Patents by Inventor John Siu Lun Tsang

John Siu Lun Tsang 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).

  • Hammer drill mechanism
    Patent number: 10550641
    Abstract: Various embodiments include methods and apparatus structured to increase efficiencies of a drilling operation. A drilling apparatus can be structured to include a hammer drill to move a hammer to impart impact force to a bit box in conjunction with a rotary drive shaft. The hammer drill can be arranged as a mechanical drive hammer capable of being applied to both fluid drilling and air drilling. Additional apparatus, systems, and methods are disclosed.
    Type: Grant
    Filed: February 6, 2015
    Date of Patent: February 4, 2020
    Assignee: Halliburton Energy Services, Inc.
    Inventor: John Siu Lun Tsang
  • Hammer Drill Mechanism
    Publication number: 20170356248
    Abstract: Various embodiments include methods and apparatus structured to increase efficiencies of a drilling operation. A drilling apparatus can be structured to include a hammer drill to move a hammer to impart impact force to a bit box in conjunction with a rotary drive shaft. The hammer drill can be arranged as a mechanical drive hammer capable of being applied to both fluid drilling and air drilling. Additional apparatus, systems, and methods are disclosed.
    Type: Application
    Filed: February 6, 2015
    Publication date: December 14, 2017
    Applicant: Halliburton Energy Services, Inc.
    Inventor: John Siu Lun Tsang