Patents by Inventor Poon Chi Kwong

Poon Chi Kwong 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).

  • Liquid detection vacuum
    Patent number: 11628964
    Abstract: An appliance is provided that is able to vacuum and heat seal plastic bag members containing liquids such as sauces and soups. The appliance may take on a uniquely shaped profile to allow the liquid to sit upright within a bag during the vacuuming process. The appliance also preferably includes a pressure sensor to constantly monitor pressure inside of the bag during the vacuum and sealing process. This may help to prevent liquid from being sucked up and into the appliance.
    Type: Grant
    Filed: April 15, 2021
    Date of Patent: April 18, 2023
    Assignee: Sunbeam Products, Inc.
    Inventors: David Owens, Chan Wing Cheuk, Poon Chi Kwong
  • LIQUID DETECTION VACUUM
    Publication number: 20210323708
    Abstract: An appliance is provided that is able to vacuum and heat seal plastic bag members containing liquids such as sauces and soups. The appliance may take on a uniquely shaped profile to allow the liquid to sit upright within a bag during the vacuuming process. The appliance also preferably includes a pressure sensor to constantly monitor pressure inside of the bag during the vacuum and sealing process. This may help to prevent liquid from being sucked up and into the appliance.
    Type: Application
    Filed: April 15, 2021
    Publication date: October 21, 2021
    Inventors: David Owens, Chan Wing Cheuk, Poon Chi Kwong