Patents by Inventor Ernest C. Kellenberger

Ernest C. Kellenberger 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: 5400516
    Abstract: An adjustable stand developed to facilitate an accurate measurement of vertical distances from a surface, on which at least one leg of the stand rests to a given point above that surface. The surface may be either ground surface or a surveyor's hub on a stake. The stand has two legs one leg of which is both a distance measuring device and a plumb finder by which the verticality of the leg may be ascertained. The second leg is formed of two spaced apart beams to provide stability, the beams having pointed ends for insertion into the surface on which the device stands.
    Type: Grant
    Filed: June 10, 1993
    Date of Patent: March 28, 1995
    Inventor: Ernest C. Kellenberger