Patents by Inventor Wai Leung

Wai 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: 20200255267
    Abstract: A safety system for a load carrying machine comprising: a controller, a location sensing arrangement in electronic communication with the processor, the location sensing arrangement configured to determine a location parameter of a load, a monitoring arrangement, the controller configured to receive the location parameter and determine a projected area of the load and control the monitoring arrangement to focus on the projected area to monitor the projected area.
    Type: Application
    Filed: December 1, 2015
    Publication date: August 13, 2020
    Inventors: Kwong Yeung Simon Wong, Chun Wai Lai, Chi Wai Leung
  • Patent number: 10697650
    Abstract: A self-adjusting balance valve controller controls water flow through a hydronic emitter in a heating and/or cooling temperature control system. The valve controller obtains a measured temperature differential between an inlet and an outlet of the hydronic emitter and determines a displacement of a coupling pin from the measured temperature differential. The valve controller then instructs a driving mechanism to move, through a coupling mechanism, the coupling pin to adjust a valve that results in a desired water flow through the hydronic emitter. The valve controller may maintain a stable temperature differential at a desired differential value, which may be obtained through a user interface or from a memory device. Moreover, the desired differential value may vary with different times of operation or temperature control situations.
    Type: Grant
    Filed: April 7, 2017
    Date of Patent: June 30, 2020
    Assignee: Computime Ltd.
    Inventors: Philip John Smith, Wai-Leung Ha, Dean Richard Jepson, Chung-Ming Cheng, Kwok Wa Kenny Kam, Hao-Hui Huang, Dick Kwai Chan, Hong Bin Liao
  • Publication number: 20200194127
    Abstract: Apparatuses and methods detect a health condition of a user that may be assessed from a thermal sensor signal and/or radar sensor signal. One or more resultant biometric vectors may be generated from biometric vectors based on the thermal and radar signals, where the resultant biometric vectors contain resultant information about one or more biometric features for a user. Hazard information about the user is obtained from the one or more resultant biometric vectors, where the hazard information is indicative of a health event for the user. Consequently, an appropriate action on behalf of the user may be performed to ameliorate the health condition. The one or more resultant biometric vectors may include additional biometric features and/or a time sequence of the resultant biometric vectors to enhance hazard prediction. Moreover, the apparatuses and methods may support the user in different settings including a home, business, or vehicle.
    Type: Application
    Filed: February 21, 2020
    Publication date: June 18, 2020
    Inventors: Hung Bun Choi, Chun Kit Chu, Wai-Leung Ha, Leung Yin Chan
  • Publication number: 20200170735
    Abstract: Embodiments relate to robotic arm assemblies. Embodiments include shoulder segment and upper arm segment having motor drive portion. Embodiments include shoulder coupling joint assembly connecting upper arm segment to shoulder segment. Shoulder coupling joint assembly includes distal shoulder joint subassembly connected to upper arm segment. Distal shoulder joint subassembly includes distal shoulder joint forming first axis. Distal shoulder joint subassembly includes shoulder planetary gear assembly having shoulder sun gear configured to rotate relative to first axis when motor drive portion is driven to rotate. Shoulder planetary gear assembly includes shoulder planetary gear carrier. When shoulder sun gear rotates, shoulder planetary gear carrier drives upper arm segment to rotate relative to first axis. Shoulder coupling joint assembly includes proximal shoulder joint subassembly connecting shoulder segment to distal shoulder joint subassembly.
    Type: Application
    Filed: February 10, 2020
    Publication date: June 4, 2020
    Inventors: Chung Kwong Yeung, Wai Leung William Cheng
  • Publication number: 20200123026
    Abstract: Disclosure is combined electrochemical impinging stream reaction apparatus with addition of ultrasonic of the invention and is used for illustrating the structure and the mutual position relationship of components of the apparatus. The combined electrochemical impinging stream reaction apparatus with addition of ultrasonic comprises a container frame to hold all the components, an electrocoagulation unit which is attached to the hopper type casing. The hopper type casing contains a conical filter arrangement. The combined electrochemical impinging stream reaction apparatus is configured for the removal of contaminants from water and wastewater.
    Type: Application
    Filed: October 19, 2018
    Publication date: April 23, 2020
    Inventor: Wai On Leung
  • Patent number: 10578318
    Abstract: A heating system includes a single thermostat that controls multiple thermostatic radiator valve (TRV) controllers that control heat transfer to radiators in a room. Each TRV controller has the capability to automatically detect the open/closing point and maximum heating point and to register corresponding pin positions of the valve. Each TRV controller is subsequently instructed by the thermostat to adjust the valve in relation to a determined percentage of the registered pin positions, thus accounting for the varying characteristics among the valves in the system. The TRV controller detects the maximum heating point by checking the rate of temperature rising and the open/closing point by sensing the temperature turning point through a temperature sensor situated appropriately in relation to the associated radiator.
    Type: Grant
    Filed: September 1, 2016
    Date of Patent: March 3, 2020
    Assignee: Computime Ltd.
    Inventors: Wai-Leung Ha, Philip John Smith, Hong Bin Liao
  • Publication number: 20200060778
    Abstract: Example embodiments relate to robotic arm assemblies. The robotic arm assembly includes forearm and upper arm segments. Upper arm segment includes distal motor. Robotic arm assembly includes elbow coupling joint assembly connecting distal end of upper arm segment to proximal end of forearm segment via a serial arrangement of proximal and distal elbow joints. Proximal elbow joint is located between upper arm segment and distal elbow joint. Distal elbow joint is located between proximal elbow joint and forearm segment. Proximal elbow joint forms proximal main elbow axis. Distal elbow joint forms distal main elbow axis. Elbow coupling joint assembly includes distal elbow joint subassembly connected to forearm segment. Elbow coupling joint assembly includes proximal elbow joint subassembly connecting upper arm segment to distal elbow joint subassembly. Proximal elbow joint subassembly is configured to be driven to rotate forearm segment relative to proximal main elbow axis.
    Type: Application
    Filed: November 5, 2019
    Publication date: February 27, 2020
    Inventors: Chung Kwong Yeung, Wai Leung William Cheng
  • Publication number: 20200047442
    Abstract: An apparatus and a method for detecting a failure in a press for punching semiconductor devices are provided, where the method comprises the steps of locating a semiconductor device between a first die-set part and a second die-set part comprised in the press, and moving the first die-set part and the second die-set part relative to each other for punching the semiconductor device therebetween.
    Type: Application
    Filed: August 9, 2018
    Publication date: February 13, 2020
    Inventors: Kwok Pun LAW, Hong Yeung LI, Cho Wai LEUNG
  • Patent number: 10555785
    Abstract: Example embodiments relate to robotic arm assemblies. The robotic arm assembly may include upper arm segment and shoulder coupling joint assembly. Upper arm segment includes a motor. Shoulder coupling joint assembly connects upper arm segment to shoulder segment. Shoulder coupling joint assembly includes distal and proximal shoulder joint subassemblies. Distal shoulder joint subassembly is connected to the upper arm segment. Distal shoulder joint subassembly includes gear train system having gear stages including first distal elbow gear stage and second distal elbow gear stage. First distal elbow gear stage includes bevel gears. Second distal elbow gear stage includes a planetary gear assembly. Proximal shoulder joint subassembly connects the shoulder segment to the distal shoulder joint subassembly.
    Type: Grant
    Filed: June 28, 2019
    Date of Patent: February 11, 2020
    Assignee: Bio-Medical Engineering (HK) Limited
    Inventors: Chung Kwong Yeung, Wai Leung William Cheng
  • Publication number: 20200013133
    Abstract: The present invention relates to computing system and method for determining a safety index of a product. The method includes: retrieving, by the computing system, a plurality of toxicity values of the product from a toxicity database, wherein the toxicity values correspond to a plurality types of the product respectively; retrieving, by the computing system, a plurality of weight values of the product from a weight database, wherein the weight values correspond to the types of the product respectively; and determining, by the computing system, the safety index of the product according to the toxicity values and the weight values.
    Type: Application
    Filed: July 9, 2019
    Publication date: January 9, 2020
    Inventors: Xueping CHEN, Zixiang CHEN, Wai Leung TAO
  • Patent number: 10523064
    Abstract: A system utilizes the colocation of the sensing and the control or other powered sections of the product to supplement the environmental conditions in which the energy harvesting sensors operate, thus providing a robust energy source for sensors to operate.
    Type: Grant
    Filed: August 18, 2017
    Date of Patent: December 31, 2019
    Assignee: Computime Ltd.
    Inventors: Brenton James Judge, Wai-Leung Ha, Kwok Wa Kenny Kam, Chi Lung Chan, San Bao Gordon Qian, Xiao Jun Zhang
  • Patent number: 10500008
    Abstract: Example embodiments relate to robotic arm assemblies. The robotic arm assembly may include forearm segment, upper arm segment, and elbow coupling joint assembly. Upper arm segment includes a motor. Elbow coupling joint assembly connects forearm and upper arm segments. Elbow coupling joint assembly includes distal and proximal elbow joint subassemblies. Distal elbow joint subassembly is connected to the forearm segment. Distal elbow joint subassembly includes gear train system having gear stages including first distal elbow gear stage, second distal elbow gear stage, third distal elbow gear stage, and fourth distal elbow gear stage. First distal elbow gear stage includes bevel gears. Second distal elbow gear stage includes spur gears. Third distal elbow gear stage includes bevel gears. Fourth distal elbow gear stage includes a planetary gear assembly. Proximal elbow joint subassembly connects the upper arm segment to the distal elbow joint subassembly.
    Type: Grant
    Filed: June 28, 2019
    Date of Patent: December 10, 2019
    Assignee: Bio-Medical Engineering (HK) Limited
    Inventors: Chung Kwong Yeung, Wai Leung William Cheng
  • Publication number: 20190321119
    Abstract: Example embodiments relate to robotic arm assemblies. The robotic arm assembly may include upper arm segment and shoulder coupling joint assembly. Upper arm segment includes a motor. Shoulder coupling joint assembly connects upper arm segment to shoulder segment. Shoulder coupling joint assembly includes distal and proximal shoulder joint subassemblies. Distal shoulder joint subassembly is connected to the upper arm segment. Distal shoulder joint subassembly includes gear train system having gear stages including first distal elbow gear stage and second distal elbow gear stage. First distal elbow gear stage includes bevel gears. Second distal elbow gear stage includes a planetary gear assembly. Proximal shoulder joint subassembly connects the shoulder segment to the distal shoulder joint subassembly.
    Type: Application
    Filed: June 28, 2019
    Publication date: October 24, 2019
    Inventors: Chung Kwong Yeung, Wai Leung William Cheng
  • Publication number: 20190314100
    Abstract: Example embodiments relate to robotic arm assemblies. The robotic arm assembly may include forearm segment, upper arm segment, and elbow coupling joint assembly. Upper arm segment includes a motor. Elbow coupling joint assembly connects forearm and upper arm segments. Elbow coupling joint assembly includes distal and proximal elbow joint subassemblies. Distal elbow joint subassembly is connected to the forearm segment. Distal elbow joint subassembly includes gear train system having gear stages including first distal elbow gear stage, second distal elbow gear stage, third distal elbow gear stage, and fourth distal elbow gear stage. First distal elbow gear stage includes bevel gears. Second distal elbow gear stage includes spur gears. Third distal elbow gear stage includes bevel gears. Fourth distal elbow gear stage includes a planetary gear assembly. Proximal elbow joint subassembly connects the upper arm segment to the distal elbow joint subassembly.
    Type: Application
    Filed: June 28, 2019
    Publication date: October 17, 2019
    Inventors: Chung Kwong Yeung, Wai Leung William Cheng
  • Patent number: 10379966
    Abstract: Systems and methods for replication and validation between a plurality of nodes in a cloud-based system forming a cluster include replicating a database and a software state between the plurality of nodes utilizing a replication algorithm which elects a master of the plurality of nodes and remaining nodes comprising peers, wherein the master is configured to perform the replicating; validating database sequences in the database at all of the plurality of nodes utilizing the replication algorithm to ensure sequential order of the validating between the plurality of nodes; and, responsive to differences between a peer and the master, performing a failure recovery in the database at the peer.
    Type: Grant
    Filed: November 15, 2017
    Date of Patent: August 13, 2019
    Assignee: Zscaler, Inc.
    Inventors: Tejus Gangadharappa, Wai Leung Chan, Dinoja Padmanabhan, Sivaprasad Udupa
  • Publication number: 20190191643
    Abstract: A hydroponic cultivation apparatus, a system and a method for facilitating hydroponic cultivation is disclosed. The hydroponic cultivation apparatus includes a reservoir, a plinth, a grow tray with a grow tray lid, and a docking with coupler. The reservoir, placed upon the plinth, is located at a higher position adjacent to the grow tray for optimizing liquid circulation from the reservoir to the grow tray and vice-versa using one or more pipes, a solenoid valve and a pump. The base further includes a dock coupled to the grow tray for providing an electrical connectivity to the grow tray and simultaneously allowing the liquid to flow through the grow tray without being leaked. Further, the apparatus is having a roof which is provided with sources of illumination for providing light required for plant growth.
    Type: Application
    Filed: December 21, 2018
    Publication date: June 27, 2019
    Inventors: Sze Yin Yvonne Chan, Chun Yuen Lam, Kwong Wai Leung
  • Publication number: 20190146884
    Abstract: Systems and methods for replication and validation between a plurality of nodes in a cloud-based system forming a cluster include replicating a database and a software state between the plurality of nodes utilizing a replication algorithm which elects a master of the plurality of nodes and remaining nodes comprising peers, wherein the master is configured to perform the replicating; validating database sequences in the database at all of the plurality of nodes utilizing the replication algorithm to ensure sequential order of the validating between the plurality of nodes; and, responsive to differences between a peer and the master, performing a failure recovery in the database at the peer.
    Type: Application
    Filed: November 15, 2017
    Publication date: May 16, 2019
    Inventors: Tejus GANGADHARAPPA, Wai Leung CHAN, Dinoja PADMANABHAN, Sivaprasad UDUPA
  • Publication number: 20190140856
    Abstract: Building blocks for a smart device such as a thermostat include a user interface (UI) unit and a terminal (TML) unit. A UI unit may support one or more input data from a user and/or sensors and/or one or more control terminals. The UI unit may process each input datum or a combination of the input data, generate a control signal to one or more control terminals based on the processing, and send the control signal to one or more control terminals over a communication channel. A terminal unit, which may consist of one or more control terminals, transforms the received control signal into one or more controls to one or more associated environmental generators. One or more UI units may control one or more controlled apparatuses in conjunction with a mobile app to allow a unified user experience.
    Type: Application
    Filed: July 17, 2018
    Publication date: May 9, 2019
    Inventors: Hung Bun Choi, Wai-Leung Ha, Leung Yin Chan, Yau Wai Ng, Chi Chung Liu, Luke Li, Tsz Kin Lee, Chi Lung Chan, Hamza Yilmaz
  • Publication number: 20190083306
    Abstract: A drug applicator for a system for ultrasound-enhanced delivery of at least one drug to a target site in a intraocular space, the system comprising a signal generating unit operationally connected to an ultrasound transducer, wherein the drug applicator comprises at least one space hold the drug, is made from a low ultrasound attenuation material, is configured to provide low ultrasound loss coupling of the system to the sclera, and is configured to be mechanically coupled to the system and further configured to be coupled to the ultrasound transducer with low ultrasound loss. The signal generating unit and/or the ultrasound transducer are configured to emit an ultrasound wave form in at least one application cycle, the application cycle comprising at least one ultrasound emitting event with a time duration TA and a waiting period with a time duration TW.
    Type: Application
    Filed: November 16, 2018
    Publication date: March 21, 2019
    Inventors: Wai Leung Langston Suen, Sin Hang Sarah Cheung, Jan Frederik Engels
  • Patent number: D895809
    Type: Grant
    Filed: June 26, 2018
    Date of Patent: September 8, 2020
    Assignee: SYNAPTIVE MEDICAL (BARBADOS) INC.
    Inventors: Mark Tullio Morreale, William Wai-Leung Lau, Daniel Gavin Harrison