Patents by Inventor Ping-Shun Chan

Ping-Shun 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).

  • Patent number: 6056342
    Abstract: A type of multi-purpose tongs for gripping food and small articles which is made of a resilient metal strap, comprises a U-shape handle and two opposing pairs of arms and holding members. The arms have an elongated shape and are crossed to assume a ready-to-work state. The holding members are configured to grip articles and to prevent the arms from slipping out of the crossed state. When in use, the tongs are pinched inwards with fingers to increase the deformation of the U-shaped handle and then to open the holding members to grip articles. After gripping, it is not necessary to exert forces since an article can be held continuously by the resilience provided by the deformation of the handle.
    Type: Grant
    Filed: November 23, 1998
    Date of Patent: May 2, 2000
    Inventor: Ping-Shun Chan