Patents by Inventor Leung Ka HIM

Leung Ka HIM 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: 20210053710
    Abstract: The present disclosure relates to the technical field of small household appliances and discloses a separable evacuation device. The separable evacuation device includes an evacuation module. The evacuation module includes a base, which is connected to an opening of a to-be-evacuated container; a vacuum pump, which is disposed on the base and configured to vacuum the to-be-evacuated container; a power supply assembly, which is connected to the vacuum pump and configured to supply power to the vacuum pump; and a control assembly, which is connected to the power supply assembly and the vacuum pump and includes a vacuum pressure switch. The vacuum pressure switch is configured to detect an air pressure value in the to-be-evacuated container and control the power supply assembly to perform one of supplying power to the vacuum pump or powering off the vacuum pump.
    Type: Application
    Filed: August 21, 2020
    Publication date: February 25, 2021
    Applicants: Defond Electech CO., Ltd, Defond Components Limited
    Inventors: Nieh Cheng CHEN, Poon Kai KEI, Leung Ka HIM, Chan Ka LEUNG