Abstract: A fire resistant shelter is provided which controls a temperature of an underground evacuation space in case of a long-lasting fire. A fire resistant shelter comprises a shelter main body, a water supply device, a heat insulating housing, and a drain device. The shelter main body is made of concrete having a thickness of 30 cm and is provided with an evacuation space therein. When a fire breaks out, an evacuee escapes to the evacuation space, closes an underground door, and subsequently opens a valve of a water supply pipe through a remote operation from inside the evacuation space. This supplies water to a heat-insulating space. When water being stored up to a level corresponding to the top end of the evacuation space is confirmed, the supply of the water is stopped. At that time, the water remains at a predetermined level in a ceiling water tank.

Abstract: The handle attachment includes a base portion that can be attached to a portion of a wall surface of a door, a flap portion that applies, as a result of a pulling operation, a pulling force to the door via the base portion, a flap rotation mechanism that rotatably connects the flap portion with respect to the base portion around a rotation axis, and a biasing member that biases the flap portion in a first rotation direction around the rotation axis with respect to the base portion. The flap portion includes a base end portion connected to the flap rotation mechanism and a distal end portion arranged at a position away from the flap rotation mechanism. The first rotation direction is a direction in which the distal end portion of the flap portion separates from the wall surface of the door.

Abstract: A noise reduction strike plate covering including a sheet of noise dampening material adaptively shaped to cover a strike plate in a door frame with a portion of the sheet including a bolt hole insert adaptively shaped to insert a bolt hole through the strike plate and a portion of the sheet including a strike ramp grip adaptively shaped to grip an end of a strike bolt ramp of the strike plate.

Abstract: Systems, methods, and apparatuses in accordance with embodiments of the invention can use a variety of computing devices to interact with and/or control a secure enclosure for a key fob. The secure enclosure may enclose the key fob, and includes a computing device, a locking mechanism, and at least one actuator. An actuator may control the locking mechanism. The actuator, when activated, may exert a force on a key fob secured within the secure enclosure, which may cause one of the buttons of the key fob to be depressed. The computing device controls the activation of the actuators. The computing device may have wireless communication capability that allows a user to wirelessly control the actuators of the computing device, for example, to lock or unlock the enclosure, or to depress a button of the key fob secured within the enclosure.

Abstract: An opening device for a door lock is provided. The opening device includes a driver rigidly connected to an inside handle; an inside shaft designed to rotate an internal latching mechanism of the door lock, the inside shaft having a follower and a through cavity; a first gear engaged rotationally to the driver; an outside shaft designed to be rotated by an outside handle, the outside shaft including a cylindrical part disposed inside the through cavity of the inside shaft, a polyhedral part engaged with the outside handle, and a gear seat located at end of the cylindrical part and outside of the inside shaft; a second gear slidable along the gear seat; an engagement mechanism causing the first gear and the second gear to be engaged, thereby causing the driver to engage the follower, which causes the inside shaft to rotate in response to rotation of the outside shaft.

Abstract: Disclosed are a control method for an electronic lock and an electronic lock based on the control method. The electronic lock has a simple structure, and jointly control a snap hole on the handle with a telescopic body of the electromagnet located on the lock body base and a push rod controlled by the unlock mechanism. The telescopic body of the electromagnet has the characteristics of self-holding function when power off through the first permanent magnet, which not only the hidden danger of illegal unlocking through mechanical structure is solved, but also the power consumption of electronic lock in preventing illegal lock opening can be greatly reduced. The market's technical requirements for electronic locks can be met, and high promotion value can be obtained.

Abstract: A vertical door latch assembly includes a housing and a bolt movably attached to the housing having a catch portion. A drive motor is located within the housing and is configured to selectively move a lock assembly between a locked position preventing movement of the bolt and an unlocked position allowing movement of the bolt. A controller is in electrical communication with the drive motor and is configured to direct the actuator lock assembly between the locked position and the unlocked position.

Abstract: The disclosure relates to a portable lock having an unlocking motor, an authentication for authenticating the user of the lock, and an actuation element that can be actuated by the user to activate the unlocking motor to unlock the lock after a successful authentication of the user. A further subject matter is a locking system having such a lock and a mobile end device to allow a user of the lock to authenticate himself thereat. The disclosure also relates to a method of unlocking a mobile lock.

Abstract: There is disclosed a high Gauss magnetic lock comprising at least one high grade steel ball-bearing but typically 3 or 4 ball bearings, one generally non-ferrous ball basket that will carry and hold in a specific position the ball-bearing(s), at least one non-ferrous spring, one ferrous calibrating high precision element, and one generally non-ferrous and conical ball cage where the ball basket will evolve up and down pushed by the spring and pulled down by a magnetic field.

Abstract: A security strip defining a security slot and attachable to a mobile electronic device has a strip body shaped as a flat and thin, strip-shaped component with a length, a width and a thickness dimension, wherein the length of the strip body is at least ten times times the thickness dimension of the strip body. Screw holes enable screwing the strip body to an underside of the mobile electronic device. A security slot body protrudes from the strip body and has a thickened portion thicker than the thickness dimension of the strip body and defining therein a security slot in which a locking element of a locking device is receivable, the security slot body extending along the one of the side walls of the mobile device. The security strip includes at least one cutout that enables the security strip to extend generally in line of one of the front and rear legs of the mobile device so that at least one of the front or rear legs is at least partially locatable in the at least one cutout in the strip.

Abstract: A security apparatus for a portable electronic device includes a force-transmission member having a length, a first end, and a second end. A lock head is coupled to the first end of the force-transmission member, the lock head configured to selectively engage the electronic device and movable by the force-transmission member between a locked position, in which the lock head is secured to the electronic device, and an unlocked position, in which the lock head is unsecured from the electronic device. An actuator assembly is spaced a distance from the lock head along the length of the force-transmission member. The actuator assembly includes a body and a manual actuator pivotally coupled to the body, the manual actuator being pivotable from a first position to a second position to move the movable member relative to the body such that the lock head moves from the unlocked position to the locked position.

Abstract: A door handle assembly intended to be mounted on a door of a motor vehicle and its mounting/dismounting method includes a handle linked to a base via a an arm slidably mounted in a housing of the base and including a hook at one of its ends, an actuation device including a first lever engaging the hook, the actuation of the handle causing the sliding of the hook of the arm of the handle and the displacement of the first lever of the actuation device toward the outside of the base along a sliding axis and the actuation of the door opening mechanism to open the door.

Abstract: A closure latch assembly for a decklid configured to provide a power release operation and a power cinch operation. The closure latch assembly includes a latch mechanism, a latch cinch mechanism, a drive mechanism, and a power actuator. The power actuator interacts with the drive mechanism to provide a power release of the latch mechanism and a power cinch of the latch cinch mechanism.

Abstract: A locking device for car doors without door handles, including: an electronic control unit for authorization of access, the electronic control unit being connected to one or more sensors and/or to an antenna for wireless communication for communication with a smart device; and a driven mechanical lock/or unlock unit including a latching element for latching a closed end position of a car door, wherein the latching element is provided to block an intermediate position of the car door, into which the car door is movable dependent on a correct access authorization and wherein the intermediate position of the car door enables a grip behind an outside surface of the car door to unlock the intermediate position of the car door and to allow further movement of the car door into an open end position.

Abstract: A latch device including: a latch mechanism configured to hold a door at a closing position; an electric releasing mechanism configured to release meshing of the latch mechanism; a manual releasing mechanism configured to release meshing of the latch mechanism; and a lock configured to switch between a locked state of the manual releasing mechanism and an unlocked state, wherein the electric releasing mechanism is configured to switch the lock from the locked state to the unlocked state by releasing meshing of the latch mechanism and switch the lock from the unlocked state to the locked state when a rotating cam returns to a reference position by a biasing force of a spring, when the lock is in the locked state and the rotating cam rotates by a predetermined angle in a first direction from the reference position by power of a motor against a biasing force of the spring.

Abstract: A handle system for a vehicle and a control method for the handle system includes a handle body, a touch sensing device and a controller. The touch sensing device includes one or more sensing circuits. The handle body is arranged on a vehicle door, and the touch sensing device is arranged in or on the handle body and is capable of generating a corresponding sensing signal in response to a touch on the handle body. The controller is capable of generating a corresponding control signal according to the sensing signal, and controlling, according to the control signal, a handle driving device. The handle driving device drives the deploying or retracting of the handle body, and performs activation, locking and other control operations on a vehicle.

Abstract: A container seal includes a locking bolt, which has on one end portion or central portion thereof a push-in/latch compartment which is open in the transverse direction relative to the lock axis and is formed or provided with an undercut acting in the direction of the latch compartment opening; a clip or tab, wherein the clip or tab is arranged on the other end portion of the locking bolt; and a bolt or bar which is arranged on the free end/end portion of the clip or tab and has on the free end/end portion thereof a latch device which is coupled to the bolt via a predetermined breaking point.

Abstract: A door security device for an out-swing door includes a mounting plate secured to the door, a hinge pin assembly supported by the mounting plate proximate the door outside edge, a clasp swing plate secured to the hinge pin assembly for pivotal movement between unlocked and locked positions, a door frame anchor bolt received in a clasp cut-out of the clasp swing plate captured behind an enlarged anchor bolt head in the locked position in a lowermost position of the clasp swing plate, the clasp swing plate biased by force of gravity to the lowermost position, and the mounting plate having a first receiver top surface at the hinge pin vertical axis, the first receiver top surface defining the uppermost position of the clasp swing plate in an unlocked position parallel to the mounting plate and defining the lowermost position of the clasp swing plate in the unlocked position perpendicular to the mounting plate.

Abstract: A leafless joint apparatus that couples an enclosure housing to an enclosure cover or door. Similar to previous hinge apparatuses, the leafless joint apparatus can include a knuckle and a pintel or pin to facilitate pivot operations (e.g., the cover pivoting open). However, the leafless joint apparatus does not rely on leafs that attach by means of fasteners (e.g., screws or the like) and therefore can facilitate sliding operations (e.g., the cover can slide open). Thus, the leafless joint apparatus can facilitate access to an interior of the enclosure by way repositioning the cover of the enclosure via a pivot or hinging operation or via a sliding operation that can partially or fully expose the interior of the enclosure and even, if desired, slide entirely off, decoupling from the enclosure housing.

Abstract: An adjustable length counterbalance mechanism for lift doors, frequently used for cargo trailers and garages. The adjustable length torque shaft of the counterbalance mechanism is able to accommodate many different lift door widths and is simpler to install than a fixed length torque shaft. In embodiments, the adjustable torque shaft is comprised of two outer torque shafts, each with a torsion spring and cable drum and a middle torque shaft that can be assembled together. The middle torque shaft can be inserted into each of the outer torque shafts to a selected depth to determine the length of the adjustable torque shaft.

Abstract: A counterbalance system that is set into the guide track of a tilt-in window. The counterbalance system utilizes a brake shoe that is attached to a ribbon spring. The ribbon spring has a shaped head that is retained by the brake shoe. A flexible tab is formed in the ribbon spring near the shaped head. A protrusion extends from the brake shoe. The brake shoe has a receptacle that receives and retains the shaped head of the ribbon spring, therein interconnecting the ribbon spring to the brake shoe. A cam is supported within the brake shoe. The brake shoe expands when the cam is turned. This causes the protrusion on the brake shoe to be biased against the flexible tab in the ribbon spring. This, in turn, causes the flexible tab to flex and extend away from the ribbon spring at an inclined angle. Within the guide track of the tilt-in window, the extended flexible tab acts as a barb and engages the side wall of the guide track.

Abstract: A door device for the interior of a passenger transport vehicle, and a passenger transport vehicle having at least one door device. The device includes a double-leaf sliding door with a first door leaf and a second door leaf in one plane. The door device has an upper guide for the first door leaf and an upper guide for the second door leaf. The guides are parallel with one another, and at least the upper guide for the first door leaf is offset with respect to the plane of the first and the second door leaf.

Abstract: A hinge system for a panel includes a first plate configured for coupling to a structure, a second plate rotatably coupled to the first plate and disposed on a first side of the panel, a third plate disposed on a second side of the panel opposite the first side, and a slider piece disposed within the panel, the slider piece having a first slot disposed therein. The second plate is coupled to the third plate via at least one fastener, wherein the at least one fastener is configured to slide within the first slot of the slider piece such that the panel may translate relative to the second and the third plates.

Abstract: In embodiments, a hinge includes a first hinge element for arrangement on a closing element and a second hinge element for arrangement on a frame, the first and the second hinge elements being connected to each other to pivot about a hinge axis, and at least one actuating element for adjusting the spacing of the hinge axis relative to at least one of the first and the second hinge elements.

Abstract: An automatic door device includes a driving motor and a transmission system. An input end of the transmission system is coupled to an output shaft of the driving motor, an output end of the transmission system is coupled to a door shaft, and the transmission system has a transmission link to transmit an output torque of the driving motor to the door shaft. A clutch mechanism is disposed on the transmission link of the transmission system. Accordingly, when the door is subjected to an external force, the transmission link between the door and the driving motor can be automatically disconnected, so that while an automatic door function implemented, it is ensured that a user may not be affected by the resistance brought by the automatic door device when the user opens/closes the door manually, thereby optimizing user experience.

Abstract: Provided is a refrigerator. While a user is holding an object in both hands, a door may be automatically and additionally opened using another part of a body other than hands.

Abstract: A heavy duty full energy, encoder driven non-handed electric door operator for industrial and commercial use a motor and an encoder configured to receive an external set of predetermined instructions. A motor mounting bracket connects the motor to a multi-layer housing. A controller is in electronic communications with the encoder and transmits external sets of predetermined instructions. Internally, the door operator contains a plurality of transfer shaft assemblies in communication with each other and connected with the motor at one end and an output shaft at the other end. The output shaft terminates at each end in a nondetachable spline. A detachable mounting plate serves as a base. The door operator operates heavy swing doors external to a building where the swing doors are required to be open or remain open in strong wind conditions.

Abstract: An entrance system (1) comprises a swing door member (10) having a door leaf (12), and a sensor unit (S1; S) mounted to the door leaf (12), the sensor unit comprising a door angle sensor (S1). The entrance system (1) further comprises an automatic door operator (30) having a motor (34) capable of causing movement of the door member (10), a controller (31) for controlling operation of the motor (34), and a linkage (40) connected to the automatic door operator (30) and the door leaf (12) for transferring torque generated by the motor (34) to the door leaf (12). The automatic door operator (30) is operable in a learn mode (60) and an operational mode (70). In the learn mode (60), the controller establishes a linkage reduction curve (65) relating a movement of said door member (10) with the torque required to move the door leaf (12) through different angles (?). The door leaf angles are determined from measurement readings of said door angle sensor (S1).

Abstract: An apparatus includes a control unit. The control unit is configured to control an automatic flap and/or door. The flap and/or door is automatically transferrable from an open position into a closed position by at least one actuator. The flap and/or door is configured to press against a seal when in the closed position. In relation to a closing operation of the flap and/or door, the control unit is configured to determine time information in relation to an open state time duration during which the flap and/or door was in the open position before the closing operation. In relation to a closing operation of the flap and/or door, the control unit is also configured to operate the at least one actuator configured for the closing operation as a function of the time information.

Abstract: A door for allowing access to an interior space of a housing, one end of the housing is sealed with a cover having a plurality of cover components, the door comprising: a sun gear comprising a rotational axis, the sun gear is attached to the housing; a ring having a central axis coaxially disposed with the rotational axis of the sun gear; and a plurality of planetary gears evenly distributed about the central axis of the ring, each the planetary gear comprising a rotational axis and rotationally coupled to the ring and the sun gear, wherein the rotational axis of each the planetary gear is disposed parallel to the central axis of the ring, wherein each of the cover components is configured to be attached to one of the plurality of planetary gears and when the ring is rotated with respect to the housing, the plurality of cover components separate.

Abstract: A door hinge assembly includes a hinge plate including: (i) an inner portion adapted to be connected to an associated structure; and, (ii) an outer portion adapted for pivoting connection of an associated door thereto. The hinge assembly also includes a damper system with a damper connected to one of: (i) the hinge plate; (ii) the associated door. The damper is adapted to be activated by pivoting movement of the associated door in a closing direction toward a closed position of the associated door such that said damper slows movement of the associated door toward the closed position when the damper is activated.

Abstract: A sliding sash assembly for use as a door or window includes: (a) a frame defining a frame opening; (b) a pair of sashes mounted in the frame opening and slidable relative to each other along an opening axis between a closed position and an open position; and (c) at least one stop device including a housing and a pair of depressible stop members movably mounted in the housing. The stop members are spaced apart from each other along the opening axis. Each stop member is selectively movable independent of the other stop member between a retracted position in which the stop member is retracted into the housing and an advanced position in which the stop member projects from the housing for engagement with one of the sashes to restrict movement of the sashes relative to each other toward the open position.

Abstract: A composite trim molding assembly includes a composite outer shell having at least one pressed or molded surface feature and a core disposed within the composite outer shell for at least one of strengthening or stiffening the outer shell. The composite trim molding assembly can be configured as a door jamb. For example, the composite outer shell can include a flat jamb, and the at least one pressed or molded surface feature can include a stop. The core can include a protrusion into a cavity formed by the stop. The cavity formed by the stop may also be hollow. The composite outer shell can be molded from a slurry and/or pressed from a flat composite panel. The at least one pressed or molded surface feature can include a surface texture (e.g., a wood grain pattern). The core can include segments fastened together, particle board, and/or fiberboard.

Abstract: A window attachment system for attaching a window to an opening in a building includes a male portion and a female portion. One of the male portion and the female portion is attached to one of the outer perimeter of the window frame or the inner perimeter of the opening in the building. The other of the male portion and the female portion is attached to the outer perimeter of the window frame or the inner perimeter of the opening in the building. The male portion is engaged with the female portion when the window is placed into the opening.

Abstract: A bead for releasably securing a glazing unit to a frame member, comprising a body having a first end and a second end, and a resiliently deformable member secured to the body and having a first finger extending from the body to a first end, and a second finger extending from the first finger to a second end. The first end of the body and the first end of the first finger are configured to engage with respective first and second ends of a frame member so as to secure the bead to the frame member. The second end of the body is configured to secure a glazing unit against an opposed seal of the frame member. The body comprises a first material having a first stiffness and the deformable member comprises a second material having a second stiffness less than the first stiffness.

Abstract: A spacer for an insulated glazing unit (IGU) is provided herein, along with an IGU and methods of making the spacer and IGU. The spacer imparts high thermal insulation to the IGU. Also provided are methods of preparing an insulating glazing unit, as well as methods of preparing a spacer for an IGU.

Abstract: An apparatus for an architectural opening comprises a plurality of panels pivotably connected together. At least one of the plurality of panels comprises a frame comprising a plurality of first frame members connected to a plurality of second frame members at respective interfaces to define at least one opening. The interfaces are defined by ends of the plurality of first frame members positioned at least partially within respective apertures defined in the plurality of second frame members. Each of the first and second frame members comprise an internal cavity filled with a gas having a thermal conductivity between 2 mW/(m·K) and 25.5 mW/(m·K) at 25 degrees Celsius. The at least one of the plurality of panels also comprises an inset panel secured within the at least one opening.

Abstract: A fenestration unit includes a frame corner key that includes a corner key fluid outlet and a cladding having an aperture for the corner key fluid outlet. The fenestration unit also includes a weep drainage system with a fluid path defined from the frame corner key, through the corner key fluid outlet, and through the aperture to drain from the fenestration unit.

Abstract: A door having an integrated pet travel door may include a main body member having a door panel. A passageway may be formed in the door panel. The integrated pet travel door may include a pet travel door frame affixed to the passageway, a pet travel door seal attached to the pet travel door frame, a bumper seal connected to the pet travel door seal, and a flap connected to a portion of the pet travel door frame. The flap may pivotally move between an open and closed position. The integrated pet travel door may also include a pair of flap reinforcement members connected to the sides of the flap, and a security panel hingedly connected to the pet travel door frame, that is sized to cover an internal perimeter of the pet travel door frame. The security panel may be moveable between a closed and open position.

Abstract: A two part pressurized hand wheel for letting the user know when a gated pressurized barrier has been set up properly. One part of the hand wheel, when turned, begins to cover up a red portion of the second part. When the red portion is completely covered up, such is the signal to the user that the latch of the gated pressurized barrier is properly aligned with the latch receiver of the gated pressurized barrier.

Abstract: A header assembly and method for installing built-in retractable screens. A header assembly is installed after the structure's framing is completed but before the wall finishes are applied. The header assembly includes opposing end boxes and a header board. The side tracks from the screen unit are installed so that the upper ends open into the bottom of the end boxes. This defines a cavity customized to the selected screen unit. With the header assembly and side tracks in place, the wall surfaces can be applied around them. After the wall surfaces are completed, the screen unit is placed inside the header assembly through an access opening, which is then covered with a cover panel. Thus, the present invention eliminates the need to apply wall finishes around an undefined space, which requires multiple measurements and often results in expensive mistakes in the finished cavity dimensions.

Abstract: An insulated glazing unit may include: a frame including a base, a cross member above the base, and two upright members for connection between the cross member and base; at least two at least partially transparent panes applied to the frame, wherein the at least two partially transparent panes and frame define a closed volume; a light ray shielding device within the closed volume; support means mechanically connected to the cross member and operably associated with the shielding device; wherein the shielding device includes slats and a bottom member, wherein the slats are connected to each other and the bottom member, wherein the shielding device is configured to alternate between a raised position, in which the slats and bottom member are compacted, and a deployed position, in which the bottom member is proximate to the base; stationary guide means at the base; and moving guide means on the bottom member.

Abstract: A simple two-piece easily and inexpensively manufactured cord tightening device and method thereof, the device comprising: a base, cylindrical in form with walls, an interior bottom having ridges, a hollow central column, and a protrusion in the walls with an opening, the protrusion; and a handle, fashioned in the shape of a spool, with a top flange with at least one hole therein, central cylindrical cavity, and bottom flange with ridges on the bottom. The cord tightening device wherein the central cylindrical cavity of the handle fits onto the hollow central column of the base. The cord tightening device may further comprise threading in the hollow central column of the base. The cord tightening device may further comprise a screw. The cord tightening device may further comprise a spring washer. The cord tightening device may further comprise at least two holes in the top flange of the handle.

Abstract: A window covering system that includes an elongated tube configured for a window covering to be wound around the tube, a clutch assembly that includes a pulley and a power spring having a first end engaging the pulley and a second end that is stationary, a limiter assembly, a booster assembly arranged between the clutch assembly and the limiter assembly, a cord arranged at least partially within the clutch assembly, and a wand fixed to the cord to selectively raise and lower the window covering.

Abstract: A rig movement, rotation and alignment assembly. A plurality of lifting jack assemblies are provided, each of the lifting jack assemblies attached to a rig substructure. Each of the lifting jack assemblies has a cylinder housing and a rod movable axially within the cylinder housing. Each rod is engaged with a screw drive in order to rotate the rod with respect to the cylinder housing. Each rod includes a circumferential recess wherein the circumferential recess includes at least one flat segment. A retainer plate attached to each bearing pad is received in and engaged with the circumferential recess and with the flat segment, so that rotation of the rod results in rotation of the bearing pad.

Abstract: A downhole sub has a body defined by a wall extending in an axial direction from a first end to a second end. An inner surface of the wall defines a flow path through the downhole sub and an outer surface of the wall defines an outer diameter of the downhole sub. A compartment extends from the outer surface into the wall to having a depth less than a thickness of the wall. A housing may be removably fixed in the compartment. One or more mobile devices may be disposed in the housing. Each of the one or more mobile devices includes a sensor encapsulated in a protective material. A control element may block an opening of the housing, the control element is made of a dissolvable material configured to dissolve at a predetermined depth in a wellbore and release the one or more mobile devices into the wellbore.

Abstract: A drilling fluid channel structure of a core drilling rig includes a fluid channel activation module, a pressure relief module, a flow diverging and blocking module, a driving fluid channel and a cooling fluid channel. The fluid channel activation module, the pressure relief module and the flow diverging and blocking module are connected sequentially from the rear to the front. The driving fluid channel and the cooling fluid channel are connected at the rear side thereof to the flow diverging and blocking module. The driving fluid channel includes a driving section located between a stator and a rotor of a driving motor. The driving fluid channel is provided with a driving fluid outlet at the front side of the driving section. The cooling fluid channel passes through a layer disposed between an integrity-preserving compartment and an outer barrel.

Abstract: A depth of cut control (DOCC) assembly includes a DOCC element positioned in a retainer pocket along a drill bit blade to limit a depth of cut of one or more fixed cutters. A retention member initially retains the DOCC element within the retainer pocket at a first exposure position. The retention member is configured to release the DOCC element downhole to allow one-way movement of the DOCC element to a second exposure position.

Abstract: A latch system including a plurality of rocker latches, a rocker support, supporting the plurality of rocker latches, and a movement restrictor in operative connection with each rocker latch of the plurality of rocker latches, the movement restrictor allowing or restricting movement of each rocker latch of the plurality of rocker latches relative to the rocker support. A downhole tool including a sleeve movable relative to other portions of the tool, the sleeve having a profile at an uphole end thereof, an actuator runnable into contact with the sleeve, the actuator including the latch. A borehole system including a borehole in a subsurface formation, a string in the borehole, and a latch system disposed within or as a part of the string.

Abstract: An apparatus for mounting on a tubular structure, such as a casing or drill string having a longitudinal axis, that may reduce friction of the tubular structure in a horizontal or deviated well comprises a tubular segment for mounting over the casing or drill string such that the apparatus is freely rotatable about the longitudinal axis. The apparatus also includes a plurality of ridges on an outer face of the tubular segment, the ridges being at an angle to an axial direction of the tubular segment to cause the apparatus to rotate responsive to movement of the apparatus against a wall of a wellbore as the apparatus traverses the wellbore. The raised ridges have a non-uniform height from the outer face of the tubular segment.