Patents by Inventor Andrew D. Whyman

Andrew D. Whyman 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).

  • Auger for particulate materials
    Patent number: 4913280
    Abstract: An auger assembly for transporting particulate material. The auger assembly comprises a housing, a frame to support the housing, and an auger rotatably mounted in said housing. The auger comprises a thermoplastic material helically wrapped around a metal shaft. The material has a planar portion in contact with said metal shaft and a radially extending flight portion. A motor is connected to the shaft to rotate the auger.
    Type: Grant
    Filed: December 20, 1988
    Date of Patent: April 3, 1990
    Assignee: Du Pont Canada Inc.
    Inventor: Andrew D. Whyman