Patents by Inventor Paul W. Shoemaker

Paul W. Shoemaker 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).

  • Ground tilling apparatus
    Patent number: 3941193
    Abstract: Disclosed is a tilling apparatus characterized by a regulating drive connection between the towing tractor drive axle and the tiller shaft, the tiller tines having a modified arcuate configuration which provide a pocketed, rather than a furrowed or channeled, tilling depth profile.
    Type: Grant
    Filed: October 10, 1974
    Date of Patent: March 2, 1976
    Inventor: Paul W. Shoemaker