Patents by Inventor Tsan Ho CHAN

Tsan Ho 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).

  • Publication number: 20230107675
    Abstract: A venting device comprises an air channel and a rotary venting rod, wherein: the air channel comprises a first end facing an outer surface of the rotary venting rod and a second end away from the rotary venting rod; the outer surface of the rotary venting rod is provided with a recessed venting slot in fluid communication with ambient air, about which the rotary venting rod may be rotated about a rotation axis extending longitudinally thereof to provide a vented state and a sealed state. In the vented state, at least a portion of the venting slot of the rotary venting rod is in fluid communication with the air channel and thereby brings the air channel into fluid communication with ambient air via the venting slot. In the sealed state, the venting slot of the rotary venting rod is not in fluid communication with the air channel and the first end of the air channel is sealed by the outer surface of the rotating vent rod. The venting device of the present invention is easy to manufacture and assemble.
    Type: Application
    Filed: February 20, 2020
    Publication date: April 6, 2023
    Applicant: Master Plans LLC
    Inventors: Siu Wah Wong, Yi Chia Chen, Szu Wen Wang, Tsan Ho Chan
  • Patent number: 11338962
    Abstract: The invention provides a bag container with a sealing mechanism including first and second container housings to define an open top. The sealing mechanism includes female and male engagement members respectively positioned on the two container housings. The male engagement member includes a body portion and at least a pair of protrusions extending from opposite sides of the body portion and facing away from each other, the protrusions each having opposite first and second side surfaces, and the second side surface extending at an acute angle relative to an orthogonal direction of the longitudinal axis of the male engagement member. The female and male engagement members are sized and shaped for mating engagement to hermetically seal the open top. The invention also provides a sealing mechanism comprising female and male engagement members having mating wavy cross-sectional profiles in a plane parallel to the respective container housings.
    Type: Grant
    Filed: April 19, 2021
    Date of Patent: May 24, 2022
    Assignee: KING'S FLAIR MARKETING LIMITED
    Inventors: Siu Wah Wong, Tsan Ho Chan, William Huang, Ho Yan Leung
  • Publication number: 20220097920
    Abstract: The invention provides a bag container with a sealing mechanism including first and second container housings to define an open top. The sealing mechanism includes female and male engagement members respectively positioned on the two container housings. The male engagement member includes a body portion and at least a pair of protrusions extending from opposite sides of the body portion and facing away from each other, the protrusions each having opposite first and second side surfaces, and the second side surface extending at an acute angle relative to an orthogonal direction of the longitudinal axis of the male engagement member. The female and male engagement members are sized and shaped for mating engagement to hermetically seal the open top. The invention also provides a sealing mechanism comprising female and male engagement members having mating wavy cross-sectional profiles in a plane parallel to the respective container housings.
    Type: Application
    Filed: April 19, 2021
    Publication date: March 31, 2022
    Inventors: Siu Wah WONG, Tsan Ho CHAN, William HUANG, Ho Yan LEUNG
  • Publication number: 20210253310
    Abstract: The present invention relates to a storage container comprising a container body (18), a lid (16) placed on the container body, and an actuation apparatus configured to actuate the lid (16) to move between a closed position where the container is in the closed state and a release position where the container is in the ready to open state. One or more body cam surfaces (1852) are arranged on an outer surface of a side wall of the container body (18), and one or more lid cam surfaces (1642) are arranged on an inner surface of a neck portion of the lid in such a manner that the body cam surfaces (1852) are configured to oppose the corresponding lid cam surfaces (1642).
    Type: Application
    Filed: August 15, 2019
    Publication date: August 19, 2021
    Inventors: Siu Wah WONG, Tsan Ho CHAN
  • Patent number: D964806
    Type: Grant
    Filed: May 13, 2020
    Date of Patent: September 27, 2022
    Assignee: AEGIS GLOBAL RESOURCES (HK) LIMITED
    Inventors: Siu Wah Wong, Chi Yeung Chan, David Randall Knott, John Patrick Rose, Fat Sun Kwok, Ho Yan Leung, Tsan Ho Chan, Shun Sang Poon, Chun Na Wong