Patents by Inventor Daniel J. Whittenberger

Daniel J. Whittenberger 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).

  • Sidewalk edging device
    Patent number: 4852260
    Abstract: A tractor-towable sidewalk edging device includes a pair of laterally spaced cutting blade members and the depth of the cut the blade members make in vegetation to be trimmed is controllable by adding or removing weight members to receptacle members which form a part of the device. The lateral spacing between the cutting blade members is adjustable in three different ways. Each cutting blade member may also be pivoted about a vertical axis.
    Type: Grant
    Filed: April 22, 1988
    Date of Patent: August 1, 1989
    Assignee: Luis A. Herrero
    Inventors: Joseph W. Federico, Daniel J. Whittenberger