Patents by Inventor Andrew Jerome Strittmatter

Andrew Jerome Strittmatter 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).

  • Drilling assembly with high-speed motor gear system
    Patent number: 9631430
    Abstract: Drill string assemblies, bottom hole assemblies (BHAs), and powertrains for a BHA in a drill string are presented herein. A BHA for use in a drill string to drill boreholes in an earth formation is disclosed. The BHA includes a housing, a drill bit rotatably coupled to the housing, and a fluidly driven motor assembly, such as a positive displacement motor (PDM). The PDM assembly includes a drive shaft to output rotational drive forces generated by the PDM. Also included is a differential gear set with a first gear member coupled to the drive shaft, a second gear member intermeshing the first gear member with the housing, and a third gear member couple to the drill bit. The differential gear set transmits the rotational drive forces from the drive shaft to the drill bit and rotates the drill bit at a speed greater than the speed of the PDM assembly.
    Type: Grant
    Filed: April 19, 2012
    Date of Patent: April 25, 2017
    Assignee: Halliburton Energy Services, Inc.
    Inventor: Andrew Jerome Strittmatter
  • DRILLING ASSEMBLY WITH HIGH-SPEED MOTOR GEAR SYSTEM
    Publication number: 20150075871
    Abstract: Drill string assemblies, bottom hole assemblies (BHAs), and powertrains for a BHA in a drill string are presented herein. A BHA for use in a drill string to drill boreholes in an earth formation is disclosed. The BHA includes a housing, a drill bit rotatably coupled to the housing, and a fluidly driven motor assembly, such as a positive displacement motor (PDM). The PDM assembly includes a drive shaft to output rotational drive forces generated by the PDM. Also included is a differential gear set with a first gear member coupled to the drive shaft, a second gear member intermeshing the first gear member with the housing, and a third gear member couple to the drill bit. The differential gear set transmits the rotational drive forces from the drive shaft to the drill bit and rotates the drill bit at a speed greater than the speed of the PDM assembly.
    Type: Application
    Filed: April 19, 2012
    Publication date: March 19, 2015
    Applicant: HALLIBURTON ENERGY SERVICES INC.
    Inventor: Andrew Jerome Strittmatter