Abstract: A powered door latch system for vehicles includes a controller configured to receive data concerning vehicle operating conditions. The door latch system also includes at least one electrically powered door latch having a powered actuator that can be actuated by the controller to unlatch the electrically powered latch. An emergency release is mechanically connected to the electrically powered latch to mechanically release the latch. The system also includes a user communication device such as a display screen that is operably connected to the controller. The user communication device provides a user with information concerning the location and/or operation of the emergency release if a predefined operating condition such as a loss of electrical power has occurred.

Abstract: A dual unlocking hood latch system allows a user to open a hood of the automobile vehicle while staying in the vehicle. The dual unlocking hood latch system includes a base fixed to a main body. The base includes a moving groove portion to guide the movement of a striker. A latch gear, which includes a plurality of locking portions, is pivotably attached to a front side of the base to retain the striker when the striker is entered through the moving groove portion to a locking position. A pawl, pivotably attached to the base, controls the movement of the latch gear by transmitting rotational motion when in contact. And a stopper portion, pivotably attached to the base, is elastically biased to move toward the pawl such that the stopper portion is pushed by the pawl to restrain pivoting movement of the latch gear.

Abstract: An inertial blocking member subassembly being part of a release handle assembly associated with a vehicle door, the inertial blocking member subassembly being activated by an acceleration force associated with an impact event, the release handle assembly having a release handle framework supporting a bell crank assembly and a manually actuatable door handle grip, the door handle grip operatively coupled to the bell crank assembly to unlatch the vehicle door upon manual actuation of the door handle grip. The inertial blocking member subassembly includes a blocking member associated with the release handle assembly framework, movable in at least one of rotation about an axis of rotation and translation along the axis of rotation. The blocking member has a center of gravity which is offset from the axis of rotation.

Abstract: A door opening prevention device in a broadside collision of a vehicle, having a latch assembly which locks and unlocks a door side striker in conjunction with an operation of an outside handle when the outside handle may be operated, may include a balance weight which may be rotatably coupled to a side surface of a claw disposed in the latch assembly, wherein the balance weight may be pivotable downward by inertia in the broadside collision of the vehicle, and a striker locking lever slidably engaged to the side surface of the claw and elastically biased upwards, wherein the striker locking lever may be fitted between the side surface of the claw and the door side striker to jam the claw and the door side striker while being moved in a down direction by contact with the balance weight by the inertia in the broadside collision of the vehicle.

Abstract: An anti-locking device comprising a body with an inverted U-shaped channel wherein a T-shaped rod sits and can move laterally when rotated at certain configurations within the U-shaped channel, such that the T-shaped rod can move from an obstructing configuration and to an non-obstruction configuration, and vice versa. The anti-locking device is preferably attachable to a hinged door and the T-shaped rod is able to move laterally in the body of the anti-locking device. In an obstructing configuration, one end of the T-shaped rod would sit between a door and its corresponding doorframe to keep the door from closing, and in a non-obstructing configuration, the T-shaped rod would not sit between the door and the doorframe, allowing the door to close.

Abstract: A door hinge has a first hinge part, a hinge bracket connected to the first hinge part to be pivotable about a rotational axis and a second hinge part connected to the hinge bracket The hinge bracket has an angled mounting section that is forcibly guided on a receiving block a first direction x and is lockable in place. The receiving block is adjustable in a second direction y in the second hinge part 4.

Abstract: The invention provides a door construction comprising a door panel and at least one pivot hinge for rotatably suspending the door panel in a door opening. The at least one pivot hinge is integrated into the door panel at the top side or at the bottom side of the door panel. The door panel comprises a guide profile, extending along substantially the entire side of the door panel having the at least one pivot hinge. The at least one pivot hinge is slidably arranged in the guide profile, and the at least one pivot hinge is provided with attachment means for releasably attaching the at least one pivot hinge to the guide profile.

Abstract: A door closer includes: a cylinder secured on a door frame and having a cylinder head formed on a proximal end of the cylinder; a main value and a check valve respectively formed on the cylinder head to control the air in-and-out volume through the valves for lightly opening the door; a piston secured to a rod member slidably reciprocating within the cylinder with the rod member secured to a door; a restoring spring secured between the cylinder head and the rod member for normally resiliently restoring the rod member and the piston towards the cylinder head in order to close the door to the door frame normally as restored by the restoring spring; and at least a buffer member secured between the cylinder head and the piston so as to dampen the inertia force of the closing door to eliminate the noise or damage thus possibly caused.

Abstract: A window glass gripping device which is assembled on a rail with a linking element includes: a glass gripper, slidably connected on the rail; a limiter, secured on the linking element; and an adjusting bolt, screwed to the glass gripper, having a limited portion. The limiter is assembled to correspond to the limited portion for limiting a position of the adjusting bolt.

Abstract: A smart opening system is provided. The smart opening system includes a vehicle defining an aperture, a door coupled to the vehicle to assume a first position at which the aperture is closed and multiple second positions at which the aperture is open and to move between the first and second positions, a sensor disposed to sense obstructions surrounding the vehicle and a processing element coupled to the sensor and configured to determine whether any of the obstructions are within a range of motion of the door.

Abstract: An apparatus for opening and closing a deck lid of a vehicle body includes a jack-screw type drive unit having two elongated relatively rotatable drive elements which are threadably engaged for bi-directional displacement. An electric motor engages the rotatable drive element. A first mounting device pivotally connects the rotatable drive element to a relatively fixed point on the vehicle. A second mounting device pivotally connects the non-rotatable drive element to the deck lid, or vice versa. The motor is energized to affect bi-directional control of the drive unit while enabling low back-drive effort. A concentric spring counters loading due to the weight of the deck lid.

Abstract: The invention relates to a braking mechanism (10) for a movable door wing (1) with an electric motor (14) operating as a generator, the at least one drive shaft of which can be rotated by a movement of the door wing (1), and at the terminals thereof, a movement-dependent output voltage is produced, which is applied to an evaluation and control unit (20), and a stop spring (12) which damps a manual opening movement of the door wing (1) between a predetermined opening angle and a maximum opening angle with a constant first damping, and a corresponding door with a braking mechanism of this type. In accordance with to the invention, the evaluation and control unit (20) performs a pulse width modulation (PWM) of the motor current cooperating with the output voltage and establishes an effective sequence of braking force, which generates a variable second damping of the opening movement of the door wing (1), so that the door wing (1), when released, stops upon reaching the maximum opening angle.

Abstract: The present invention relates to a drive arrangement, comprising a motor drive shaft, which makes the drive force of a motor available, an output shaft, via which the drive arrangement outputs and accumulates a rotational force, a coupling, which is designed to transmit a rotational force from the motor drive shaft to the output shaft and from the output shaft to the motor drive shaft, and a braking arrangement, which counteracts a rotational movement of the output shaft with a braking force.

Abstract: An actuator includes an actuator main body, an operating shaft attached to a tail gate, a vehicle body-side socket that fixes the actuator main body to an attachment surface of a bracket, and a guide part installed between the attachment surface of the bracket and the vehicle body-side socket, wherein the vehicle body-side socket is fixed to the bracket via the guide part, and the guide part restricts rotation of the vehicle body-side socket about an arbitrary straight line crossing a line in a direction normal to the attachment surface.

Abstract: An automated system is provided for closing a closure of a motor vehicle. That automated system includes a plurality of closures, a plurality of closure modules for opening and closing that plurality of closures and a control module. The control module is configured to monitor a transmission state of the motor vehicle and an open/close state of the plurality of closures and then close an open closure of the plurality of closures when the transmission is shifted out of park and the open closure is detected. A related method is also provided.

Abstract: A safe that may be secured to a fixed object while incorporated in a larger bag is provided. Also provided is a kit including a safe that can be installed in an existing bag. In use, the bag and safe are secured together and both may be simultaneously locked to a fixed object by a securing mechanism such as a loop cable with a locking mechanism. The securing mechanism enters both the bag and the safe through apertures which may be reinforced. The securing mechanism may be detached from the safe by detaching removable fasteners designed to secure the mechanism within the safe. The interior of the bag may also comprise a housing or a mounting mechanism to secure the safe within the bag.

Abstract: Multi-piece, flexible, sill pan assemblies and methods of installation are disclosed. Method of installation of a sill pan assembly for pocket door systems such as single- and double-door versions as well as multi-panel pocket doors. The sill pan assembly has a first flexible end dam member, a second flexible end dam member, a flexible outside corner member, and a flexible insert. Methods of installation of a sill pan assembly for a double-pocket door. The sill pan assembly having a first flexible end dam member, a second flexible end dam member, a first flexible outside corner member, a second flexible outside corner member, and a flexible insert.

Abstract: A metal door frame for a door opening comprising at least one first door frame segment for upper or side portions of the door opening, the at least one first door frame segment having a first molding flange, a first jamb face adjacent to the molding flange, and a first stop flange adjacent to the jamb face. The metal door frame includes at least one second door frame segment for upper and side portions of the door opening, the at least one second door frame segment having a second molding flange, a second jamb face adjacent to the molding flange, a second stop flange adjacent to the jamb face, a second stop face adjacent to the stop flange, and a third stop flange adjacent to the stop face. The metal door frame includes a thermally insulative layer between the first door frame segment and the second door frame segment.

Abstract: A modular wall system with an integrated pocket door includes a frame defining a wall plane and a doorway. The system also includes one or more aesthetic panels connected to at least a portion of the frame so as to cover at least a portion of the wall frame. Additionally, the system includes a support member extending above the doorway and across at least a portion of the wall plane. The support member includes an integrated track that is accessible through one or more access windows integrated into the support member. The system includes a slideable pocket door integrated into the track such that when closed, the pocket door blocks the doorway, and when open, the pocket door is at least partially enclosed behind the one or more aesthetic panels.

Abstract: The present invention relates generally to a universal strut for doors and window elements. More particularly, the invention encompasses a universal strut that mates with a first formed member, and a second formed member, and which assembly is used as windows, doors, window frames, and door frames. The invention also provides a method of using the inventive universal strut for applications that require different widths and lengths for a production or customized window, door, window frame, or door frame. The universal strut can also be used as a thermal barrier between the first formed member, and the second formed member. Preferably, the universal strut is made from a non-metallic or thermal barrier material, while the first formed substrate, and the second formed substrate are preferably made from a metallic material. The universal strut allows for the formation of various configurations for the shapes of window and/or door elements.

Abstract: Fire can spread extremely quickly within structures. To prevent this, fire doors or fire shutters are usually installed. However, security aspects of such doors or shutters are not renown. An attempt to alleviate this problem may be provided by an insulated fire panel shutter including a guide, adapted to receive a shutter and having one or more retractable members moveable between a retracted and extended position; a shutter, moveable between an open and closed position and formed from a plurality of panels each of which is moveable between a stowed and deployed position; their arrangement being such that as the guide receives the shutter during shutter closure, the panel arrangement alters from a stowed side by side relationship to a deployed stacked end to end relationship.

Abstract: A fire rated door utilizing a pair of frame members each having cases forming opposing open chambers. The open chambers are filled with fire resistant material and include structural plates that do not contact the cases. Holders attach to the cases support a fire resistant glazing unit. The fire rated door may be clad around the pair of frame members.

Abstract: Embodiments of motorized window coverings are described herein that may include a covering portion, a top portion, a bottom portion, and wiring. The top portion may comprise a deploying mechanism and a motor. The deploying portion may deploy the covering portion, and the covering portion may be directly connected to the deploying mechanism. The motor may operate the deploying mechanism. The bottom portion may be directly connected to the covering portion at an opposite end of the motorized window covering from the top portion. One or more batteries may be integrated into the covering portion. The batteries may power the motor. Wiring may be disposed in the covering portion. The wiring may electrically couple the motor to the one or more batteries. In some embodiments, the motorized window covering may include a roller shade and/or a venetian blind.

Abstract: A blind body actuator used in a cordless window blind assembly is provided to include a casing, a winding mechanism, two guide units and two lift cords. The winding mechanism includes two winding wheels and a volute spring connected to the winding wheels. Each of the winding wheels is meshed with one respective lift-cord wheel so that the lift-cord wheels can be driven by the winding mechanism to rotate synchronously. The guide units are respectively disposed adjacent to one respective lift-cord wheel, each including a first cylinder roller. Each of the lift cords is wound around the first cylinder roller of one respective guide unit, having one end thereof connected to one respective lift-cord wheel and an opposite end thereof extended out of the casing.

Abstract: A cord winding mechanism for a blind cord with a first end fixed to a window blind includes a base, a cord winder rotatably mounted to the base, a cord guiding assembly mounted to the base, and an elastic press member mounted to the base. The cord winder defines an annular slot to wind the blind cord layer by layer. The cord guiding assembly is abutted against an unwound portion of the blind cord between the cord winder and the window blind. A second end of the blind cord is fixed to an end of the cord winder in the slot. The press member is elastically abutted against a portion of the blind cord just separate from the cord winder.

Abstract: The present invention relates to a track for connecting a pair of flexible membrane barrier segments in a retractable wall system. The track may include an elongated member having a first longitudinal axis and a first cross-sectional profile perpendicular to the first longitudinal axis. The track may include a base surface and a latching surface. The latching surface may be spaced from the base surface and may include a first groove aligned with the first longitudinal axis, a second groove spaced from the first groove, a projecting element located between the first groove and the second groove, the projecting element being aligned with the first longitudinal axis. The latching surface may further include a hooking element spaced from the projecting element, and a guide surface disposed between the projecting element and the hooking element.

Abstract: Methods and apparatus to control architectural opening covering assemblies are disclosed herein. An architectural covering assembly including an architectural covering; a tube to which the architectural covering is coupled; a manual controller operatively coupled to the tube to rotate the tube; a motor including a motor housing and a motor shaft; and a clutch assembly including a clutch and a clutch housing in which the clutch is disposed, the motor shaft coupled to the clutch and the clutch coupled to the manual controller to hold the motor shaft substantially stationary when the architectural covering is moved under an influence of the motor to cause the motor housing to rotate with the clutch housing and the tube.

Abstract: A drilling control and information system comprising: a rig site network (102) including a drilling equipment controller (112) and a drilling parameter sensor (116); a downhole sensor (118) communicatively coupled to the rig site network; a data center (104) communicatively coupled to the rig site network; a remote access site (106) communicatively coupled to the data center; and a pressure management application (300) communicatively coupled to the rig site network, wherein the pressure management application receives pressure data from the drilling parameter sensor and the downhole sensor and issues an operating instruction to the drilling equipment controller.

Abstract: A method of operating a drill string comprises independently modifying a rotary speed of a downhole portion of the drill string relative to other downhole portions of the drill string, each of the portions comprising a plurality of drill pipe sections. The modified-speed portion of the drill string can comprise a downhole end portion of the drill string extending between a downhole drill string end and a curved portion of the borehole in which the drill string is located. The downhole end portion can be rotated at an increased speed relative to a portion of the drill string coincident with the curved portion of the borehole. Independent speed modification can be effected by incorporating one or more transmission modifier devices in the drill string, the transmission modifier device being switchable between a disengaged mode in which it transfers unmodified drill string torque and rotation, and an engaged mode in which it transmits torque and rotation along the drill string at a modified speed and torque.

Abstract: A mobile drilling rig is mountable on a separate drive chassis having running gear. A separate main frame may be having elongated members, each having outer end extensions and vertically adjustable support posts thereon. A slide chassis is slidable on one end of the main frame mounting a power plant, and a mast pivot support pivotally mounted on the other end of the main frame. An elongated mast has a drill head movable thereon, with the mast pivot support slidably mounting the mast thereon so that the mast may be pivoted between vertical and horizontal orientations thereon while being movable in lengthwise directions. The slide chassis, the mast and drill head are moved to positions improving the stability of the rig when traversing grades in an up or down hill direction.

Abstract: Utilities (e.g., apparatuses, systems, methods, etc.) for use in converting a container (e.g., crate, box, packaging) within which a post hole digger (e.g., unassembled) is disposed into a stand useful for facilitating connection of the post hole digger to a tractor or the like.

Abstract: A method for sharing information between components of a subterranean drill string. The method can include receiving, at a controller, data representative of a detected rotational characteristic of a drill string sensed at a first location on the drill string. Further, the method includes calculating, at the controller, a rotational characteristic corresponding to a second location on the drill string based, at least in part, on the detected data, and transmitting data representative of the calculated rotational characteristic to the second location.

Abstract: A drilling apparatus including a tubular bearing housing, a tilted sleeve removably connected with the bearing housing, and a driveshaft. The bearing housing has a housing axis, a housing bore, and a housing bore axis. The housing bore axis is parallel with the housing axis. The tilted sleeve has a sleeve axis, a sleeve bore, and a sleeve bore axis. The tilted sleeve is connected with the bearing housing and is positioned within the housing bore. The sleeve axis is parallel with the housing bore axis and the sleeve bore axis is oblique to the sleeve axis. The driveshaft is rotatably supported within the sleeve bore. The driveshaft has a driveshaft axis. The driveshaft axis is parallel with the sleeve bore axis.

Abstract: A method of forming a cutting element comprises disposing diamond particles in a container and disposing a metal powder on a side of the diamond particles. The diamond particles and the metal powder are sintered so as to form a polycrystalline diamond material and a low-carbon steel material comprising less than 0.02 weight percent carbon and comprising an intermetallic precipitate on a side of the polycrystalline diamond material. Related cutting elements and earth-boring tools are also disclosed.

Abstract: A self-adjusting earth-boring tool includes a body carrying cutting elements and an actuation device disposed at least partially within the body. The actuation device may include a first fluid chamber, a second fluid chamber, a first reciprocating member, and a second reciprocating member. The first and second reciprocating members may divide portions of the first fluid chamber from portions of the second fluid chamber. A connection member may be attached to both of the first and second reciprocating members and may have a drilling element removably coupled thereto. A first fluid flow path may extend from the second fluid chamber to the first fluid chamber. A second fluid flow path may extend from the first fluid chamber to the second fluid chamber.

Abstract: An orientation system includes an upper sub, a lower sub, and an orienting sleeve for rotationally aligning the upper sub with a rotational position of the lower sub. The orienting sleeve includes a keyed upper surface configured to engage a keyed lower surface of the upper surface, and an inner faceted portion configured to engage an outer faceted portion of the lower sub. The orientation system further includes an upper sleeve configured for attachment to the orienting sleeve and the upper sub, and a lower sleeve configured for attachment to the orienting sleeve and the lower sub. The upper and lower sleeves secure the upper sub to the lower sub.

Abstract: A axial retention connection for a downhole tool is disclosed. The connection includes a drill string component including a socket having a plurality of walls and a top surface. The connection additionally includes a downhole tool coupled to the socket, the downhole tool including a male-type connector having an outer perimeter and a top surface. The connection further includes a seal between the drill string component and the downhole tool. The connection further includes a chamber formed by the plurality of walls and the top surface of the socket and the top surface of the male-type connector; and a fluid filling the chamber.

Abstract: An on-off tool for latching a sucker rod to a plunger rod has a housing, a pawl, guide pines, and a key. One end of the housing is connected to the sucker rod, and an interior of the housing defines a key slot terminating at a seat inside the interior. The pawl is disposed in the interior of the housing and is biased longitudinally preferably by disc springs. Bearings in the form of elongate pins are engaged between the pawl and the housing and dispose longitudinally in slots to guiding longitudinal movement of the pawl in the interior and preventing rotation of the pawl. The key has a head at its distal end that is passable through the key slot, interlockable with the pawl, and seatable on the seat. The key's head preferably defines a waist thereabout to provide the head with greater load bearing surface to engage the housing's seat.

Abstract: What is provided is a method and apparatus wherein a rotating and reciprocating swivel can be detachably connected to an annular blowout preventer thereby separating the drilling fluid or mud into upper and lower sections with the mandrel of the swivel being comprised of double box end joints and using double pin end subs to connect a plurality of such mandrel joints together.

Abstract: A method of running a tubing hanger and upper completion using a passively motion compensated tubing hanger running tool assembly in a subsea well located at a sea floor is described. Methods include using a tubing hanger running tool assembly comprising a tubing hanger running tool and a pressure containing slip joint to provide passive heave compensation.

Abstract: A threaded coupling for joining tubulars for oil and gas field operations forming connected tubulars. The threaded coupling has a body with an outer surface, an inner surface and a central axis, a first tapered edge, a second tapered, and a first coupling bearing face and second coupling bearing faces for supporting load, weight, or both on the connected tubulars. As the inner surface of the body is swaged onto each tubular, the inner surface of the body deflects away from the central axis, providing a plurality of bands of high contact pressure for each metal to metal seal between the inner surface of the body and each connected tubular to sustain seal pressures between the threaded coupling.

Abstract: A plug and play connection system for a managed pressure drilling system includes a connection hub flange disposed around an outer surface of an outer barrel of a telescopic joint that includes a plurality of pass-through ports and a plurality of connection hub flange ports. A connection hub ring is removably disposed around an outer surface of the connection hub flange. The connection hub ring includes a plurality of dogs configured to removably attach the connection hub ring to the outer surface of the connection hub flange and a plurality of stab-in connectors disposed around an outer surface of the connection hub ring. A ported bottom flange is connected to a bottom distal end of the outer barrel of the telescopic joint and includes a plurality of bottom flange ports. A plurality of conduits connect the plurality of connection hub flange ports to the plurality of bottom flange ports.

Abstract: An isolation valve for use in a wellbore includes: a housing; a piston longitudinally movable relative to the housing; a flapper carried by the piston for operation between an open position and a closed position, the flapper operable to isolate an upper portion of a bore of the valve from a lower portion of the bore in the closed position; an opener connected to the housing for opening the flapper; and an abutment configured to receive the flapper in the closed position, thereby retaining the flapper in the closed position.

Abstract: In accordance to one or more aspects of the disclosure an indexing track for controlling a dual valve assembly includes a plurality of interconnected pressure-up and pressure-down slots that define sequence paths to translate the pin and to actuate the dual valve assembly to a first position when the pin is in a first track position, to a second position when the pin is in a mid-track position, and a third position when the pin is in a third track position.

Abstract: A coiled adaptive seat is held to a smaller diameter for delivery with a tool that can feature a locating lug for desired alignment of the seat with an intended groove in the inner wall of a tubular. The release tool retracts a cover from the seat allowing its diameter to increase as it enters a groove. Alternatively the adaptive seat is released near the groove and pushed axially in the string to the groove for fixation. Once in the groove the inside diameter of the string is a support for a blocking object so that sequential treatment of parts of a zone can be accomplished. The blocking object is removed with pressure, dissolving, milling or disintegration leaving a narrow ledge in the tubular bore from the seat that can simply be left in place or milled as well. An E4#10 from Baker Hughes is modified for adaptive seat delivery.

Abstract: A system for performing an operation in a wellbore comprises a tool (4) configured for deployment within the wellbore on an insulated slickline (6), and a winch (26) for hauling in and/or paying out the slickline. The system further comprises a winch controller (34) which is configured to receive information transmitted electrically from the tool along the slickline and to control the winch according to the received information. The tool may comprise a downhole tractor. The tool may comprise an electrical generator tool or a tool for performing a mechanical operation within the wellbore.

Abstract: The invention is a downhole petroleum well tractor having a main body (0) connectable to an electrical conductor logging cable (5) from a surface high voltage DC power supply (50), characterized by said main body (0) comprising a common HV DC power line (4) provided with high-voltage DC power supplied from said electrical cable (5); two or more HV DC branch power lines (40) from said common HV DC power line (4), each said HV DC branch power line (40) feeding power to a HV motor drive electronic unit (21) for a drive motor (2); each said drive motors (2) driving one or more drive devices (6) for running on and along a wall in a well for moving said tractor; separate HV DC circuit breaker units (8) on each said HV DC branch power line (40), each said HVDC circuit breaker (8) unit comprising control means (82, 86, 88) arranged for monitoring a current (I) on said HV DC branch power line (40) and controlling a HV DC power switch (84) on said HV DC branch power line (40) to break said current (I) if said current (

Abstract: A debris separator device for use with a casing system is provided. The debris separator device may include an impeller having a plurality of blades to generate a vortex of mud in the section of the casing system when the casing system is lowered into a wellbore. The device may also include a baffle disposed in the section of the casing system, the baffle having an annular cup shape that forms an outer circumferential pocket to capture debris from the vortex of mud. The impeller and baffle may enable the debris separator device to separate debris and other debris from a flow of mud through the casing system so that the debris does not clog a float collar of the system. The disclosed debris separator device may be flushable so that the device does not become clogged with debris and can thereby maintain auto-fill through the casing system.

Abstract: An electromagnetic jarring tool and related systems and methods provide for the use of an electromagnetic system to generate jarring forces within a wellbore. The electromagnetic jarring tool includes a chamber having a first end and a second end, a magnetic hammer disposed within the chamber, and an electromagnet operable to generate an electromagnetic field across at least a portion of the chamber. The magnetic hammer is operable to move toward the second end of the chamber in response to the electromagnetic field to deliver an impact. One or more electromagnets may be included to enhance operation of the tool, and the tool may be actuated by a surface controller that selectively delivers electrical power or a control signal to the tool to specify a mode of operation of the electromagnetic jarring tool.

Abstract: A blow out preventer (“BOP”) includes a vertical bore extending through the body, a ram cavity intersecting the bore, and a port located below the ram cavity. A sensor assembly is locatable in the port and is configured to monitor the position of at least one opposing ram contained in the BOP. At least one of the rams includes a detection feature on a lower surface of the ram which is distinguishable from the rest of the ram body, other features of the BOP, and any debris in the bore of the BOP. The detection feature is detectable by the sensor assembly. The detection feature may include a visual indicator.