Patents by Inventor Francis D. Pillon

Francis D. Pillon 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: 4883363
    Abstract: A device inter alia for uniformly distributing solid and/or liquid particles. It comprises, on the one hand, a hollow vertical primary shaft (1) driven in rotation, the bottom end of the shaft comprising a primary ring (4), the bottom surface of which bears vertical teeth (5) disposed in concentric circles, the device also comprising a hollow vertical secondary shaft (2) driven in rotation in the opposite direction to the primary shaft (1) and at its bottom end comprising a cylindrical cage (10) comprising a secondary ring (11) and a disc (12) connected to the bottom surface of the secondary ring (11) by at least three bars (13), the top surface of the disc (12) comprising vertical teeth (14) disposed concentrically and staggered with respect to the teeth (5) in the primary ring (4), and at its center the disc comprises a circular anvil (15) coaxial therewith and at least equal in diameter to the primary shaft (1).
    Type: Grant
    Filed: September 8, 1988
    Date of Patent: November 28, 1989
    Inventors: Francis D. Pillon, Michel A. Andriot-Ballet