Patents by Inventor Kasper Koch

Kasper Koch 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).

  • Making up and breaking out of a tubing string in a well white maintaining continuous circulation
    Patent number: 6581692
    Abstract: An apparatus for making up and breaking out of a tubing string in a well includes a connector (9; 109) for connection to a tubular (1) and a main high pressure conduit (13; 113) communicating with the connector (9; 109) for allowing circulation through a tubular (1) connected thereto. Below that unit a connecting shell (17; 117) bounding a connecting chamber (18) has an upper passage (19) and a lower passage (20), a preventer (23) for separating an upper portion (24) of the connecting chamber (18) from a lower portion (25) thereof, and a back-up high pressure conduit (26) communicating with the connecting chamber (18). A pressure corresponding to the pressure in the upper portion (24) of the connecting chamber (18) is provided in at least one pressure chamber (51; 151) and exerts a force pressing a tubular (1) or the connector (9; 109) into the connecting chamber (18) against forces exerted by pressure in the connecting chamber (18).
    Type: Grant
    Filed: June 25, 2001
    Date of Patent: June 24, 2003
    Inventors: Kasper Koch, Jacob Van Oord, Thomas Walburgis Bakker