Patents by Inventor Andrew S. Wollmann

Andrew S. Wollmann 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).

  • No-till drill liquid fertilizer applicator system
    Patent number: 7451711
    Abstract: A no-till drill liquid fertilizer applicator system for effectively protecting a fertilizer dispensing tube on a no-till drill while dispensing liquid fertilizer with small grain seed. The no-till drill liquid fertilizer applicator system includes a receiver tube, a guide tube attached to the receiver tube to receive a fertilizer tube, and a wear member removably received within the receiver tube. The fertilizer tube extends through the guide tube to within a guide channel within an upper portion of the wear member and continues to a rear portion of the wear member to dispense the liquid fertilizer upon a seed bed.
    Type: Grant
    Filed: April 5, 2006
    Date of Patent: November 18, 2008
    Assignee: Thunder Bird H.B. Inc.
    Inventor: Andrew S. Wollmann