Patents by Inventor Rolf C. Pessier

Rolf C. Pessier 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).

  • High density row on roller cone bit
    Patent number: 7621345
    Abstract: An earth-boring bit has a high density row on one of its cones. Each cone has a nose area and a gage area with a heel row of teeth at the gage area. One of the cones has a farther intermediate row of teeth and another one of the cones has a closer intermediate row of teeth. The remaining cone has a high density row of teeth, which is located closer to the axis of rotation of the bit than the farther intermediate row and farther from the axis of rotation of the bit than the closer intermediate row. The high density row has a smaller pitch between crests of the teeth than the closer and farther intermediate rows. The smaller pitch provides more teeth in the high density row than in the closer intermediate row and the farther intermediate row.
    Type: Grant
    Filed: April 2, 2007
    Date of Patent: November 24, 2009
    Assignee: Baker Hughes Incorporated
    Inventors: Karlos B. Cepeda, Robert J. Buske, James L. Overstreet, Rolf C. Pessier