Patents by Inventor Harold R. Luhn

Harold R. Luhn 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: 6105354
    Abstract: A new and improved rake apparatus and methods are provided for the easy and safe exchange of process equipment towed behind the rake for combined raking and processing agricultural operations. The rake may be mounted on a large frame with a substantial extension PTO shaft capable of transferring power from the power source (usually a tractor) to a baler, fluffer rake, or other towed farm implement attached to the end of said frame, through connection to a tractor's PTO shaft via the use of a telescopic PTO shaft. Once connected to the power source, one has a combination of a rake having mounted swing arms that extend outwardly from the framed device and a PTO shaft driving the baler, tedder rake, or other towed farm implement, enabling the rake to swing hay and other cut materials into the path of the towed implement for further processing.
    Type: Grant
    Filed: June 7, 1999
    Date of Patent: August 22, 2000
    Inventors: Harold R. Luhn, Luther J. Hueske