Patents by Inventor Logan Deane Hurlbut

Logan Deane Hurlbut 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).

  • Tubeless fertilizer knife
    Patent number: 9974227
    Abstract: An improved fertilizer knife presents a leading edge, a first flexible fertilizer tube receiving portion and a second fertilizer tube receiving portion. The first and second flexible tube receiving portions are precision cast to frictionally receive the distal end of a flexible polymer fertilizer tube. The first and second flexible tube receiving portions are adapted so that the second flexible tube receiving portion can be mounted to the first flexible tube receiving portion. Both flexible tube receiving portions also each have at least one opening at their lower ends for allowing fertilizer to escape from a flexible fertilizer tube.
    Type: Grant
    Filed: November 23, 2015
    Date of Patent: May 22, 2018
    Assignee: Shield Industries, Inc.
    Inventors: Mike J Bergmeier, Logan Deane Hurlbut
  • Tubeless fertilizer knife
    Patent number: 9192095
    Abstract: An improved fertilizer knife presents a leading edge and rear tube receiving portion. The rear tube receiving portion is precision cast to frictionally receive the distal end of a flexible polymer fertilizer tube which is connected, at least indirectly, to an implement fertilizer tank. The rear tube receiving portion also has at least one opening at the lower end thereof for allowing fertilizer to escape from the flexible polymer fertilizer tube into the surrounding soil during a fertilizing operation.
    Type: Grant
    Filed: March 13, 2013
    Date of Patent: November 24, 2015
    Assignee: ShieldIndustries, Inc.
    Inventors: Mike J Bergmeier, Logan Deane Hurlbut