Patents by Inventor Ying Kwan Wong

Ying Kwan Wong 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: 10786048
    Abstract: A cord lock has a housing with an interior cavity and an opening extending between the front and the back for receiving a cord, and an actuator having two legs that are configured to slide within the interior cavity of the housing. A spring is disposed between the housing and the actuator to bias the actuator in a raised position relative to the housing. There is a cam disposed in the interior cavity of the housing. The bottom of the cam is rotatably connected to the housing and the top is rotatably connected to the legs of the actuator. In a resting position, the spring presses the top of the cam against the housing such that when a cord is extended through the opening, the cam locks the cord in place between the cam and the housing. Depressing the actuator compresses the spring and rotates the cam.
    Type: Grant
    Filed: August 29, 2019
    Date of Patent: September 29, 2020
    Assignee: Duraflex Hong Kong Limited
    Inventors: Kevin Wellhausen Dee, Yick Fai Chan, Ying Kwan Wong
  • Patent number: 10709207
    Abstract: A attachment system is formed by a primary device and a secondary device connected to the primary device in a pivoting manner. The primary device has a main body, two lateral sides and a bar for attaching the primary device to another object. Each of the lateral sides has a protrusion extending laterally outward from the lateral sides. The secondary device has two lateral sides, each equipped with an aperture that corresponds to one of the protrusions on the primary device, so that fitting the protrusions into the apertures pivotally connects the primary device to the secondary device, with the lateral sides of the secondary device being disposed outside of the lateral sides of the primary device. The secondary device can be pivoted between a folded position where the secondary device lies against the primary device, and an open position where the secondary device is raised up.
    Type: Grant
    Filed: January 18, 2019
    Date of Patent: July 14, 2020
    Assignee: Duraflex Hong Kong Limited
    Inventors: Yick Fai Chan, Ying Kwan Wong
  • Publication number: 20190380452
    Abstract: A cord lock has a housing with an interior cavity and an opening extending between the front and the back for receiving a cord, and an actuator having two legs that are configured to slide within the interior cavity of the housing. A spring is disposed between the housing and the actuator to bias the actuator in a raised position relative to the housing. There is a cam disposed in the interior cavity of the housing. The bottom of the cam is rotatably connected to the housing and the top is rotatably connected to the legs of the actuator. In a resting position, the spring presses the top of the cam against the housing such that when a cord is extended through the opening, the cam locks the cord in place between the cam and the housing. Depressing the actuator compresses the spring and rotates the cam.
    Type: Application
    Filed: August 29, 2019
    Publication date: December 19, 2019
    Applicant: Duraflex Hong Kong Limited
    Inventors: Kevin Wellhausen DEE, Yick Fai CHAN, Ying Kwan WONG
  • Patent number: 10441035
    Abstract: A cord lock has a housing with an interior cavity and an opening extending between the front and the back for receiving a cord, and an actuator having two legs that are configured to slide within the interior cavity of the housing. A spring is disposed between the housing and the actuator to bias the actuator in a raised position relative to the housing. There is a cam disposed in the interior cavity of the housing. The bottom of the cam is rotatably connected to the housing and the top is rotatably connected to the legs of the actuator. In a resting position, the spring presses the top of the cam against the housing such that when a cord is extended through the opening, the cam locks the cord in place between the cam and the housing. Depressing the actuator compresses the spring and rotates the cam.
    Type: Grant
    Filed: June 8, 2018
    Date of Patent: October 15, 2019
    Assignee: Duraflex Hong Kong Limited
    Inventors: Kevin Wellhausen Dee, Yick Fai Chan, Ying Kwan Wong
  • Patent number: 10433619
    Abstract: A strap adjustment system has a base body having a bottom wall, two side walls and a strap retaining bar extending between the two side walls, the bottom wall having an aperture therethrough with screw threads extending around an inside surface, and a screw disc having a central protrusion and screw threads extending around the central protrusion. The central protrusion fits through the aperture in the base body by rotating the screw disc so that the threads in the screw disc mate with the threads in the aperture, such that a height of the protrusion above the bottom wall of the base body is adjustable by turning the screw disc. In situations where a high degree of friction is required, the protrusion can be positioned at a maximum height through the aperture, and in situations where a low degree of friction is desired, the protrusion can be positioned lower.
    Type: Grant
    Filed: January 11, 2018
    Date of Patent: October 8, 2019
    Assignee: Duraflex Hong Kong Limited
    Inventors: Ying Kwan Wong, Yick Fai Chan
  • Publication number: 20190208868
    Abstract: A strap adjustment system has a base body having a bottom wall, two side walls and a strap retaining bar extending between the two side walls, the bottom wall having an aperture therethrough with screw threads extending around an inside surface, and a screw disc having a central protrusion and screw threads extending around the central protrusion. The central protrusion fits through the aperture in the base body by rotating the screw disc so that the threads in the screw disc mate with the threads in the aperture, such that a height of the protrusion above the bottom wall of the base body is adjustable by turning the screw disc. In situations where a high degree of friction is required, the protrusion can be positioned at a maximum height through the aperture, and in situations where a low degree of friction is desired, the protrusion can be positioned lower.
    Type: Application
    Filed: January 11, 2018
    Publication date: July 11, 2019
    Applicant: Duraflex Hong Kong Limited
    Inventors: Ying Kwan WONG, Yick Fai CHAN
  • Publication number: 20190166956
    Abstract: A attachment system is formed by a primary device and a secondary device connected to the primary device in a pivoting manner. The primary device has a main body, two lateral sides and a bar for attaching the primary device to another object. Each of the lateral sides has a protrusion extending laterally outward from the lateral sides. The secondary device has two lateral sides, each equipped with an aperture that corresponds to one of the protrusions on the primary device, so that fitting the protrusions into the apertures pivotally connects the primary device to the secondary device, with the lateral sides of the secondary device being disposed outside of the lateral sides of the primary device. The secondary device can be pivoted between a folded position where the secondary device lies against the primary device, and an open position where the secondary device is raised up.
    Type: Application
    Filed: January 18, 2019
    Publication date: June 6, 2019
    Applicant: Duraflex Hong Kong Limited
    Inventors: Yick Fai CHAN, Ying Kwan WONG
  • Publication number: 20190069643
    Abstract: An attachment system is formed by a primary device and a secondary device connected to the primary device in a pivoting manner. The primary device has a main body, two lateral sides and a bar for attaching the primary device to another object. Each of the lateral sides has a protrusion extending laterally outward from the lateral sides. The secondary device has two lateral sides, each equipped with an aperture that corresponds to one of the protrusions on the primary device, so that fitting the protrusions into the apertures pivotally connects the primary device to the secondary device, with the lateral sides of the secondary device being disposed outside of the lateral sides of the primary device. The secondary device can be pivoted between a folded position where the secondary device lies against the primary device, and an open position where the secondary device is raised up.
    Type: Application
    Filed: September 5, 2017
    Publication date: March 7, 2019
    Applicant: Duraflex Hong Kong Limited
    Inventors: Yick Fai CHAN, Ying Kwan WONG
  • Patent number: 10219587
    Abstract: An attachment system is formed by a primary device and a secondary device connected to the primary device in a pivoting manner. The primary device has a main body, two lateral sides and a bar for attaching the primary device to another object. Each of the lateral sides has a protrusion extending laterally outward from the lateral sides. The secondary device has two lateral sides, each equipped with an aperture that corresponds to one of the protrusions on the primary device, so that fitting the protrusions into the apertures pivotally connects the primary device to the secondary device, with the lateral sides of the secondary device being disposed outside of the lateral sides of the primary device. The secondary device can be pivoted between a folded position where the secondary device lies against the primary device, and an open position where the secondary device is raised up.
    Type: Grant
    Filed: September 5, 2017
    Date of Patent: March 5, 2019
    Assignee: Duraflex Hong Kong Limited
    Inventors: Yick Fai Chan, Ying Kwan Wong