Patents Assigned to Dynavision Corporation
  • Amusement device with a bubble movable in a liquid having means for controlling the size and movement of the bubble
    Patent number: 4006902
    Abstract: An amusement device comprising a container having a hollow space filled with a liquid having a bubble movable therein. The device includes a channel separate from said hollow space; for trapping a portion of the bubble so as to be able to control its size and in a preferred embodiment of the invention an arrangement to make the bubble move rapidly between two compartments formed in the hollow space.
    Type: Grant
    Filed: March 19, 1975
    Date of Patent: February 8, 1977
    Assignee: Dynavision Corporation
    Inventor: Antoine B. Khawand