Patents by Inventor Rodney Schapel

Rodney Schapel 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).

  • Rotary fluid-sealing structure using speed-reduction stages
    Patent number: 7464750
    Abstract: The present invention provides for a rotary fluid-sealing structure for a harsh environment which reduces the PV pressure (×velocity) that a sealing system may be exposed through the use of a rotary speed reducing planetary gear system. The system may have multiple stages with the amount of velocity reduction produced by the system being determined by the number of stages and the planetary gear ratios. Several alternatives are presented for the sealing under extreme conditions such as found in the interface between a wash-pipe and a rotary drilling string in a drilling rig.
    Type: Grant
    Filed: January 4, 2007
    Date of Patent: December 16, 2008
    Assignee: Bal Seal Engineering Co., Inc.
    Inventors: Rodney Schapel, John W. Schroeder
  • ROTARY FLUID-SEALING STRUCTURE USING SPEED-REDUCTION STAGES
    Publication number: 20070158112
    Abstract: The present invention provides for a rotary fluid-sealing structure for a harsh environment which reduces the PV pressure (×velocity) that a sealing system may be exposed through the use of a rotary speed reducing planetary gear system. The system may have multiple stages with the amount of velocity reduction produced by the system being determined by the number of stages and the planetary gear ratios. Several alternatives are presented for the sealing under extreme conditions such as found in the interface between a wash-pipe and a rotary drilling string in a drilling rig.
    Type: Application
    Filed: January 4, 2007
    Publication date: July 12, 2007
    Inventors: Rodney Schapel, John W. Schroeder