Patents by Inventor Ron Robichaux

Ron Robichaux 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).

  • Pre-made up side entry sub apparatus and method
    Patent number: 7841413
    Abstract: For use with a top drive power unit supported for connection with a well string in a well bore to selectively impart longitudinal and/or rotational movement to the well string, a feeder for supplying a pumpable substance such as cement and the like from an external supply source to the interior of the well string in the well bore without first discharging it through the top drive power unit including a body having flow passages for communicating the pumpable substance from an external source to discharge through the sub and into the interior of the well string below the top drive power unit, and a brace which reduces and/or eliminates the transfer of forces from the chicksan line to the valve and inlet of the side entry sub.
    Type: Grant
    Filed: February 3, 2009
    Date of Patent: November 30, 2010
    Assignee: Mako Rentals, Inc.
    Inventors: Terry P. Robichaux, Ron Robichaux, Kenneth G. Caillouet