Patents Assigned to ASEP Holding BV
  • Lubricator
    Patent number: 6755244
    Abstract: A lubricator (10) includes a tubular body (12) through which passes a support member such as coil tubing or wireline, and an elongate slot (18) for inspection of or access to the support. A sleeve (20) mounted on the body (12) is movable between first and second positions to close or open the port (18). The sleeve (20) is movable by means of a pair of pistons and cylinders (22, 23, 24, 25). O-ring seals (28, 29) are provided on the body (12) above and below the slot (18).
    Type: Grant
    Filed: April 20, 2001
    Date of Patent: June 29, 2004
    Assignee: ASEP Holding BV
    Inventor: Sietse Jelle Koopmans