Patents by Inventor Vincent L. Y. Tong

Vincent L. Y. Tong 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: 5169036
    Abstract: A dispenser for granular material or liquid includes a dispenser housing attached to a granular material/liquid-holding container. The housing has a hemispherical distal end including an exit port and a curved linear slot. A spherical casing having a common inlet/outlet port and an attached lever arm riding in the slot is positioned in the distal end of the housing so that in a fill position a measured quantity of the granular material/liquid passes from the container and fills a predetermined volume or two incremental volumes within the casing. Upon hand and finger movement of the lever arm to a first or second position the casing is sealingly rotated to a dispense position with cessation of access of material from the container and with the casing inlet/outlet port then aligned for at least partially aligned with the housing exit port. The measured volume or volumes then flow from the casing by gravity.
    Type: Grant
    Filed: March 13, 1992
    Date of Patent: December 8, 1992
    Inventor: Vincent L. Y. Tong