Abstract: A transducer, a method and a coding pattern for determining a kinematic measurable variable are disclosed. A transducer comprises a first device part which is moveable in or through a corresponding device for oil or natural gas production and a second device part which is stationary relative to said first device part. To detect both the directions of movement and the respective position in a simple constructional and inexpensive way without the need for return movement up to ends of the range of movement, the first and/or second device part comprises a coding pattern which is changing along a direction of movement and of which position-specific patterns can be scanned by a scanning means which is arranged on the respective other device part. By scanning such a specific coding pattern during mutual relative movement of said objects or device parts a corresponding scanning signal can then be converted by an evaluation unit into a kinematic measurable variable.

Abstract: A driving device for adjusting an activating element of a throttle, of a valve, of a connecting device, of a metering device or the like in particular in the field of oil and gas exploration with at least one rotary gear movably connected to the activating element and a gear arranged between the rotary gear and at least one motor. To improve such a drive device in that the structure is simple and compact and efficiency is increased wherein simultaneously high axial forces are avoided and only a small number of assembly parts are necessary, the gear unit comprises a reduction gear assigned to the rotary gear in particular the so called harmonic drive gear, and a spare gear assigned to the motor which is in particular self locking.

Abstract: Metering device in particular for metering an additive in the field of oil exploration with a metering element adjustable by an adjusting means. To improve such a metering device in that already with minimal movement of the adjusting means in a constructive simple way a particular amount of additive is added to raw material and also to quickly interrupt the metering, the metering element comprises a metering gap and a valve means arranged behind the metering gap downstream in fluids moving direction.

Abstract: Pump device for hydraulically activating a valve in particular used for oil and gas exploration wherein such a valve may be a safety valve assigned to a riser or a tree, said pump device including a piston cylinder unit from which pressurized hydraulic fluid can be pumped in direction to the valve. To improve such a pump device so that the pressure of the hydraulic fluid is produced in particular at the corresponding site and near to the valve and is safe and constructed in a simple way an electrical drive means is movably connected to a piston of the piston cylinder unit for alternating movement in axial direction of the piston within the cylinder.

Abstract: The invention relates to a valve system (1) with at least one valve body (2) and a longitudinal slide (3) slidably dispsoed therein which establishes or disrupts a connection between a feed line (4) and at least one inlet (5, 6) or outlet (7, 8) in the valve body 92). The valve system further comprises an electrochemically driven actuator (9) that displaces the longitudinal slide. The aim of the invention is to improve the valve system by simplifying the design of the valve body and the longitudinal slide and to provide a secure and reproducible connection between the inlet/outlet and the feed line in order to feed a corresponding actuating device with a hydraulic fluid. To this end, the longitudinal slide (30 has a longitudinal bore (10) connected to the feed line (4), which can be linked with the inlet (5, 6) or outlet (7, 8) via at least one connecting line (11, 12) that substantially extends radially outward from the longitudinal bore by displacing the longitudinal slide (3) by means of the actuator (9).

Abstract: The invention relates to a blowout valve assembly (blowout preventer (BOP)) comprising a connecting channel, which can be closed by at least one closing device, whereby the closing device can be transversally displaced with regard to the connecting channel by means of a drive device. The aim of the invention is to further improve a blowout valve assembly of this type in order to enable this assembly to be precisely and easily actuated by remote control and while, at the same time, reliably preventing an unintentional opening of the closing device. To this end, the drive device comprises at least two electric motors, which can be operated individually or in a synchronized manner, and comprises a transmission device having at least one irreversible transmission unit. In order to displace the closing device, said transmission unit is drive-connected to both electric motors.

Abstract: The invention relates to an actuating device for regulating a control mechanism which is subject to a force against the direction of regulation. Said actuating device comprises a drive device which has a drive shaft and is connected in a moveable manner to a rotating spindle, by which means an actuating element can be axially displaced in the direction of regulation, in a housing receiving the device. The aim of the invention is to improve one such actuating device in such a way that actuation of the control mechanism is guaranteed in a constructively simple and cost-effective manner. In order to achieve this, the drive device comprises at least two electric motors which can respectively be actuated and controlled for the rotation of the drive shaft.

Abstract: The invention relates to a rotating regulating device, especially for a valve comprising a pivotable or rotatable valve body. Said device comprises at least one actuating device for rotating a regulating element which can be connected to the valve body in a moveable manner. The aim of the invention is to improve one such rotating regulating device in such a way that in its precise and reproducible, and can be especially automatically actuated. In order to achieve this, the regulating element is a rotating collar which is rotationally positioned in relation to a bearing collar, and the actuating device comprises at least one mechanism which converts a linear movement into a rotational movement.

Abstract: A rotating regulating device for the rotation and/or linear displacement of an actuating element of a valve, throttle, blowout preventer or similar, in particular in the field of gas or oil supply, exhibits a spindle drive and a drive train rotationally driving the spindle drive, the said drive train exhibiting at least one reduction gear unit and a drive device connected to it for movement.

Abstract: A throttle device comprises a device housing with an inlet and an outlet and a throttle element arranged in a connecting duct connecting the inlet and the outlet, said throttle element comprising at least two throttle components to be adjusted relative to one another and by the relative position of which an opening surface of the throttle element is determined, at least the first throttle component being actively connected with a drive means for an adjustment relative to the second throttle component.

Abstract: A regulating device for the linear regulation of an actuating element is connected for movement to a ball spindle drive for the conversion of a rotational movement into a linear movement. The rotational movement can be transferred to the spindle drive from at least one motor via a gear unit. The gear unit exhibits a self-locking, helically toothed spur-wheel gear, which is formed as a double helical gear with at least one first and second spiral-toothed gearwheel. In each case at least one motor is arranged at both ends of the ball spindle drive and each motor is connected for movement with a second spiral-toothed gearwheel.

Abstract: A connecting mechanism for two parts, which are at least partially insertable into one another, presents a cam-operated component, which runs on bearings and which is adjustable between a passive and an active position, on the one part, for shifting a number of contact elements between a withdrawal and a contact position, whereby the contact elements, when in the contact position, mesh in a retaining indentation on the other part, and a driving device for the adjustment of the cam-operated component between the active and passive positions. In order to ensure a secure and stable connection of these parts, using simple design means without additional pre-stressing or restraining devices, even when the parts are only partially inserted into one another, the contact elements are arranged in two or more levels essentially parallel to the insertion direction of the two parts and the cam-operated component for shifting the contact elements between the withdrawal and contact positions is allocated to each level.

Abstract: Isolating device, in particular for an injection valve with a turning spindle, rotatably mounted in a device housing, actively connected to a drive device, for the variable displacement of an operating element for an isolation stop valve, connected to the turning spindle, by means of a gearbox unit. The aim of the invention is to improve said isolating device such that the above may be operated in a simple and controllable manner, whereby the control of the isolating device may be carried out from a remote position and in a secure manner. Said aim is achieved, whereby the drive device comprises at least two individually or synchronously operable electric motors and the gearbox unit comprises at least one in particular self-locking drive unit, said drive unit being connected to both electric motors for turning the turning spindle.

Abstract: A transducer, a method and a coding pattern for determining a kinematic measurable variable are disclosed. A transducer comprises a first device part which is moveable in or through a corresponding device for oil or natural gas production and a second device part which is stationary relative to said first device part. To detect both the directions of movement and the respective position in a simple constructional and inexpensive way without the need for return movement up to ends of the range of movement, the first and/or second device part comprises a coding pattern which is changing along a direction of movement and of which position-specific patterns can be scanned by a scanning means which is arranged on the respective other device part. By scanning such a specific coding pattern during mutual relative movement of said objects or device parts a corresponding scanning signal can then be converted by an evaluation unit into a kinematic measurable variable.

Abstract: A drive device serves for adjusting an operating element for a valve, a throttle, a blow-out preventor or the like, in particular in the field of gas and oil production, the operating element being actively connected to at least one driving motor via a drive train, and at least one transmission changing unit being arranged in the drive train for converting a revolution of the driving motor into a revolution of the operating element and/or a revolution/linear motion converter being arranged for converting the revolution of the driving motor into a linear motion of the operating element.

Abstract: A connection device for connecting a tubular member to another member comprises a clamp ring, which is arranged in an inner bore of an outer housing, and includes a plurality of clamping fingers which are deflectable essentially in radial direction relative to the inner bore and a deflecting bushing which is displaceable by at least one driving means in axial direction of the inner bore between a stand-by position and a deflecting position. The deflecting bushing in its deflecting position deflects the clamping fingers radially inwardly. The driving means comprises a rotatable, axially not displaceable spindle along which the deflecting bushing is movable.

Abstract: The invention relates to a control and supply system for electrical devices, comprising at least one voltage supply and control device above sea level, a subsea cable connecting said voltage supply and control device with the electrical devices, and a control and actuating device which is associated essentially in situ with the electrical devices. The aim of the invention is to improve one such control and supply system in such a way that supplies are possible over larger distances, using fewer means, obtaining higher efficiency and making better use of the system.

Abstract: A displacement measuring device for measuring a path that has been covered by a moving object that can be displaced in a direction has at least one first component that is allocated to the moveable object and a second, stationary component. The components are interlinked for the purpose of converting a movement and/or displacement of the moving object into an electrical signal. The displacement measuring device also has an evaluation device for converting the electrical signal into movement and/or position information. The air of the invention is to ensure that the displacement measuring device has a high degree of accuracy, is not susceptible to wear, is resistant to vibration, shocks or corrosion and is economical to use in almost all media without any special sealing measures as well as in any pressure range.

Abstract: An actuator system for shifting a control device that is pressure-loaded in the direction opposite the shift direction. The actuator system comprises an actuator element capable of being axially moved in the shift direction within a system enclosure by a rotating spindle of an advance mechanism. The rotating spindle is connected to a rotating sleeve that is pivot-mounted in the system enclosure and surrounds the rotating spindle. The rotating sleeve is locked in position in the direction opposite the direction of advance rotation of the rotating spindle by a volute spring. The volute spring is associated with an emergency release unit for resetting the actuator element against the shift direction. The emergency release unit comprises a tensioning sleeve for the volute spring. The tensioning sleeve rotates between a tensioned and a relaxed position and is pressure-loaded in the direction of its relaxed position. The volute spring is releasably retained in the tensioning sleeve's tensioned position.

Abstract: A displacement measuring device measures a path of a moving object that can be displaced in a direction has at least one first component that is allocated to the moveable object and a second, stationary component. The components are interlinked for the purpose of converting a movement and/or displacement of the moving object into an electrical signal. The displacement measuring device also has an evaluating device for converting the electrical signal into movement and/or position information. The displacement measuring device has a high degree of accuracy, is not susceptible to wear, is resistant to vibration, shocks, or corrosion and is economical to use in almost all media. To this end, the first component is a spring element connecting the moving object and the second component is a force-measurement device which releases an electrical signal corresponding to the force that is exerted on the spring element.