Patents by Inventor Rodolf C. Pessier

Rodolf 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).

  • Publication number: 20130180782
    Abstract: A reaming bit designed to operate with low torque fluctuation when driven with a turbine at speeds in the order of 300-600 RPM and above features a profile that is arcuate from the gauge dimension to the nose area or alternatively has a blunt straight taper section but with a ratio of profile length (PL) to bit size (BS) of under 0.75. The blades extend into a concave cone and the cutting structure continues along the blades towards the center. The blades have a step near the gauge section to increase the exposure of the blade cutting structure. An array of protrusions are disposed parallel to and behind the cutting structure to increase high speed stability and adjacent the blade step transition to protect outer casing on run in.
    Type: Application
    Filed: January 12, 2012
    Publication date: July 18, 2013
    Applicant: BAKER HUGHES INCORPORATED
    Inventors: Silvino M. Ersan, Anthony Phillips, Maurilio V. Solano, Rodolf C. Pessier, Thorsten Schwefe