Seawell Oil Tools AS Patent applications |
Patent application number | Title | Published |
20110308622 | Sleeve Valve with Permanent End Position - A sleeve valve including a permanent end position and comprising an inner sleeve concentrically disposed within an outer sleeve comprising at least one radially facing outer opening and an operating range defined by an open position in which the inner sleeve does not block the outer opening, and a closed position in which the inner sleeve blocks the outer opening. The inner sleeve is axially displaceable or rotatable within the outer sleeve to provide an operating range in the longitudinal direction or an operating range in the form of an angle. At least one plastically deformable locking area of one the inner or outer sleeve is adapted for being radially deformed into a locking groove of the other sleeve when the inner sleeve is moved outside of the operating range. | 12-22-2011 |
20110168380 | CEMENT HEAD WITH INTERGRATED ENERGY SUPPLY FOR OPERATING VALVES - A cement head used for performing cementing jobs in downhole operations is provided. The cement head includes wireless signaling means, an integrated energy supply, activating means for pneumatic operated valves in cement head, and controller means for controlling said energy supply for activation of at least one valve based on received signals through the wireless signaling means. | 07-14-2011 |
20090314491 | MOTION DETECTOR - A method and an apparatus for activating an event if an object has undergone a pattern of motion with alternating motion and standstill which corresponds to a predetermined sequence of motions, in which all forms of motion are included. | 12-24-2009 |