Abstract: Disclosed are embodiments of a tapered bolt receiver for a door lock to accommodate misalignment, between a deadbolt mounted to a door, and an opposing jamb. The tapered bolt receiver can be configured to accommodate misalignment for a deadbolt having a non-tapered bolt, such as for an electromechanical smart lock having a battery stored within a battery compartment that is integrated with an enhanced bolt. Also disclosed are embodiments of a deadbolt plate pivot assembly that is pivotably mountable to a corresponding deadbolt assembly to define a plate pivot system, to accommodate a beveled door edge. An illustrative embodiment of the deadbolt plate pivot assembly includes opposing plate that captures a hinge assembly, which can include plastic plate hinges, which serve to locate the deadbolt plate pivot assembly with respect to a corresponding bolt housing, and can provide a spring force and/or constant torque when mounted to a beveled door.

Abstract: A silent door lock comprises a panel (1), a lining board assembly (2), a box base component (3), a handling pick (4), a buffer handle (5) and a buffer drive (6); the buffer handle (5) includes a handle (51), a volute spiral spring (52), a toggling plate (53) and a damper (54); the handle (51) is inserted into the volute spiral spring (52), the toggling plate (53) and the damper (54) in turn through a handle mounting hole (11) on the panel (1); the buffer drive (6) includes a drive (61), a drive return spring (62), a silencing retainer sleeve (63), a drive guide vane (64) and a drive lever (65); the silencing retainer sleeve (63) consists of a front cover of the silencing retainer sleeve (631), two O rings (632) and a rear cover of the silencing retainer sleeve (633).

Abstract: An electronic key for a vehicle includes an upper case component of a key case, a lower case component attachable to the upper case component, and a mechanical key that is selected from among a first mechanical key that is used in a state of being totally removed from the key case and a second mechanical key that is used in a protruding state of partially protruding from the key case. The lower case component is selected, so as to correspond to the mechanical key, from among a first lower case component that accommodates the first mechanical key to be removable and a second lower case component that accommodates the second mechanical key to be movable into the protruding state.

Abstract: Determining a position of a deadbolt used to lock and unlock a door is disclosed. An electromechanical lock can include a deadbolt that can retract or extend along a linear path as the door is to be locked and unlocked. A sensor such as an accelerometer can rotate along a non-linear path as the deadbolt moves along a linear path. The accelerometer can determine a gravity vector that can be indicative of a position of the accelerometer along the non-linear path. A controller can then determine a position of the deadbolt based on the gravity vector.

Abstract: Certain aspects of the technology disclosed herein include an apparatus and method for storing energy in a electromechanical lock. The electromechanical lock can include a main housing and a deadbolt. The main housing can be configured to extend a deadbolt along a path to lock and/or unlock a door. The deadbolt can have a hollow inner region configured to receive an energy storage device. The energy storage device within the deadbolt can be electrically connected to the main housing. The energy storage device can be used to power an actuator and/or accelerometer in the main housing.

Abstract: Certain aspects of the technology disclosed herein include an apparatus and method for a extending a deadbolt. The electromechanical lock can include a deadbolt extending device disposed between a main housing and a deadbolt. The deadbolt extension device can be used to adapt the electromechanical lock to doors of various sizes. The deadbolt extension device can include another electrical connection and another attachment mechanism for the deadbolt. The another electrical connection can be configured to electrically connect the deadbolt with the main housing. The another attachment mechanism can be configured to attach the deadbolt a pre-defined distance apart from the main housing.

Abstract: Certain aspects of the technology disclosed herein include an apparatus and method for electrically and mechanically connecting a deadbolt to a main housing of a lock. The main housing can be configured to extend a deadbolt along a path to lock and/or unlock a door while receiving electrical energy from an energy storage device disposed in the deadbolt. The energy storage device disposed in the deadbolt can be proximate to one or more electrical contacts electrically connected to one or more components in the main housing via conductive components of a bolt carriage. The bolt carriage includes a groove attachable to a male detent connector attached to the deadbolt. The groove in the bolt carriage provides a mechanical connection to the deadbolt and also aligns pogo pins with electrical components of the bolt carriage to enable electrical transmission from the deadbolt to the main housing.

Abstract: This invention relates to locking devices and particularly to an actuator assembly for a locking device with electronic control. The actuator assembly includes: a motor, having a drive shaft installed to a motor shaft, and a coil spring installed to the drive shaft, and further includes: a follower shaft capable of displacing in an axial direction in the coil spring, and a pin installed onto the follower shaft and rotatable into the coil spring, and the follower shaft is extended into the coil spring and slidably fitted to the coil spring. Compared with the prior art, this invention effectively maintains a radial limitation of the cylinder spring to overcome the vibration of the spring occurred during the rotation of the cylinder spring and the axial displacement of the follower shaft.

Abstract: Mechanically or electromechanically positioning a deadbolt used to lock or unlock a door is disclosed. An electromechanical lock can include a deadbolt to be positioned to lock or unlock a door. The deadbolt can be mechanically positioned based on the rotation of a paddle of the electromechanical lock or electromechanically positioned via a motor being turned on to position the deadbolt. A disengagement mechanism can disengage an engagement cog from a worm gear hub of a gear train of the motor upon the mechanical positioning, but remain engaged upon the electromechanical positioning.

Abstract: An anti-theft lock is provided, comprising: a lock pin provided with a retaining groove and configured to realize unlocking or locking through movement of the lock pin; a tongue configured to be able to enter the retaining groove to stop the movement of the lock pin or move out of the retaining groove to release the lock pin to allow the lock pin to move; and a tongue driving member connected to an output shaft of a motor and configured to convert a rotational driving force of the motor into a driving force allowing the tongue to move out of the retaining groove.

Abstract: An actuating assembly of a locking system (200) to operate a displaceable component of a latching system (210), includes: (i) a first member (24) which is connected or connectable to the displaceable component of the latching system (210); (ii) a second member (26), the first and second members (24, 26) being disconnectably connectable to each other, with the first and second members (24, 26) being in an inoperative configuration when they are disconnected from each other such that the second member (26) is displaceable independently of the first member (24), and the first and second members (24, 26) being in an operative configuration when they are connected to each other such that displacement of the second member (26) causes the first member (24) to be displaced; (iii) a first actuating sub-assembly (46) including a first key receiver (230) for receiving a non-mechanical first key in the form of a predetermined electromagnetic signal transmitted via a cellular telecommunications network from the communicat

Abstract: A mechanical button actuating portable suitcase locking device includes a lock seat, two first openings formed on the lock seat for accommodating a lock hook of a suitcase cover, a second opening formed on the lock seat, a button device installed in the second opening, two latch mechanisms installed on both sides of the button device. The button device includes a button seat, a second button installed in the button seat, two first cams symmetrically installed in the button seat for receiving the actuation of the second button. The latch mechanism includes two sliding grooves symmetrically formed in the lock seat, two sliding plates installed on a side of the two first cams and slidable in the sliding grooves respectively, two catch members symmetrically installed onto the sliding plate and capable of hooking the lock hook, and a cylinder spring installed between the sliding plate and the catch member.

Abstract: A portable suitcase with an electronic combination locking device includes a suitcase body, a suitcase cover, a pair of lock hooks installed to the suitcase cover, a pair of first openings formed on the suitcase body for accommodating the lock hooks, a first locking device installed on an outer top surface of the suitcase cover, and a set of numeric keys and first buttons installed on the first locking device; a second locking device installed onto the suitcase body, a second button device installed onto the second locking device and disposed opposite to the first button, and a pair of latch mechanisms for receiving the actuation of the second button device, and the first locking device receives a correct unlock password to release the lock of the first button, and the second button device receives the actuation of the first button to detach the latch mechanism from the lock hook.

Abstract: Examples described herein relate to a latch for releasably coupling objects. In some such examples, the latch includes a receiver, a torque member, and a handle. The receiver includes a lobe to releasably engage an anchor point within a recess of the receiver. The torque member is rotatably coupled to the receiver to rotate the receiver. The handle includes a torque portion rotatably coupled to the torque member to rotate the torque member and includes a lever extending from the torque portion.

Abstract: A butterfly handle locking device that fits into the standard butterfly handle such as found on sportsboards, sportscraft and other objects, the locking device having two main body portions that fit together, each body portion having an extending flange and a central region with an axial bore extending therethrough, the two main body portions each having a wing arm extending from the central region, the two main body portions coupled together with an axle that passes through the axial bore of each.

Abstract: In a vehicle door lock apparatus, when disposed in an unlocking position, a second lever enables a fork to be displaced to an unlatched position and, in a locking position, it disables the fork from being displaced to the unlatched position. Third levers displace the second lever from the locking position to the unlocking position in response to an unlocking operation being performed on a lock operator and displace the second lever from the unlocking position to the locking position in response to a locking operation being performed on the lock operator. In an unblocking position, a fourth lever linked to the fork separates from the second lever. In a blocking position, the fourth lever contacts the second lever and blocks it from being displaced to the locking position. A fifth lever is linked with the fourth lever, detects the position of the fork, and disconnects or connects a switch.

Abstract: For controlling vehicle egress, an apparatus is disclosed. A system, method, and program product also perform the functions of the apparatus. The apparatus includes a vehicle, a processor, a memory that stores code executable by the processor. The processor determines whether a supervised passenger is in the vehicle, locks a vehicle door in response to a supervised passenger being in the vehicle, and unlocks the vehicle door in response to the vehicle satisfying one or more predetermined destination criteria. The one or more predetermined destination criteria may include reaching a predetermined location and/or detecting a guardian of the supervised passenger in proximity to the vehicle.

Abstract: A motor vehicle door lock device includes an engagement mechanism that engages with a striker to hold the door closed; a positioned outside a vehicle; a locking mechanism that turns an unlock state for enabling the engagement mechanism to be released based on a door-opening action of the outside handle with a locking motor as a drive source and a lock state for making releasing impossible, a control that enables an operation of the switches when an external transmitter is authenticated and cancels it when it is not authenticated; and an electric release mechanism that can release the engagement mechanism regardless of a state of the locking mechanism by releasing a releasing motor as a drive source.

Abstract: A tailgate assembly includes a talegate and latch assembly. The tailgate is moveable between open and closed positions. The latch assembly includes an actuator, a latch, and a stopper. The actuator is operative to move the latch between an unlatched position where the latch allows movement of the tailgate from the closed position, and a latched position where the latch prevents movement of the tailgate from the closed position. The stopper is responsive to movement in the actuator to move between a nonstopping position and a stopping position. In the stopping position, the stopper prevents the latch from moving from the latched position to the unlatched position other than by the actuator.

Abstract: A locking device for a vehicle door, in particular for a motor-vehicle bonnet, comprising a first inhibiting pawl prestressed into an inhibiting position, wherein a rotary latch can be arrested in a locking position by the first inhibiting pawl located in its inhibiting position, and a second inhibiting pawl prestressed into an inhibiting position, wherein the rotary latch can be arrested in a safety-catch position by the second inhibiting pawl located in its inhibiting position. The first and second inhibiting pawls can be transferred from their respective inhibiting position into a release position by a common actuating means.

Abstract: A sliding door controller device may include an inside handle disposed inside a sliding door; a hold open latch release lever disposed to rotate around a hinge, having a first bent portion formed outside the hinge, and disposed to rotate to one side around the hinge by the first bent portion pushed by the inside handle; and an inside handle lever disposed to rotate around the hinge, having a second bent portion formed outside the hinge, and disposed to rotate to the other side around the hinge by the second bent portion pushed by the inside handle.

Abstract: A pivot sliding door assembly for a vehicle with a door wing for opening and closing a door opening. The pivot sliding door assembly is secured against disengagement in a Z-direction. The assembly includes a rotary column assembly for displacing the door wing between a closing position and a displacing or open position. The door wing closes the door opening when in the closing position and the door wing can be displaced in the displacing position for opening the door opening along a displacement direction.

Abstract: A folding wall partition includes foldable panel assemblies. Each panel assembly includes an upper panel and a lower panel. The upper and lower panels extend substantially in a common vertical plane when in a deployed position, and extend laterally outwardly of the common vertical plane in a stacked relationship when in a stored position. A moving mechanism engages the panel assemblies to displace them between the stored and deployed positions. A cover assembly has cover panels. The cover panels extend in a first common horizontal plane when in the deployed position and are substantially coplanar with the ceiling to conceal a cavity. The cover panels extend in a second common horizontal plane higher than the first common horizontal plane and within the cavity when the cover panels are in the stored position.

Abstract: A vehicle door system includes a vehicle door and electrically-powered linear and rotary actuators. The vehicle door system also includes a pinch sensor. Upon receiving an open door command, a controller actuates the linear actuator and then actuates the rotary actuator to open the door. The controller also actuates the linear actuator to prevent closing of the door if the pinch-sensor detects an object in a door opening. The controller actuates the rotary actuator to close the door upon receiving a close door command.

Abstract: An adjusting device for a vehicle part which is movable relative to a body of a vehicle, includes a drive arrangement having a drive unit and a movement state sensor, an adjusting element which is displaceable relative to the drive arrangement via the drive unit and a control unit for controlling the drive unit. The control unit is designed to actuate the drive unit according to an actual movement state. The disclosure also relates to a motor vehicle having a body and a vehicle part movable relative to the body, which part is equipped with an adjusting device.

Abstract: [Object] To provide a door frame structure and a method for mounting the door frame structure which improve rigidity, prevent deformation that is caused by relative story displacement of a building in the event of an earthquake, and enable easy mounting. [Solution Means] A door frame structure 1 is indirectly mounted to a wall surface 4 via mounting angles 11 fixed to the first reinforcing members 9. Therefore, the door frame structure 1 does not follow relative story displacement of the wall surface 4 caused, by lateral vibration in the event of an earthquake, so that deformation of the door frame structure 1 is minimized, and a door 31 can be opened and closed even in an emergency.

Abstract: A door panel comprises a body, first and second skins on opposite sides of the body, each having an opening aligned with the other opening, a first lip portion being provided on the first skin and adjacent the opening for holding a decorative panel and a pair of coupling elements provided on the first and second skins respectively and extending therebetween for inter-engagement to thereby fix relative positions of the first and second skins. The first and second skins define a space therebetween for receiving filling material to form the body, and include a partition in and extending across the space to delineate a portion of the space separate from the openings for receiving the filling material to form the body.

Abstract: Disclosed is technology addressing lighting issues using a signature perforated design diffuser panel that provides a dual purpose—artistic and artificial light source. Stated differently, the disclosed technology provides diffused lighting while creating a signature geometric perforated pattern. When turned off, the technology is wall art, and, when turned on, it is wall art that provides a signature lighting experience. Embodiments also include the same diffuser technology used to modify and condition natural light sources (e.g. sun light).

Abstract: A door that can be adapted to different spans is provided, structured in a first element (1) and at least a second element (2) attached in a coplanar manner to the former, including both (sets of openings (31) in one and a number of shafts/rod (32) in the other) for permitting a linear nearing/distancing movement between both elements (1, 2), and means (screws) for holding the elements to one another in any position. On at least one of their edges, the outer surfaces of one of the elements (1, 2) extend into respective superficial tabs (51, 52) between which a longitudinal recess (50) is defined, in which the facing edge (60) of the other element (1, 2) is accommodated, such that said edge (60) is guided and obscured from vision, providing continuity to the surface of the door.

Abstract: A modified combination door and frame. The modified combination door includes a door that is hingedly attached to and interlocks with a frame. The frame contains a plurality of cutouts and the door includes a plurality of protrusions, wherein the protrusions and cutouts can align with one another, allowing the frame to rest flush with the door. A locking mechanism containing a lever secures the frame to the door when disposed flush together. When the locking mechanism is unsecured, the frame can move independently from the door. In some embodiments, the frame includes a coating to create an appearance that is consistent with the look of the door. The frame is composed of any suitable material that secures the entryway of a building from unauthorized intrusion.

Abstract: An apparatus includes: an elongate weatherstrip, which forms in cross-section: a blade; a retainer connector adjacent a first face and partway between opposed ends of the blade; and one or more sealing members along a second face of the blade. A method includes installing a weatherstripping assembly on a door, window, door frame, or window frame, of a building or vehicle.

Abstract: An actuating system for a window shade includes a fixed support shaft, a rotary drum pivotally connected with the support shaft, the rotary drum being rotatable for winding or unwinding a shading structure, and a limiting mechanism disposed inside the rotary drum and including a threaded portion provided on the support shaft, a stop portion, a limiting part, and a follower engaged with the threaded portion, the stop portion and the limiting part being respectively disposed adjacent to a first and a second end of the threaded portion, and the follower being rotationally coupled to and slidable relative to the rotary drum. The rotary drum is rotatable in a first direction to drive the follower to slide toward a first position for engagement with the limiting part, and in an opposite second direction to drive the follower to slide toward a second position for engagement with the stop portion.

Abstract: A multisectional blind and solar collector combination device includes a plurality of parallel and vertically spaced housings. A back face of a primary one of the housings is a fixed solar panel. A power module is positioned in the primary housing and operationally coupled to the fixed solar panel. Each of a plurality of sections is coupled to a respective one of the housings and has a plurality of slats. Each housing holds a respective slat spacing motor and a respective slat rotation motor operationally coupled to the power module and the slats to adjust positioning and rotation of the slats within each section.

Abstract: An apparatus controls the operation of multiple barriers at a common location. The apparatus includes a controller that determines which particular barrier operator among a group of several barrier operators should execute functionality based on certain operating conditions (e.g., location, speed, direction, orientation, etc.) relative to a controller or another component of the apparatus. In response to a user operating an interface in a manner intended to effect a barrier operator function, the apparatus causes the particular barrier operator to execute the function without affecting the other barrier operators among the group.

Abstract: The present gate includes a barrier frame and a gate in the barrier frame. The gate is opened by inserting a foot into a foot opening in the gate, which action compresses springs disposed about pivot pins between the gate and the barrier frame and draws an extended latch downwardly and out of a latch receiver that is bottomless, which action unlatches and frees the gate from the barrier frame such that the gate can be swung open. Downward travel of the gate is minimized until a foot pushes a pivoting stop out of the way.

Abstract: A control unit for controlling machine functions of a mining machine, such as an underground mining machine, tunneling machine or bolting rig, includes a flameproof housing having at least one fluid inlet and at least one fluid outlet, and a plurality of fluid control valves respectively communicating with the at least one inlet and outlet. In particular, the fluid control valves are formed inside at least one valve monoblock, the monoblock including a plurality of distinct fluid passages.

Abstract: Directional drilling of a borehole involves: positioning an apparatus in a borehole such that a housing of the apparatus and the borehole wall define an outer annular space; flowing drilling fluid to the outer annular space via an inner annular space defined between the housing and an inner drive shaft of the apparatus; actuating a clutch for selectively coupling the housing to the drive shaft for rotation with the drive shaft and for adjusting the tool face of the housing; and actuating a valve to control drilling fluid flow between the outer annular space to a piston chamber, relative to drilling fluid flow between the inner annular space and the piston chamber to thereby control drilling fluid pressure in the piston chamber. The drilling fluid pressure in the piston chamber and a biasing means act in opposing directions on a piston to urge the piston either towards or away from the borehole wall.

Abstract: In at least one aspect, the disclosure relates to a vibration assembly for a downhole tool positionable in a subterranean formation. The vibration assembly includes a vibration race positioned in the downhole tool, the vibration race having a non-planar engagement surface. The vibration assembly also includes an additional race positioned in the downhole tool a distance from the vibration race, the additional race having another engagement surface facing the non-planar engagement surface of the vibration race. The vibration assembly also includes a cage positioned between the vibration race and the additional race and rollers positionable in the cage, the rollers rollably engageable with the non-planar engagement surface and the another engagement surface to vary the distance between the vibration race and the additional race whereby axial movement is provided in the downhole tool.

Abstract: A drill bit insert attached to a tip portion of a drill bit to perform drilling, includes: an insert body (1) that includes: a rear end portion buried in a bit body of the drill bit; and a tip portion protruding from a surface of the drill bit and tapered toward a tip side of the insert body, in which a surface of at least the tip portion of the insert body (1) made of polycrystalline cubic boron nitride compact (4) sintered using a catalytic metal containing Al and at least one selected from the group consisting of Co, Ni, Mn, and Fe and containing 70 vol % to 95 vol % of cubic boron nitride.

Abstract: An apparatus to attach a control line to a tubular member, in which the apparatus includes a control line arm having a first control line guide coupled thereto, and a base having a second control line guide coupled thereto, with the control line arm coupled to the base and movable with respect to the base. The control line arm may be movable between a raised position and a collapsed position with respect to the base, and the control line arm may be at least one of slidably coupled and rotatably coupled to the base.

Abstract: A threaded pipe joint, when acted upon by a tensile load, does not break on the female thread-side of a first thread section of a second thread series that extends from an intermediate shoulder. The threaded pipe joint reliably undergoes tensile rupture on the female thread-side of a first thread section of a first thread series, which is the original critical cross-section site. The threaded pipe joint is configured so that when the male and female threads of the intermediate shoulder are screwed together, the load flank-side thread gaps L1G and L2G of a first thread series, which is the radially inward thread series, and a second thread series, which is the radially outward thread series, on the two sides of the intermediate shoulder always satisfy the relationship L1G<L2G.

Abstract: A wear prevention system for a pumping system of a oil or gas well, the system comprising a sucker rod string comprising a plurality of rod components, a production pipe string, couplers for the rod components and centralizers for the rod components within the production pipe wherein centralizers are on the couplers. The centralizers contain integral signal mediums which are released as the centralizer becomes worn. The sucker rod string comprises rod components of different lengths and the rod components of relative shortest length are positioned at points of greatest curvature in the well. The rod components of relative shortest length have centralizers which contain different signal mediums to the rod components of relative longest length.

Abstract: A downhole probe is adapted to be supported in drill string sections having different internal diameters with the use of a set of interchangeable centralizers. Each centralizer is dimensioned to snugly receive the downhole probe and to bear against the bore wall of a drill-string section. Interchangeable axial supports such as spiders may also be provided in a set. The downhole probe may comprise a slick body. As drilling progresses the downhole probe may be adapted to be received in drill string sections of varying diameters.

Abstract: A fluid containment system for a riser slip joint includes a fluid container sealingly engaged to a fixed part of the slip joint. A movable part of the slip joint is axially movably engaged with the fixed part. An annular seal is disposed between the fixed part and the movable part. A body of fluid disposed in the fluid container has a level selected to submerge the annular seal and at least a portion of the movable part. The system includes means for maintaining a level of the body of fluid substantially constant.

Abstract: A duplex snubbing jack and method of snubbing pipe into a well bore is disclosed. The duplex snubbing jack includes first and second gripping units that alternately and synchronously grip and release a length of pipe to be attached to a pipe string. The first and second gripping units are synchronously movable upward and downward toward and away from each other to push or pull the pipe through a BOP stack and into or out of a wellbore. Linear actuators are used to synchronously move the first and second gripping units. Guide rails are provided to laterally support the pipe as the pipe is pushed or pulled through the BOP stack into or out of the wellbore. The first and second gripping units are preferably slip-type spiders.

Abstract: A stripper adapter mounted on a coiled tubing injector head unit includes a swivel ring secured between an upper thrust washer and a lower thrust washer, wherein the swivel ring is rotatable 360 degrees about a longitudinal axis.

Abstract: A coiled tubing injector head unit includes a first bearing carrier and a second bearing carrier attached to a frame of the injector head unit that support an input drive shaft extending between the first and second bearing carriers, a sprocket shaft coupled to the input drive shaft that supports a pair of continuous parallel drive chains that revolve in a common plane and have opposed, elongated parallel runs spaced apart to form a path for engaging tubing passing there through, and a hydraulic motor attached to the frame opposite the first bearing carrier, and a gearbox attached to the frame opposite the second bearing carrier, wherein the input drive shaft is operatively connected to and extends between, but is not supported by, the hydraulic motor and the gearbox.

Abstract: An electro-separation apparatus for separation of drilling fluids is provided. The apparatus can include a reaction chamber and a set of electrode plates provided in the reaction chamber. A sediment outlet can be provided near a bottom of the reaction chamber and wiper blades can be provided for sweeping sediment that has collected on the electrode plates towards the sediment outlet.

Abstract: In some embodiments, a pre-treatment source generates pre-treated oilfield fluid from oilfield fluid, prior to injection into an inverting filter centrifuge system. The pre-treatment source increases an efficiency of separating solids from the injected oilfield fluid. An inverting filter centrifuge coupled to the pre-treatment source generates filtered oilfield fluid from the pre-treated oilfield fluid. Post-treatment may be applied to the filtered oilfield fluid. Additional apparatus, systems, and methods are disclosed.

Abstract: A magnetic pulse actuation arrangement including an inductor, a workpiece spaced from the inductor, a reluctance reduction configuration in magnetically operable communication with the inductor and the workpiece. Also included is a method for completing a borehole including running an arrangement as in any prior embodiment into the borehole, configuring the arrangement to reduce reluctance, generating a magnetic pulse, and moving a workpiece.