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Publication number: 20140291472Abstract: 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: ApplicationFiled: March 12, 2014Publication date: October 2, 2014Applicant: Polygroup Macau Limited (BVI)Inventor: Chi Yin Alan Leung
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Publication number: 20140285927Abstract: 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: ApplicationFiled: February 21, 2014Publication date: September 25, 2014Applicant: Polygroup Macau Limited (BVI)Inventor: Chi Yin Alan Leung
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Patent number: 8753135Abstract: A lamp system used in a light string system comprises a light assembly and a socket assembly. The light assembly comprises a light source, a base in communication with the light source, and a bypass activating system. The socket assembly comprises a socket adapted to receive the light assembly and a bypass mechanism having a first position and a second position. The bypass mechanism is in the first position when the light assembly is not seated in the socket assembly. When the bypass mechanism in the first position, current flows across the bypass mechanism. When the light assembly is inserted into the socket assembly, the bypass activating system of the light assembly moves the bypass mechanism into the second position, and current flows through the light source instead of the bypass mechanism.Type: GrantFiled: March 13, 2013Date of Patent: June 17, 2014Assignee: Polygroup Macau Limited (BVI)Inventors: Chung-Wai (Paul) Cheng, Yong Fu, Chi-Yin (Alan) Leung, Hou-You Han
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Publication number: 20140087094Abstract: 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: ApplicationFiled: November 26, 2013Publication date: March 27, 2014Applicant: POLYGROUP MACAU LIMITED (BVI)Inventors: Chi Yin Alan Leung, Ricky Tong, Chi Kin Samuel Kwok, Chang-Jun He
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Patent number: 8640275Abstract: Devices combining swimming pool skimmers, pumps, and removable, disposable filters into integral, sidewall-mounted systems for above-ground pools and other above-ground liquid containment enclosures, and methods for the use of such systems to remove both larger floating debris and smaller particulate matter to maintain water clarity and hygienic safety within such pools or like liquid containment enclosures are disclosed herein. Specifically, a ring-type above-ground pool comprising a base, a sidewall, and at least a portion of a cleaning system solely supported by the sidewall and mounted at a non-vertical angle such that it is substantially parallel to the sidewall.Type: GrantFiled: September 3, 2010Date of Patent: February 4, 2014Assignee: Polygroup Macau Limited (BVI)Inventors: Gary Lee Lawson, Chi Yin Alan Leung, Chung Wai (Paul) Cheng
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Publication number: 20130345646Abstract: 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: ApplicationFiled: March 14, 2013Publication date: December 26, 2013Applicant: MEDTRONIC XOMED, INCInventors: W. Jeff Bertrand, Lori Speckman, Manfred Karl Luedi, Chun Man Alan Leung, Lawrence Hampton, Deep Shah
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Publication number: 20130233647Abstract: 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: ApplicationFiled: April 29, 2013Publication date: September 12, 2013Applicant: Polygroup Macau Limited (BVI)Inventor: Chi Yin Alan Leung
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Patent number: 8469538Abstract: The bladder assembly includes a bladder, which includes a seal or passage for dispensing and removing media to inflate the bladder. The bladder includes a housing for holding media and for storing and protecting the light system, and a diffusing mechanism for diffusing and distributing light emitted from the light system throughout the bladder. The diffusing mechanism can extend within the bladder, and the light system can illuminate light in and through the diffusing mechanism. The covering can cover the inflated bladder to provide additional shape and structure to the decorative system.Type: GrantFiled: January 21, 2011Date of Patent: June 25, 2013Assignee: Polygroup Macau Limited (BVI)Inventor: Chi Yin Alan Leung
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Patent number: 8430205Abstract: 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: GrantFiled: January 6, 2010Date of Patent: April 30, 2013Assignee: Polygroup Macau Limited (BVI)Inventor: Chi Yin Alan Leung
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Publication number: 20130092205Abstract: A canopy system comprising a shading element, a support element, and an attachment element member. The canopy system is adapted to provide shade over at least a portion of an above-ground container. The canopy system is configured to maintain its structure during slightly windy and mild weather conditions.Type: ApplicationFiled: December 5, 2011Publication date: April 18, 2013Applicant: POLTGROUP MACAU LIMITED (BV)Inventors: Chi Yin Alan Leung, Ricky Tong
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Patent number: 8419455Abstract: A lamp system used in a light string system comprises a light assembly and a socket assembly. The light assembly comprises a light source, a base in communication with the light source, and a bypass activating system. The socket assembly comprises a socket adapted to receive the light assembly and a bypass mechanism having a first position and a second position. The bypass mechanism is in the first position when the light assembly is not seated in the socket assembly. When the bypass mechanism in the first position, current flows across the bypass mechanism. When the light assembly is inserted into the socket assembly, the bypass activating system of the light assembly moves the bypass mechanism into the second position, and current flows through the light source instead of the bypass mechanism.Type: GrantFiled: July 27, 2012Date of Patent: April 16, 2013Assignee: Polygroup Macau Limited (BVI)Inventors: Chung Wai (Paul) Cheng, Yong Fu, Chi Yin (Alan) Leung, Hou-You Han
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Publication number: 20120286642Abstract: A lamp system used in a light string system comprises a light assembly and a socket assembly. The light assembly comprises a light source, a base in communication with the light source, and a bypass activating system. The socket assembly comprises a socket adapted to receive the light assembly and a bypass mechanism having a first position and a second position. The bypass mechanism is in the first position when the light assembly is not seated in the socket assembly. When the bypass mechanism in the first position, current flows across the bypass mechanism. When the light assembly is inserted into the socket assembly, the bypass activating system of the light assembly moves the bypass mechanism into the second position, and current flows through the light source instead of the bypass mechanism.Type: ApplicationFiled: July 27, 2012Publication date: November 15, 2012Applicant: POLYGROUP MACAU LIMITED (BVI)Inventors: Chung-Wai (Paul) CHENG, Yong Fu, Chi Yin Alan Leung, Hou-You Han
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Patent number: 8298168Abstract: 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. A reading circuit assembly includes an antenna coil, a sensing coil and a member moveable with respect to the sensing coil, the member configured to alter a resonant frequency of the reading circuit assembly as a function of a position of the member with respect to the sensing coil.Type: GrantFiled: January 27, 2011Date of Patent: October 30, 2012Assignee: Medtronic Xomed, Inc.Inventors: William Jeffrey Bertrand, Robert K. Vaccaro, Chun Man Alan Leung, Michael Ayoub, Pierre Jaquier, Laetitia Mayor, Thomas Junker, Guillaume Schmit
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Patent number: 8235737Abstract: A lamp system used in a light string system comprises a light assembly and a socket assembly. The light assembly comprises a light source, a base in communication with the light source, and a bypass activating system. The socket assembly comprises a socket adapted to receive the light assembly and a bypass mechanism having a first position and a second position. The bypass mechanism is in the first position when the light assembly is not seated in the socket assembly. When the bypass mechanism in the first position, current flows across the bypass mechanism. When the light assembly is inserted into the socket assembly, the bypass activating system of the light assembly moves the bypass mechanism into the second position, and current flows through the light source instead of the bypass mechanism.Type: GrantFiled: December 3, 2010Date of Patent: August 7, 2012Assignee: Polygroup Macau Limited (BVI)Inventors: Chung Wai (Paul) Cheng, Yong Fu, Chi Yin (Alan) Leung, Hou-You Han
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Publication number: 20120197177Abstract: 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: ApplicationFiled: January 27, 2011Publication date: August 2, 2012Applicant: MEDTRONIC XOMED, INC.Inventors: William Jeffrey Bertrand, Robert K. Vaccaro, Chun Man Alan Leung, Michael Ayoub, Pierre Jaquier, Laetitia Mayor, Thomas Junker, Guillaume Schmit