Patents by Inventor Keith H. McCall

Keith H. McCall 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: 4823884
    Abstract: The problem of having dirt and debris stick to the shank of a subsoil plow is solved by providing a non-stick cover body that attaches to a lower portion of the shank and is sized and configured and of a material to which dirt and debris will not adhere. Fasteners in the form of staples insert into holes in laterally spaced tail edge portions is provided. The body is made of a sheet of ultra high molecular weight-polyethylene that is sized, and then bent around a mandril, heated, then cooled and machined as required to be generally complementary with the shape of the lower portion of the shank to which the body is fastened.
    Type: Grant
    Filed: October 21, 1987
    Date of Patent: April 25, 1989
    Inventor: Keith H. McCall