Patents by Inventor Travis MacDonald

Travis MacDonald 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).

  • Variable Length Fill Up Tool and Valve
    Publication number: 20150300107
    Abstract: A fill up tool has an adjustable length to selectively lengthen the fill up a tool or retract to be positioned completely above the elevator so that elevator movement will not interfere with the fill up tool. The seal is fixed to the tool so that the load caused by the pressurized seal does not have to be balanced by the operating force of the piston. A full open valve is operated when the tool is extended to fill up or take flow back.
    Type: Application
    Filed: April 22, 2014
    Publication date: October 22, 2015
    Applicant: DrawWorks LP
    Inventors: Albert Augustus Mullins, Matthew J. Hickl, Travis MacDonald