Patents by Inventor Robert Boertlein

Robert Boertlein 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: 5833011
    Abstract: A multi-purpose landscaping device is provided including a horizontal rake assembly with a plurality of tines coupled thereto and depending therefrom. A bracket assembly is coupled to the horizontal rake assembly such that a three point hitch of a tractor may be coupled thereto for selectively elevating the rake assembly. An adjustable blade mechanism is provided with a blade having a length equal to that of the rake assembly. The adjustable blade mechanism further includes a blade hydraulic cylinder adapted to raise and lower the blade with respect to the rake assembly. An adjustable roller mechanism with a similar associated hydraulic cylinder is further provided.
    Type: Grant
    Filed: August 7, 1997
    Date of Patent: November 10, 1998
    Inventor: Robert Boertlein