Patents by Inventor Carroll T. Tostenson

Carroll T. Tostenson 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).

  • Self sharpening wood log slicer
    Patent number: 4896574
    Abstract: An improved log slicer requiring less power to operate due to the slicing action of the blade as opposed to the straight through crushing action of the prior art and as less power is required the blade can be made thinner as it does not bend, deflect or break as readily, and the slicing action also sharpens the blade with each stroke, making for increased production as there is no down time and the machine is much faster than the prior art shears.
    Type: Grant
    Filed: September 26, 1988
    Date of Patent: January 30, 1990
    Inventors: Harold L. Hull, Carroll T. Tostenson, Drusilla M. Tostenson
  • Wood log shear
    Patent number: D291320
    Type: Grant
    Filed: June 24, 1985
    Date of Patent: August 11, 1987
    Inventors: Carroll T. Tostenson, Drusilla M. Tostenson