Abstract: The disclosure relates to a set of panels comprising a locking device for locking a first edge portion of a first panel to a second edge portion of a second panel. The locking device comprises a horizontal locking device and a vertical locking device. The vertical locking device comprises a separate tongue arranged in an insertion groove of the first edge portion and a tongue groove provided in the second edge portion. In a vertically locked state of the first and second edge portions, an abutment member provided at a longitudinal end portion of the separate tongue cooperates with a stop surface of the second edge portion, and a locking portion of the separate tongue cooperates with the tongue groove.

Abstract: The disclosure relates to a set of panels, such as building panels, comprising a first panel and a second panel and a locking device for locking a first edge portion of the first panel to a second edge portion of the second panel. The locking device includes a vertical locking device. The vertical locking device comprises a flexible tongue arranged in an insertion groove of one of said first edge portion and said second edge portion. The vertical locking device also comprises a tongue groove provided in and extending along the other of said one of said first edge portion and said second edge portion. In a vertically locked state of the first and second edge portions a flexible portion of the flexible tongue cooperates with tongue groove. In the vertically locked state of the first and second edge portions a longitudinal end portion of the flexible tongue cooperates with a stop surface on the other of said one of said first edge portion and said second edge portion.

Abstract: A deck tile assembly is disclosed. The deck tile assembly comprises a frame having at least four sides. The deck tile assembly further comprises a plurality of bars for providing a support structure to the frame. The deck tile assembly further comprises at least two parallel sleepers permanently attached between two opposite sides of the frame and mounted on the plurality of bars. The deck tile assembly further comprises at least two step clip fastening devices, wherein each of the step clip fastening device is mounted on one of the at least two parallel sleepers. The deck tile assembly further comprises at least two supporting members for attaching the frame with the ground surface.

Abstract: A cover device for gratings, having a planar support (1) and a plurality of holding elements (20) which protrude at a bottom side (7) of the support (1), wherein a plurality of elevations (10) and recesses (11) are provided on an upper side (6) of the support (1).

Abstract: Provided are photo-curable foam-forming compositions, methods of making and using them, and a dispenser for injecting the foam-forming composition for the insulation of buildings. In one aspect, the present disclosure provides for a method of insulating a surface, such as that of a building cavity with an insulating foam, the method comprising: irradiating a foam-forming composition with light, the foam-forming composition comprising: a polymerizable component (e.g., based on epoxy or acrylate); an effective amount of a photoinitiator; and a blowing agent; and injecting the irradiated foam-forming composition adjacent the surface.

Abstract: A method for thermal management of a power trowel executable by an on-board logic controller allows operation of the trowel in normal mode in which rotor speed is determined by manual control and in which a sensed temperature of the trowel lies below a high temperature setpoint. In response to the sensed temperature exceeding the high temperature setpoint, the controller switches operation of the power trowel from normal mode to thermal management mode in which a maximum rotor speed achievable by manual control is reduced by the controller in incremental steps to allow the trowel to cool. In response to the sensed temperature reaching a low temperature setpoint, the controller increases rotor speed in incremental steps, and returns operation to normal mode when a desired rotor speed is maintained for sufficient time during which the sensed temperature remains below the low temperature setpoint.

Abstract: A base for use with scaffolding. The base includes side support members and cross members. The side support members have scaffold receiving members provided at ends thereof. The cross members extend between the side support members and are rotatably mounted to the side support members. Wheels are mounted to the cross members. As the cross members are rotated from a first position to a second position, the wheels are moved from an initial position in which the wheels are spaced from a ground or floor surface to a second position in which the wheels are positioned in engagement with the ground or floor surface.

Abstract: A work surface for a vehicle includes a first section, a central section, and a first lock assembly. The first section includes a proximal edge and a distal edge. The first section defines a channel therein. The central section includes a first end and a second end. The first end of the central section is positioned adjacent to the proximal edge of the first section. The proximal edge of the first section is pivotably coupled to the first end of the central section. The first section is movable between a stowed position and a fully-deployed position relative to the central section. The first lock assembly is coupled to the central section. The first lock assembly includes a post that is operable between a retracted position and an extended position. The fully-deployed position of the first section arranges the channel defined by the first section to receive the post.

Abstract: A pre-assembled climbing scaffold that allows executing building construction works with activities related to formwork and concrete placement. The scaffold includes a movement system with cart (70) presenting vertical aligners (71) connected with horizontal aligners (81) (82) located across a gang panel (80), which has an upper guardrail system (90); in front of the gang panel (80) it presents a vertical guardrail (10) connected to a frame (30), where the frame supports a work platform (20) in a horizontal position.

Abstract: A formwork system includes (a) a wallform panel for forming a wall portion; and (b) at least one brace assembly including a pair of vertically spaced apart props pivotably connected to the wallform panel for pivoting of the brace assembly relative to the wallform panel between a storage position, in which the brace assembly lies adjacent the wallform panel, and a deployed position, in which the brace assembly projects from the wallform panel for anchoring the props to a ground surface through a common base plate connected to each prop.

Abstract: The present application relates to the technical field of engineering construction and provides a rebar, a device and a construction method for 3D-printing a concrete interlayer structure. The rebar at least comprises: a body in the form of a chain structure, comprising a plurality of sub-parts mutually spliced, wherein the body is adapted for being sandwiched between two adjacent upper and lower cement-based slurry layers; a rotatable joint arranged between two adjacent sub-parts in such a way that the two adjacent sub-parts are rotatably connected to each other; insertion members, wherein both sides of each of the sub-parts are provided with the insertion members extending away from the center of each of the sub-parts, wherein the insertion member on one side of each of the sub-parts is adapted for being inserted in an upper cement-based slurry layer, and the insertion member on an opposite side of each of the sub-parts is adapted for being inserted in a lower cement-based slurry layer.

Abstract: A support for a safety net proximate an edge of a floor of a building under construction; the support comprising a support post extending between an upper bracket and a lower bracket. According to another broad form of the present invention there is provided a method of installing a safety net proximate an exposed edge of a building under construction; the method includes the steps of: —driving securing bolts into an underside of an adjacent higher floor and into a safety net supporting floor, —securing an upper bracket and a lower bracket respectively to the securing bolts of the higher floor and of the safety net supporting floor, —securing an upper end of a safety net support post to the upper bracket and a lower end of the safety net support post to the lower bracket.

Abstract: A suction pool cleaner for cleaning of a pool surface, the pool cleaner comprising a housing having a debris inlet for suction-drawn flow of water and debris, a first leg assembly and a second leg assembly, each leg assembly being pivotable with respect to the housing, each leg assembly having a rotatable loop track for moving the pool cleaner over the pool surface, the tracks being selectively rotatable in a first direction and an opposite second direction, wherein when the tracks are rotated in opposite directions to one another, the leg assemblies pivot with respect to the housing in opposite directions, thereby lifting the debris inlet away from the pool surface such that suction force between the debris inlet and the pool surface is reduced along with the footprint provided by each track such that less power is required to turn the pool cleaner.

Abstract: A docking system for an automatic swimming pool cleaner includes a dock and a sensor. The sensor may obtain information about the automatic swimming pool cleaner and/or for controlling the APC or other equipment for a swimming pool or spa. A method includes controlling an automatic swimming pool cleaner based on information obtained by a sensor on a dock of a docking system. A pool system may include a light source on a pool light and/or a user device, and the automatic swimming pool cleaner may be controlled based on a light-based signal from the pool light and/or the user device.

Abstract: A docking system for an automatic swimming pool cleaner includes a dock and an underwater-facing camera. The underwater-facing camera ay be provided to monitor the automatic swimming pool cleaner underwater. A method of controlling an automatic swimming pool cleaner may include using information obtained from a camera on a dock of a docking system to control the automatic swimming pool cleaner.

Abstract: A pool cleaner water surface diverter 7 that will break the pool water surface 1 before the pool cleaner 4 reaches the surface, or at least before the suction of the cleaner 4 is able to suck in air. A rim 12 extends beyond a physical envelope of the cleaner, such as being wider than is the cleaner. Ideally the diverter has neutral or near neutral buoyancy in the pool water. A central hub on a pool hose 5 allows rotation of the diverter relative to the hose. compartments/containers may contain a substantially buoyancy neutral fluid or material in water e.g. PVA foam.

Abstract: The present invention provides an improved fire resistant composite pole and a method for producing the same. In accordance with preferred embodiments, the composite utility pole of the present invention includes a composite structure having integrally bonded layers of resin impregnated fiberglass extending along the length of the pole. According to a preferred embodiment, the composite structure of the pole includes an intumescent layer which includes: high temperature mineral fibers, exfoliating graphite, organic binders. and alumina trihydrate (ATH).

Abstract: A utility or marine pole comprises a honeycomb core having an outer surface and a rubber coating on substantially all of the outer surface of the core. The core has a length of from about 12 feet to about 30 feet and a circumference of from about 5 inches to about 15 inches. A bracket for a pole used for supporting wires, the bracket comprising a body being circular in horizontal cross section, means for adjusting the diameter of the body, and a lateral extension having a first end portion supported by the body and an opposed second end portion, wherein the second end portion has an opening for receiving a wire. A railroad crossing section comprising a honeycomb core has a circumferential outer surface and being rectangular in vertical cross section and a rubber coating on substantially all of the outer surface of the core.

Abstract: A decorative container device is disclosed that provides a multipurpose, weatherproof storage container for safely securing mementos at a gravesite. The decorative container device comprises a body component that is configured in a rectangular shape that measures approximately six inches in length and width and one to two inches in thickness. The body component would be a transparent, plastic structure that enables decorations like holiday cards and artwork to be seen through the container's surface. The body component also comprises hook and loop fasteners that allow the body component to be secured to a tombstone. Thus, each container device functions as a suitable way of showing affection to a loved one who has passed through different types of decorations inserted into the container.

Abstract: A stackable burial tower configured to store cremated remains is provided. The stackable burial tower includes a base member and a plurality of intermediate blocks. Each of the plurality of intermediate blocks is configured to stack on the base member or on each other thereby, in combination with the base member, forming a tower. A spinal structure extends from the base member through the plurality of intermediate blocks and a plurality of chamber vessels are configured to store cremated remains, each of the plurality of chamber vessels positioned within one of the plurality of intermediate blocks.

Abstract: An artificial intelligence system control for controlling a plurality of aerial sunshade devices. The aerial sunshade devices have a canopy for providing shade, one or more electrically powered lifting devices, a rechargeable battery power system operatively connected to the at least one lifting device, one or more solar cells operatively connected to the battery power system to charge the battery power system, and a sunshade management system controlling the one or more lifting devices to activate the lifting devices to position the sunshade device. The system control provides sunshade instructions to the plurality of aerial sunshade devices via a traffic and location controller and a wireless network. The sunshade instructions include altitude and geolocation positioning instructions for each aerial sunshade device.

Abstract: A fence bracket kit for aligning and attaching posts and rails for the construction of a fence includes a sidewall bracket fits around a sidewall post and aligns a pair of sidewall rails such that a pair of sidewall portions of a fence are aligned. A corner bracket fits against a corner of a corner post and aligns a pair of corner rails perpendicular to each other, thereby facilitating the perpendicular alignment of a first corner portion and a second corner portion of the fence. A first end bracket and a second end bracket couple to an end rail at the end of a fence. Each of the sidewall bracket, the corner bracket, the first end bracket, and the second end bracket are configured for mounting a light emitter.

Abstract: A wire mesh fence panel includes a top longitudinal portion of a wire mesh disposed inside of a top rail that is connected to a first post and a second post, a bottom longitudinal portion of the wire mesh that is disposed inside of a bottom rail that is connected to the first and second post, a first vertical portion of the wire mesh disposed inside of the first post, a second vertical portion of the wire mesh disposed inside of the second post, top rail links connecting the top rail to the first and second posts, and bottom rail links connecting the bottom rail to the first and second posts.

Abstract: A door lock case has a main body. The main body includes a square tongue therein. The square tongue is connected with an electric control unit and a manual control unit. The electric control unit has a driving member. The driving member is connected with a driven member. The driven member is connected to the square tongue. The electric control unit further has a drive source. The drive source first drives the driving member to move the driven member, so that the driven member moves the square tongue to an unlocked position and then drives the driving member to move to a clutch position, so that the driving member is disengaged from the driven member. In this way, the user can directly open the door to pass through the door after unlocking and can control the movement of the square tongue manually via the manual control unit.

Abstract: A key for an electromechanical locking device includes a key bow, and with the key bow includes a housing and an, in particular single, button. The housing includes an actuating section for actuating the button and a support section for supporting the actuating section, with the actuating section and the support section being configured in one piece with one another.

Abstract: A lock includes a housing assembly, an actuatable lock assembly and a latching assembly. The actuatable lock assembly is positionable in at least a closed orientation and an open orientation. The latching assembly further includes a latch, a cam and a motor. The latch, having a cam profile, is movable between a locked position and an unlocked position. In the locked position, the actuatable lock assembly is maintained in the closed orientation. In the unlocked position, the actuatable lock assembly is positionable into an open orientation. The cam is rotatably mounted and has a first follower configured to intermittently coact with the cam profile of the latch, to, in turn, move the latch between the locked position and the unlocked position. The motor is coupled to the cam. Actuation of the motor causes rotation of the cam, resulting in movement of the latch between the locked and unlocked positions.

Abstract: A door-locking module for a door of a household appliance includes a housing; a printed circuit board (PCB), received within the housing and further includes at least one first actuator switch adapted to open and close a predetermined first circuit of the PCB. A locking pin is configured to move between a locked position, affecting the door into a locked state, and an unlocked position, affecting the door into an unlocked state. An actuator is operably coupled to the locking pin so as to controllably move the locking pin between the unlocked position and the locked position. A locking ring is operably coupled between the actuator and the at least one first actuator switch and includes a trigger member adapted to operably engage with the signal actuator, and at least one cam guide adapted to cooperate with a corresponding cam follower of the locking pin.

Abstract: An electromechanical door lock actuation device with a motor for rotation of a connector-receiver that has two jaws for gripping a door knob or key when the device is installed on a door blade, wherein the width between the jaws is adjustable for a tight fit against the knob or key.

Abstract: A door handle device for a vehicle includes a handle base fixed to a door of a vehicle, and an operation handle rotatably coupled to the handle base. The operation handle includes a coupling protruding portion that is provided at an end portion on a rotation center side of the operation handle. The handle base includes an elastically deformable elastic piece that is adjacent to the coupling protruding portion. Movement of the operation handle toward a rotation tip end is restricted by elastically engaging a stopper protruding portion formed on any one of the coupling protruding portion and the elastic piece with a stopper fitting portion formed on the other by using elastic deformation of the elastic piece. Movement of the elastic piece in a disengagement direction of the stopper protruding portion is restricted by a clip mounted on the handle base.

Abstract: Described is a vehicle door actuating apparatus (100). The vehicle door actuating apparatus (100) includes an actuating surface (106), a sensor (140), such as an inductive sensor or switch, and a mechanism for transmitting a compressive force applied by a user to the actuating surface (106) into a movement that is detectable by the sensor. The mechanism includes a first component (111) or a first component group on which the switch (140) is at least partially fixed and a transmission element (120) that is pivotally arranged on the first component (111) or the first component group. The transmission element (120) is pivotable between a home position in which the sensor (140) is not triggered by the transmission element (120) and an actuating position in which the sensor (140) is triggered by the transmission element (120). The transmission element (120) is movable relative to the actuating apparatus (102).

Abstract: A vehicle door system includes doors with a door module attached to a hinge module, which is attached to the vehicle body. The door module includes a latch mechanism configured to engage a striker pin of the vehicle body, with a pawl that pivots to accommodate a misalignment with the striker pin during a door closing operation, with the latch mechanism shifting following engagement with the striker pin. A door check mechanism includes a permanent magnet and a steel plate. Activation of the permanent magnet shifts the steel plate from a closed position to an open position permitting the hinge module to move from a locked position. An interface between doors includes a primary and secondary seal each having a constant cross section, with filler pieces disposed between the door and the secondary seal along a portion of the interface.

Abstract: A plastic housing for a motor vehicle component and to a method for mounting a motor vehicle component having a plastic housing, a housing opening closed by at least one plastic film and a mechanism arranged in an interior of the housing, in which the mechanism is mounted, the housing is then closed and the mechanism is subsequently actuated through the housing opening, and in which the housing opening is sealed again after the actuation.

Abstract: A door lock assembly includes a door trim including a through hole, and a locking device that is disposed on a vehicular exterior side with respect to the door trim and locks and unlocks a vehicular door. The locking device includes a lock knob holder and a door lock knob. The lock knob holder has a tubular shape and two holes at two opposite ends and one of the two holes is adjacent to the through hole and another one is an insertion hole. The door lock knob has a bar shape and is disposed in the lock knob holder so as to be movable between an unlocked position and a locked position. The door lock assembly further includes an insertion guide portion disposed adjacent to the insertion hole and includes a guide surface having a width that increases as it extends away from the insertion hole.

Abstract: A device for identifying a position of a grip member of a vehicle handle includes a cam rotatably movable inside the device around an axis fixed relative to the grip member. The cam is rotatably secured to a lever, which is rotatably movable around the axis, so that an angular position of the cam around the axis is directly related to an angular position of the lever around the axis. The angular position of the lever is also mechanically related to the position of the grip member. The device includes at least one switch secured to the handle and complementary to a member of the cam, so that the at least one switch is configured to be in electrical contact with the member of the cam when the angular position of the cam is equal to one or more predetermined angular positions around the axis.

Abstract: A driving device including a transmission mechanism, a lever handle, and a locking mechanism. The transmission mechanism includes a mounting housing and a movable member. The mounting housing is formed with a sliding groove, and the stopper edges are respectively disposed on the tops of two sidewalls of the sliding groove. The movable member is configured to pass through the sliding groove. The bottom wall of the movable member is provided with a transmission rack. The lever handle includes a handle, a mount, a connection shaft, and a second fastener. An end of the handle is formed with a second mounting groove that is provided with an internal tooth portion. The mount is disposed in the second mounting groove and can be connected to a section bar member. The connection shaft is rotatably disposed in the mount and includes a first external tooth portion and a second external tooth portion.

Abstract: The present invention relates to a device (4) for closing a door (1) which is rotatably constrained to a relative anchoring structure (2) and movable between a closing position and a maximum opening position, said anchoring structure (2) being either a fixed structure or a further door.

Abstract: A device for preventing a human body from being jammed by using a change in capacitance, includes: a sensor unit which detects a change in capacitance corresponding to a gap between an external conductor pressed by a human body approaching a driven object and an internal conductor; a signal processing unit which compares a detection signal of the sensor unit with a reference value and outputs a jamming occurrence signal indicating the human body being jammed in the driven object; a motor driving unit which drives a motor to move the driven object; and a control unit which controls the motor driving unit to stop or move the driven object in the opposite direction when the jamming occurrence signal is received from the signal processing unit, thereby preventing a safety accident caused by the human body being jammed.

Abstract: An information processing apparatus includes: an acquisition unit configured to acquire an image captured by an imaging unit provided in a hinge door of a vehicle and a door opening angle indicating an angle at which the hinge door is opened from a closed state when the image is captured; a correction unit configured to correct an error of the door opening angle acquired by the acquisition unit; and a specification unit configured to specify a three-dimensional position of an obstacle with respect to the vehicle using corresponding points of the obstacle present around the hinge door, which are determined based on a plurality of images captured by the imaging unit from a plurality of viewpoints with different door opening angles acquired by the acquisition unit, and the door opening angles corrected by the correction unit and associated with the respective plurality of images.

Abstract: A fenestration unit is disclosed. In various examples, the fenestration unit includes a plurality of panels, including first and second panels. In some examples, one or more of the plurality of panels is configured to slide relative to a frame of the fenestration unit to provide an opening in the fenestration unit. In various examples, each of the first and second panels are also configured to be pivoted relative to the frame such that the first and second panels can be hinged or otherwise pivoted open to increase the size of the opening in the fenestration unit.

Abstract: A door includes a door frame with abutment element, a door leaf movable from open to closed positions, a seat, and a guillotine accommodated in the seat and passing from a retracted to an extended position along a sliding direction. A first magnet, integral with the guillotine, exerts a magnetic attraction of the guillotine into the seat. A second magnet, separated from the first magnet, is integral with the guillotine. A second magnet interaction element, separated from the first and second magnets, and interacting with the second magnet, is integral with the abutment element to attract the second magnet and exert an extraction on the guillotine, the second magnet extracting the guillotine from the seat only when the second magnet faces the second magnet interaction element or when the sliding direction intercepts the second magnet interaction element, the first magnet exerting a lower magnetic action than the second magnet.

Abstract: An apparatus provides for the flexible adjustment of the position of the windows, as well as for the ability to change the light transmission area of a single window, without wasting too much space. The apparatus can transform windows into completely opaque walls, for example, to achieve partial or complete light blockage by moving several wall panels hidden inside the sill up and down to specified positions. A set of push plates inside the sill can be used to displace the wall panels horizontally and a set of lifting plates on the window frame can be used to move the wall panels up and down along a track. At the same time, after selecting the specified position, the corresponding position can have a stick to push the wall panel into the specified position and tighten and fix the wall panel in the desired position.

Abstract: In various embodiments of the present disclosure, a fenestration apparatus is provided, including: a glazing comprising a LC panel having: a first glass layer; a second glass layer, and a liquid crystal cell therebetween; a frame, configured perimetrically around a corresponding perimetrical edge of the LC panel; and an attachment member configured to the frame, wherein the attachment member is configured to be removably fixable to an existing window, wherein the attachment member is configured to define a gap between the frame, the at least one LC panel, and the existing window.

Abstract: A multi-glazed panel includes: a first glass sheet having a first face placeable to face outdoors and a second face opposite to the first face; a second glass sheet having a third face facing the second face and a fourth face opposite to the third face; and a plurality of columns in contact with the second face and the third face, wherein at least one of the first face, the second face, the third face, or the fourth face has (i) a reflective area provided with at least one reflective film serving to reflect ultraviolet light and (ii) a transmissive area serving to transmit ultraviolet light, and the plurality of columns include at least one column having an area that coincides with the at least one reflective film as viewed in a direction perpendicular to the first face.

Abstract: An electric curtain is provided which comprises a top rail, a bottom bar, a curtain body, a rope winding assembly, a drive device and an end seal; the top rail and the bottom bar are disposed in parallel up and down with the curtain body in between; the top rail is provided with opposed first end and second end; the end seal is disposed at the first end of the top rail and the drive device at the second end; the drive device is in transmission connection with the rope winding assembly; the drive device comprises a motor part and a power supply part; the motor part is disposed inside the top rail and connected to the rope winding assembly in a transmission manner; the power supply part is disposed outside the top rail; the motor part and the power supply part are disposed in parallel inside and out.

Abstract: A roller shade system, a roller shade system for all types of glass or transparent windows, a roller shade system for bi-fold doors, a roller shade system for sliding doors, a roller shade system for rolls, a roller shade system for backdrops, process, and method of use are presented. The roller shade system comprises a roller tube, a fabric operably connected to the roller tube. The roller shade system further comprises a clutch connected to the roller tube and a bead chain or cord connected to the clutch for rotating the clutch, and thus the roller tube. The bead chain or cord includes a plurality of raindrop shaped actuators or teardrop shaped balls. The actuators are configured to rotate the clutch bi-directionaly. This arrangement facilitates the user in instantaneously recognizing or identifying which end of the cord needs to be pulled for moving the fabric upward and/or downward.

Abstract: In some embodiments, a multipurpose ladder has a first inner section. The ladder has a first articulated hinge and a second articulated hinge. The ladder has a second inner section. The ladder has a first outer section. The ladder has a first locking bar. The ladder has a second outer section. The multipurpose ladder may have a plurality of brackets disposed about outer rails of the outer sections. The brackets provide support to each of the outer rails and strengthens them against bending forces so the rails can be thinner and of lighter weight. The ladder may have an ANSI duty rating of 1 A or an ANSI duty rating of 1 AA.

Abstract: Provided is a two-stage reverse-torque bent screw orientation tool. An existing bent screw orientation technology has the technical problems of large friction resistance, difficult control of a borehole track, a low drilling speed and the like, and restricts economic, safe and long-acting development of oil and gas. In order to solve the above problems, the two-stage reverse-torque bent screw orientation tool is invented and composed of a first-stage clutch mechanism and a second-stage clutch mechanism, and the first-stage clutch mechanism and the second-stage clutch mechanism are both composed of a battery, a battery compartment, a pressure sensor, an electromagnetic valve, a body, a plug, a piston, an outer tooth cylinder, an inner tooth cylinder, a transmission cylinder, a connecting cylinder, a bearing, a limiting cylinder, a lower joint, a thrust bearing, a battery compartment, a circuit board, a cover plate and the like.

Abstract: A reaming tool forms a hole in the ground with a sidewall and a floor, and a deepened channel around the perimeter of the floor adjacent to sidewall. Fluid is provided during excavation to form a slurry to hold the sidewall and prevent cave-in of material into the hole. After the hole reaches a desired depth, the reaming tool is removed, and a shoring wall is inserted into the hole through the slurry and seated in the perimeter edge channel. The shoring wall includes vertical tubes for connection to a dewatering machine. Then, the slurry can be vacuumed from the hole, while the dewatering machine keeps the empty hole as dry as possible. Extending the shoring wall into the channel beyond the floor of the hole helps seal flow of water from entering the hole.

Abstract: A drill bit for cutting formation comprises a bit body, a plurality of cutters, and a plurality of blades with pockets to accommodate the cutters, respectively. Each of the plurality of cutters has a substrate, an ultra-hard layer, an inclined surface on the top of the ultra-hard layer, wherein the inclined surface slants downward from a cutting edge to a trailing edge. The cutter can improve cutting efficiency and service life.

Abstract: Described herein are multi-tool boring systems and methods of operating such systems for tunnel boring and/or underground pipe installation. A multi-tool boring system is specially configured for fast installation and replacement of various tools, such as a pneumatic rammer and a hydraulic drive, enabling different operating modes of the system, e.g., pilot tube installation, auger boring, pipe ramming, pilot pullback boring, static pipe bursting, and non-contact boring. In some examples, a multi-tool boring system comprises a track assembly, a jacking frame slidably supported on the track assembly, and an impact plate assembly, which is attached to the jacking frame and comprises an impact plate and shock absorbers between the impact plate and the jacking frame. The impact plate comprises an impact plate opening configured to engage and support a pneumatic rammer. The rammer can be replaced with a hydraulic drive with a shaft protruding through the opening.