Patents by Inventor Carl D. Kowalski

Carl D. Kowalski 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).

  • Intermittently operable rotary chopping apparatus for matted fibrous material
    Patent number: 3971277
    Abstract: Matted fibrous material is fed between a rotatable shaft having a chopping blade mounted thereon and a rubber-covered back-up roll cooperable with the blade. Clutch and brake means enable the blade shaft to be rotated intermittently through one turn to chop off a selected length of material. An upper portion of the back-up roll is above the plane of support of feed and discharge conveyors on opposite sides of the back-up roll, and a cam on the blade shaft compresses the material before it is chopped by the blade.
    Type: Grant
    Filed: June 19, 1975
    Date of Patent: July 27, 1976
    Assignee: Owens-Corning Fiberglas Corporation
    Inventors: Carl D. Kowalski, Lawrence R. Finn, Richard C. Yawberg