Patents by Inventor WWT INTERNATIONAL, INC.

WWT INTERNATIONAL, INC. 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: 20130199846
    Abstract: A down hole drilling tool for preventing overpressure strain on surface pumping equipment or a down hole drilling motor having a housing and a circulation port and four hydraulic valves positioned on the housing actively working together to affectively open the circulation port to drilling annulus at a high pressure setting and dose the circulation port to annulus at a low pressure setting, the four hydraulic valves include a high pressure setting valve, a low pressure setting valve, a control valve and a fixed setting valve.
    Type: Application
    Filed: February 5, 2013
    Publication date: August 8, 2013
    Applicant: WWT INTERNATIONAL, INC.
    Inventor: WWT INTERNATIONAL, INC.
  • Publication number: 20130113227
    Abstract: A gripper mechanism for a downhole tool is disclosed that includes a linkage mechanism. In operation, an axial force generated by a power section of the gripper expands the linkage mechanism, which applies a radial force to the interior surface of a wellbore or passage. For certain expansion diameters, the expansion force can be primarily transmitted from a roller-ramp interface expanding the linkage. For other expansion diameters, the expansion force can be primarily provided by expansion of the linkage, in which during a first stage the expansion force is primarily provided by a first link and during a second stage the expansion force is primarily provided by a second link. Thus, the gripper can provide a desired expansion force over a large range of expansion diameters.
    Type: Application
    Filed: October 24, 2012
    Publication date: May 9, 2013
    Applicant: WWT INTERNATIONAL, INC.
    Inventor: WWT INTERNATIONAL, INC.