Patents by Inventor Derrel M. Peck

Derrel M. Peck 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).

  • System of chipper knives and knife stops
    Patent number: 11141877
    Abstract: A disc chipper has thick double-edged chipper blades clamped in rectangular pockets between a knife segment and a knife clamp which are connected to a chipper disc. The blades are precisely positioned for cutting by knife stops selected from a set of knife stops of incremental modular widths. A different width knife stop is used to position the chipper knife blades each time it is sharpened. After each sharpening the knife blade has a selected width which is smaller by a constant incremental value, and it is assembled with a mating knife stop from the set so that the blade edge position remains unchanged.
    Type: Grant
    Filed: September 26, 2019
    Date of Patent: October 12, 2021
    Assignee: VALMET TECHNOLOGIES, INC.
    Inventor: Derrel M. Peck
  • System of Chipper Knives and Knife Stops
    Publication number: 20200353641
    Abstract: A disc chipper has thick double-edged chipper blades clamped in rectangular pockets between a knife segment and a knife clamp which are connected to a chipper disc. The blades are precisely positioned for cutting by knife stops selected from a set of knife stops of incremental modular widths. A different width knife stop is used to position the chipper knife blades each time it is sharpened. After each sharpening the knife blade has a selected width which is smaller by a constant incremental value, and it is assembled with a mating knife stop from the set so that the blade edge position remains unchanged.
    Type: Application
    Filed: September 26, 2019
    Publication date: November 12, 2020
    Applicant: Valmet Technologies, Inc.
    Inventor: Derrel M. Peck