Patents by Inventor Lee J. Boquet

Lee J. Boquet 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).

  • Patent number: 6192981
    Abstract: A coiled tubing hanger assembly for supporting coiled tubing in a well including, as a first element, a mechanically-assisted slip assembly characterized by multiple slip segments inserted in a tapered slip bowl located in the midsection of a coiled tubing head. The conical slips are constrained to move in concert in the tapered throat of the tubing head midsection by means of a slip retainer ring and rest on a rack cylinder slidably positioned in the bore of the midsection beneath the slips. The rack cylinder is typically fitted with lands and grooves that engage a pinion gear attached to a slip-operating mechanism to facilitate manually raising and lowering the rack cylinder and the slips together, causing the slip teeth to selectively engage and disengage the segment of coiled tubing extending through the slips and the bore of the rack cylinder, into the well.
    Type: Grant
    Filed: June 7, 1999
    Date of Patent: February 27, 2001
    Assignee: True Turn Machine, Inc.
    Inventors: Lee J. Boquet, Michael J. Mathias, Sr., Billy M. Deville