Patents by Inventor Marinus van Barneveld

Marinus van Barneveld 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: 4934879
    Abstract: In a cutting tool having a cutting element, the rake angle in the region following the land is approximately 35.degree. and decreases with increasing distance from the land. Beginning at a distance from the land corresponding approximately to the width of the land, a plurality of chip ridges project from the cutting face in the region between the cutting point regions to form a rake angle of about one-half the rake angle of the cutting face and whose frontal face on the side of the cutting edge projects to about the level of the land. The cutting face regions following the cutting face regions disposed between the chip ridges when seen in the chip discharge direction are configured as ramp elevations and are provided with run-up ramps ascending from the cutting face.
    Type: Grant
    Filed: October 5, 1989
    Date of Patent: June 19, 1990
    Assignee: Nederlandse Hardmetaal Fabrieken B.V.
    Inventor: Marinus van Barneveld