Abstract: An electric machine stator has a core of ferromagnetic material, consisting of a plurality of teeth arranged around a longitudinal axis and defining a plurality of slots between them; the stator has, for each tooth, an insulating cap fixed to a longitudinal end of the tooth by means of an interference coupling and provided with front projections facing and spaced apart from one another in a radial direction; the windings, which are made of electrically conductive material, extend in the half-slots arranged on opposite sides of each tooth and around the cap, between said front projections in a radial direction; each half-slot carries at least one sheet of foldable insulating material, which has a C-shaped portion, which is interposed between the first wire portions and the tooth, and at least one flap, which longitudinally projects from said C-shaped portion out of the corresponding half-slot and radially rests on an end portion that is part of one of said front projections.

Abstract: Three-phase stator winding of a rotary electric machine and having: a plurality of coils each of which has two opposite ends; a plurality of first connection bridges, each of which defines a star connection of three coils and constitutes a star centre of the three coils by connecting a first end of each of the three coils to one another; and three second connection bridges which define a parallel connection of the star connections, are each provided with a corresponding pin defining a terminal of the three-phase stator winding towards the outside, and each of which connects a second end of a respective coil of each star connection to one another. Each second connection bridge has a seamless circular shape closed onto itself.

Abstract: An electric machine three-phase stator has a casing and three busbars that carry respective contacts, within and at an axial end of this casing; the contacts are electrically connected to respective outer terminals; the stator is provided with an electrical connector, which is coupled, in a fluid-tight manner, to the same casing and has three connection conductor elements; the outer ends of the three conductor elements define the above-mentioned outer terminals, while the inner ends of the three conductor elements are respectively fixed to the contacts by means of a fixing system; the busbars, the contacts, fixing system, and the inner ends of the three conductor elements are embedded in an encapsulation material.

Abstract: A method for estimating an anomalous pore pressure value at depth level of a first discontinuous interface between a first geological formation and a second geological formation to be drilled by means of a drilling apparatus comprising at least one bit, where said method is implemented by means of a system comprising at least one electro-acoustic transducer (20) mounted with said bit, at least one memory for containing observable data and at least one control processor for processing observable data contained in said at least one memory, where said at least one processor controls transmitting a signal transmitted at a given frequency, said at least one electro-acoustic transducer receives a received signal that said at least one processor records in said at least one memory, comparing it with pre-loaded observable data in said at least one memory and estimating the value of the anomalous pore pressure of the first discontinuous interface.

Abstract: An apparatus for automated contact tasks and a related method are described. The apparatus includes a mechanical interface for connecting the apparatus to a manipulator, a holder for receiving a tool and being movable in relation to the mechanical interface, at least one actuator for positioning the holder in relation to the mechanical interface, a sensor unit that senses the actuator force provided by the at least one actuator, and a control unit that sets the actuator force to a desired minimum force to press the holder against a stop, while there is no contact between the tool and a surface, and detects contact when the holder moves in relation to the mechanical interface in opposition to the direction of the desired minimum force. The control unit further regulates the actuator force according to a pre-programmed contact force time-characteristic, when contact between the tool and the surface has been detected.

Abstract: An unstuck system of stuck drill pipes of a drill string of a drilling apparatus adapted to drilled wells to extract fluids or mud includes a torsion coupling system adapted to disconnect an upper portion from a bottom portion including the stuck drill pipes of the drill string and to transfer a rotation to the unstuck system. The unstuck system includes at least an axial forced vibration generator including at least one axially movable element adapted to generate at least a vibration which is propagated to pipes of a portion free from being stuck, where the induced vibrations fall within a band of induced frequencies near or corresponding to a resonance frequency of the portion free from being stuck.

Abstract: A method for estimating an anomalous pore pressure value at depth level of a first discontinuous interface between a first geological formation and a second geological formation to be drilled by means of a drilling apparatus comprising at least one bit, where said method is implemented by means of a system comprising at least one electro-acoustic transducer (20) mounted with said bit, at least one memory for containing observable data and at least one control processor for processing observable data contained in said at least one memory, where said at least one processor controls transmitting a signal transmitted at a given frequency, said at least one electro-acoustic transducer receives a received signal that said at least one processor records in said at least one memory, comparing it with pre-loaded observable data in said at least one memory and estimating the value of the anomalous pore pressure of the first discontinuous interface.

Abstract: An apparatus for automated contact tasks and a related method are described. The apparatus includes a mechanical interface for connecting the apparatus to a manipulator, a holder for receiving a tool and being movable in relation to the mechanical interface, at least one actuator for positioning the holder in relation to the mechanical interface, a sensor unit that senses the actuator force provided by the at least one actuator, and a control unit that sets the actuator force to a desired minimum force to press the holder against a stop, while there is no contact between the tool and a surface, and detects contact when the holder moves in relation to the mechanical interface in opposition to the direction of the desired minimum force. The control unit further regulates the actuator force according to a pre-programmed contact force time-characteristic, when contact between the tool and the surface has been detected.

Abstract: An apparatus for automated contact tasks and a related method are described. The apparatus includes a mechanical interface for connecting the apparatus to a manipulator, a holder for receiving a tool and being movable in relation to the mechanical interface, at least one actuator for positioning the holder in relation to the mechanical interface, a sensor unit that senses the actuator force provided by the at least one actuator, and a control unit that sets the actuator force to a desired minimum force to press the holder against a stop, while there is no contact between the tool and a surface, and detects contact when the holder moves in relation to the mechanical interface in opposition to the direction of the desired minimum force. The control unit further regulates the actuator force according to a pre-programmed contact force time-characteristic, when contact between the tool and the surface has been detected.

Abstract: The invention relates to a device for training coordinative faculties. The device has at least one movable standing plate; at least one static base plate; at least two connecting elements, the height of which can be modified and which act between the at least one movable standing plate and the at least one static base plate, a user interface; and a control element. The device is designed to specify a sequence of various setpoint positions of the centre of gravity of a user standing on the at least one movable standing plate, each of the setpoint positions being specified for a determined duration, and to continuously measure the actual position of the centre of gravity of the person standing on the moving plate.

Abstract: A safety valve for extraction wells, configured to be installed on a well head and to enclose a tubular material portion inserted inside the well. The tubular material is internally hollow to contain and transport substances extracted from the well. The safety valve includes: a central hole through which the tubular material passes; a blocking system configured to keep the tubular material to be cut fixed with respect to the safety valve; a cutting and closing group configured to cut and close the well under certain operative conditions; and a sealing mechanism configured to effect watertight closing of the well, after the cutting. The cutting and closing group includes a hole saw housed in a respective chamber of the cutting and closing group, rotated by a motorized actuator, and configured to move in a controlled mode along a substantially orthogonal direction with respect to a development direction of the well.

Abstract: A roller hemming apparatus for robot-supported roller hemming with a manipulator, as well as with a roller hemming apparatus, is described. The apparatus includes a frame, a first roller and a second roller which, when in operation, contact two opposite sides of a workpiece, and at least one first actuator mechanically coupled to the frame and to at least one of the first and the second rollers and controlled so that opposing process forces that are applied over the first and the second rollers and that lie approximately along one effective line of force are applied to the workpiece at opposite sides.

Abstract: An apparatus includes a manipulator, a pneumatic actuator and a robot control. The pneumatic actuator is coupled to the manipulator such that the pneumatic actuator is arranged between the manipulator and an object to be positioned. The robot control is configured: to control the pneumatic actuator such that an actuator force of the pneumatic actuator approximately compensates a weight force of the object; and to monitor the actuator position of the pneumatic actuator and initiate safety measures when the actuator position exceeds a predefined value. Methods of operating the manipulator and the pneumatic actuator are also described.

Abstract: An artificial finger for prosthetics and gripping technology, with a base, a first finger member mounted on the base in articulated manner, at least one secondary member mounted on the first finger member in articulated manner, and a drive for adjusting the secondary member relative to the first finger member and the first finger member relative to the base. At least one reset element is provided for resetting the first finger member and the secondary member, and the first finger member is acted upon with a resetting force which differs from the secondary member.

Abstract: An apparatus for automated contact tasks and a related method are described. The apparatus includes a mechanical interface for connecting the apparatus to a manipulator, a holder for receiving a tool and being movable in relation to the mechanical interface, at least one actuator for positioning the holder in relation to the mechanical interface, a sensor unit that senses the actuator force provided by the at least one actuator, and a control unit that sets the actuator force to a desired minimum force to press the holder against a stop, while there is no contact between the tool and a surface, and detects contact when the holder moves in relation to the mechanical interface in opposition to the direction of the desired minimum force. The control unit further regulates the actuator force according to a pre-programmed contact force time-characteristic, when contact between the tool and the surface has been detected.

Abstract: The invention relates to a device for training coordinative faculties. The device has at least one movable standing plate; at least one static base plate; at least two connecting elements, the height of which can be modified and which act between the at least one movable standing plate and the at least one static base plate, a user interface; and a control element. The device is designed to specify a sequence of various setpoint positions of the centre of gravity of a user standing on the at least one movable standing plate, each of the setpoint positions being specified for a determined duration, and to continuously measure the actual position of the centre of gravity of the person standing on the moving plate.

Abstract: An apparatus includes a manipulator, a pneumatic actuator and a robot control. The pneumatic actuator is coupled to the manipulator such that the pneumatic actuator is arranged between the manipulator and an object to be positioned. The robot control is configured: to control the pneumatic actuator such that an actuator force of the pneumatic actuator approximately compensates a weight force of the object; and to monitor the actuator position of the pneumatic actuator and initiate safety measures when the actuator position exceeds a predefined value. Methods of operating the manipulator and the pneumatic actuator are also described.

Abstract: A robot includes a yielding element for mechanically coupling first and second arm segments of a robot arm. A motor moves the second arm segment relative to the first arm segment. A sensor determines a relative position of the first arm segment in relation to the second arm segment and outputs a position sensor signal representing the relative position. A control unit controls the motor in accordance with the position sensor signal such that the first arm segment is moved into a desired relative position in relation to the second arm segment, when no external force is applied to the robot arm, and when an external force is applied to the robot arm, the motor generates a counterforce which depends on the deviation between the actual and desired positions. The control unit has a predetermined time constant so that changes in the external force are substantially absorbed by damping elements.

Abstract: An apparatus for automated contact tasks and a related method are described. The apparatus includes a mechanical interface for connecting the apparatus to a manipulator, a holder for receiving a tool and being movable in relation to the mechanical interface, at least one actuator for positioning the holder in relation to the mechanical interface, a sensor unit that senses the actuator force provided by the at least one actuator, and a control unit that sets the actuator force to a desired minimum force to press the holder against a stop, while there is no contact between the tool and a surface, and detects contact when the holder moves in relation to the mechanical interface in opposition to the direction of the desired minimum force. The control unit further regulates the actuator force according to a pre-programmed contact force time-characteristic, when contact between the tool and the surface has been detected.

Abstract: A device for training coordinative faculties has at least one movable standing plate; at least one static base plate; at least two connecting elements, the height of which can be modified and which act between the at least one movable standing plate and the at least one static base plate, a user interface; and a control element. The device is designed to specify a sequence of various setpoint positions of the center of gravity of a user standing on the at least one movable standing plate, each of the setpoint positions being specified for a determined duration, and to continuously measure the actual position of the center of gravity of the person standing on the moving plate.