Patents by Inventor Wing Yin Chung

Wing Yin Chung 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: 20230277005
    Abstract: A handheld electric milk frother including a handle and an immersing portion coupled with the handle. The immersing portion includes a cap and a rotatable frothing means coupled with the cap. The frothing means includes a substantially closed ring member formed by a first half ring member and a second half ring member joining with each other, with the first half ring member oriented horizontally and the second half ring member oriented obliquely relative to the first half ring member and extending downwardly from the first half ring member, so that an obtuse angle is formed between the first and second half ring members; and a plurality of coils wound on the substantially closed ring member. The cap has an upper part and the upper part has the largest cross section thereof larger than and sufficient to cover the largest cross section of the substantially closed ring member.
    Type: Application
    Filed: March 2, 2022
    Publication date: September 7, 2023
    Inventors: Yan Lam Napolia LEE, Wing Yin CHUNG
  • Patent number: 11612141
    Abstract: A retractable leash with automatic locking and unlocking function including a housing, a spool with a cord wound therearound, a braking means, a cord opening, a stopping means and a biasing means. A second portion of the stopping means abuts against the cord in such a way that tensioning of the cord by an external force actuates the stopping means to overcome biasing force of the biasing means to rotate to the locking position, and untensioning of the cord by the external force returns the stopping means from the locking position to the unlocking position. The present invention automatically locks the leash when the dog rushes, thus improving safety of the leash.
    Type: Grant
    Filed: December 19, 2019
    Date of Patent: March 28, 2023
    Inventor: Wing Yin Chung
  • Patent number: 11445705
    Abstract: A retractable leash with improved locking and unlocking mechanism, having a housing; a spool disposed inside the housing and biased towards the winding direction; a braking means; a locking means rotatable between a locking position to stop rotation of the spool towards the unwinding direction and an unlocking position; a biasing means which biases the locking means towards the unlocking position; a press button pivotable between a pressed position and a released position; an actuating means rotatably engaged with the press button and the locking means between a default position and an actuating position; and a sliding button having an upper portion exposing on the upper portion of the press button and a lower portion extending downwards through the press button into the housing.
    Type: Grant
    Filed: December 23, 2019
    Date of Patent: September 20, 2022
    Inventor: Wing Yin Chung
  • Publication number: 20200288674
    Abstract: A retractable leash with improved locking and unlocking mechanism, having a housing; a spool disposed inside the housing and biased towards the winding direction; a braking means; a locking means rotatable between a locking position to stop rotation of the spool towards the unwinding direction and an unlocking position; a biasing means which biases the locking means towards the unlocking position; a press button pivotable between a pressed position and a released position; an actuating means rotatably engaged with the press button and the locking means between a default position and an actuating position; and a sliding button having an upper portion exposing on the upper portion of the press button and a lower portion extending downwards through the press button into the housing.
    Type: Application
    Filed: December 23, 2019
    Publication date: September 17, 2020
    Inventor: Wing Yin CHUNG
  • Publication number: 20200205380
    Abstract: A retractable leash with automatic locking and unlocking function including a housing, a spool with a cord wound therearound, a braking means, a cord opening, a stopping means and a biasing means. A second portion of the stopping means abuts against the cord in such a way that tensioning of the cord by an external force actuates the stopping means to overcome biasing force of the biasing means to rotate to the locking position, and untensioning of the cord by the external force returns the stopping means from the locking position to the unlocking position. The present invention automatically locks the leash when the dog rushes, thus improving safety of the leash.
    Type: Application
    Filed: December 19, 2019
    Publication date: July 2, 2020
    Inventor: Wing Yin CHUNG
  • Publication number: 20190210300
    Abstract: The present invention relates to a pet toy and manufacturing method thereof. The pet toy comprises a plastic material formed by bonding expanded thermoplastic polyurethane foam beads with an adhesive; wherein each of the expanded thermoplastic polyurethane foam beads is in an irregular spherical shape; each of the expanded thermoplastic polyurethane foam beads has a length of 3-6 mm in each of x, y, z directions; each of the expanded thermoplastic polyurethane foam beads has a weight of 20-30 mg; the expanded thermoplastic polyurethane foam beads have a bulk density of 100-150 g. The pet toy has a high tensile strength, a high resilience, a low water absorption rate and a light weight.
    Type: Application
    Filed: January 8, 2018
    Publication date: July 11, 2019
    Inventor: Wing Yin CHUNG
  • Patent number: 9107393
    Abstract: A structure of a handle for a retractable leash comprises a holding piece; the holding piece is formed integrally as one piece by soft gel; a housing of the retractable leash is an assembly of a left housing and a right housing; the holding piece is fitted between the left housing and the right housing.
    Type: Grant
    Filed: March 21, 2013
    Date of Patent: August 18, 2015
    Inventor: Wing Yin Chung
  • Publication number: 20140216361
    Abstract: A structure of a handle for a retractable leash comprises a holding piece; the holding piece is formed integrally as one piece by soft gel; a housing of the retractable leash is an assembly of a left housing and a right housing; the holding piece is fitted between the left housing and the right housing.
    Type: Application
    Filed: March 21, 2013
    Publication date: August 7, 2014
    Inventor: Wing Yin CHUNG
  • Publication number: 20120234959
    Abstract: A retractable reel rotational control apparatus, comprising a mechanical actuator which simultaneously brakes and locks the reel in a single action of the actuator, and releases the brake and lock with a subsequent action, wherein the reel brake is separate from the actuator.
    Type: Application
    Filed: March 15, 2011
    Publication date: September 20, 2012
    Applicant: ABSOLUTELYNEW, INC.
    Inventors: Tristan Christianson, Wing Yin Chung
  • Patent number: D803490
    Type: Grant
    Filed: August 17, 2015
    Date of Patent: November 21, 2017
    Inventor: Wing Yin Chung