Patents by Inventor Tom Rudy Dvorak

Tom Rudy Dvorak 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).

  • Apparatus for dispensing powdered and granulated materials
    Patent number: 5779161
    Abstract: A simple, inexpensive apparatus for dispensing powdered or granulated material includes a container, a tight-fitting, removable container top, and a conventional blower, such as a leaf blower. The intake of the blower is connected to a container outlet tube. The two described embodiments include arrangements of air inlet orifices, air inlet tubes, and air control doors to control the concentration of the air/material mixture discharged from the blower discharge nozzle.
    Type: Grant
    Filed: November 28, 1995
    Date of Patent: July 14, 1998
    Assignee: Tom Dvorak
    Inventor: Tom Rudy Dvorak