Patents by Inventor Dwayne L. Winkles

Dwayne L. Winkles 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).

  • Land levelling equipment
    Patent number: 4082150
    Abstract: A basic land leveller has the side plates and moldboard carriers. Angle irons are welded to the top of the carriers to form the moldboard carriers into a rigid structure and to form a guide for the wheel booms extending behind the leveller and a tongue extending in front of the leveller. The equipment is shipped with the wheel booms and tongue aligned with the moldboard carriers and the buyer bolts the booms into the boom guides and the tongue into the tongue guides.The moldboards are formed of a plate broken three times to form three panels with a blade bolted to the bottom panel.
    Type: Grant
    Filed: April 14, 1977
    Date of Patent: April 4, 1978
    Inventor: Dwayne L. Winkles