Abstract: A power tool (100), such as a chainsaw, comprising means (230) for driving said power tool (100) and a controller (210). The power tool comprises a movement sensor (220) and the controller (210) is configured to receive a signal from said movement sensor (220), determine if said signal is a signal indicating a movement, determine a time wherein no signal indicating a movement is received, determine if said time exceeds a time period, and if so, disable said driving means (230).

Abstract: Apparatuses for constructing displacement aggregate piers are disclosed. In one example, a mandrel is provided comprising a tamper head that has cutting teeth on the leading edge thereof. In another example, hydrojet nozzles are provided within one or more of the cutting teeth of the tamper head. In yet another example, the mandrel comprises grout tubes (or grout injection lines) and/or grout inspection lines. In yet another example, the mandrel and/or tamper head can comprise cutting teeth, hydrojet nozzles, grout tubes (or grout injection lines), grout inspection lines, and any combinations thereof.

Abstract: A drill attachment for engagement and actuation of a drill apparatus having a bifurcated frame defining a first shaft and a second shaft operatively engaged to the drill apparatus at first and second engagement points is disclosed. A handle is pivotally engaged to the first shaft and is operatively coupled to a trigger actuator located along the first shaft through a trigger cable operatively engaged to a trigger actuator the distal end of the first shat that permits remote actuation of the drill apparatus. The trigger actuator includes a pivotable rocking arm having an actuator pad in selective engagement with the drill trigger such that actuation of the handle by the user pivots the rocking arm in a manner that causes the actuator pad to engage or disengage the drill trigger when operating the drill apparatus.

Abstract: Generally, the disclosed technology regards a novel auger annulus adjoinable to a shell useful in encapsulating structural piles to below the earth's surface. The disclosed technology further regards a jacket and auger annulus system useful in encapsulating structural piles. Also provided is a method of positioning a first fiber-reinforced polymer (FRP) circular-cylindrical shell at and about the exposed base of a structural pile, thereby encapsulating the pile to below the earth's surface using a jacket and auger annulus.

Abstract: A rotation control system may be provided for a material handling machine. The rotation control system may include a boom and a work tool attached to the boom. A swing motor may be capable of swinging the boom and the work tool. A work tool motor may be capable of rotating the work tool relative to the boom. An input device may generate a first signal indicative of a desired swinging of the boom and a second signal indicative of a desired rotation of the work tool. A controller may be in communication with the input device, the swing motor, and the work tool motor. The controller may be capable of actuating the work tool motor based only on the second signal during a first mode of operation and may be capable of actuating the work tool motor based on swinging of the boom during a second mode of operation.

Abstract: Disclosed are drill assembly attachments having a handle, a drill mount, and a throttle. The throttle is positioned with respect to the drill mount and the handle such that a first portion may be actuated by a user with a hand that is grasping the handle. The drill assembly attachment receives a power drill assembly such that the throttle adjustably engages a trigger of the drill assembly. The drill assembly attachment receives a rotatable device, such as an auger or other tool. Also disclosed is a method of using a power drill assembly and the drill assembly attachment.

Abstract: A center-pillared full-face shaft drilling machine comprises a center pillar (1), device platforms (2), a derrick (3), a driving system (4), a personnel and material conveying system (5), a well wall support and protection system (6), a safeguard system (7), and an operation chamber (8). The derrick (3) is mounted at a wellhead. The operation chamber (8) is disposed on the derrick (3). The center pillar directly leads from the well bottom to the wellhead and is connected to a slide rack comprised in the derrick on the ground. The driving system (4) is mounted at the front end of the center pillar (1) of a device. The multiple device platforms (2) are sequentially mounted on the center pillar (1) of the device from rear to front. The personnel and material conveying system (5) and the safeguard system (7) are separately mounted on the device platforms at the rear of the driving system (4) and on the ground.

Abstract: Embodiments of an offshore drilling rig including—a drill floor deck having a hole defining a first well center;—a first mast upwardly extending relative to the drill floor deck;—a first hoisting system supported by the first mast and configured for hoisting and lowering tubular equipment through the first well center; wherein the load bearing structure of the first hoisting system is displaced from and located on a first side of the first well center;—first pipe handling equipment for moving tubular equipment to the first hoisting system so as to allow the first hoisting system to hoist or lower the tubular equipment through the first well center; wherein the first pipe handling equipment is operable to move tubular equipment at least partly underneath the load bearing structure and/or through a gap formed in said load bearing structure.

Abstract: Provided are single and multi-stage hand-portable directional drilling devices designed to drill through space underground, particularly for drilling channels underground from within an interior building space. Also provided are improvements in a drill head providing means for removing or preventing clogging of a drill tip lubricant channel or fluid hole.

Abstract: A drill rig includes a frame and a pair of cylinder rods provided laterally spaced relative to each other. The pair of cylinder rods is configured to extend and retract relative to the frame along an axial direction. The drill rig includes a carriage unit mounted to the frame. The carriage unit includes a pair of slide blocks laterally spaced relative to each other. Each of the pair of slide blocks includes an axial channel therein. The carriage unit includes a support member provided slidably within each of the axial channels. The carriage unit includes a center member coupled to and provided between the support members. The center member is configured to reinforce the support member. The carriage unit includes a slide rail longitudinally spaced relative to the support member. The drill rig includes a drilling unit slidably mounted on the slide rail.

Abstract: A release tool is provided for an end effector with a pair of jaw members and a drive beam assembly configured for axial movement through the pair of jaw members. The release tool includes an elongate body member, a gripping assembly, and a release bar. The gripping assembly is secured to the elongate body member and is configured to secure the elongate body member to the end effector. The release bar is supported by the elongate body member and is axially movable relative to elongate body member. The release bar is configured to engage a beam of the drive beam assembly to retract the beam to a proximal position when the beam is disposed in a position distal of the proximal position.

Abstract: A drilling bucket for drilling a bore hole in the ground including a hollow cylindrical body and at least one cutting tool arranged at a lower side of the hollow cylindrical body for cutting soil material. The hollow cylindrical body has a lower opening for receiving soil material cut by the at least one cutting tool. For guiding the hollow cylindrical body in the bore hole an upper guiding device is provided which is arranged above the hollow cylindrical body and fixed to the hollow cylindrical body. The upper guiding device is configured to abut on a side wall of the bore hole.

Abstract: A drill assembly attachment having a handle, a drill mount, and a throttle. The throttle may have a first portion and a second portion rotationally engaged with the first portion such that the second portion is rotationally actuated in response to linear actuation of the first portion of the throttle. The throttle is positioned with respect to the drill mount and the handle such that the first portion may be linearly actuated by a user with a hand grasping the handle. The drill assembly attachment receives a drill assembly such that the throttle adjustably engages a trigger of the drill assembly. The drill assembly attachment or the drill assembly receives an auger or other tool and the drill assembly attachment with the drill assembly and auger or other tool is used in a method of rotating the auger or other tool.

Abstract: A manifold directs the flow of drilling mud from a drilling rig. A longitudinal tubular body has a first end and a second end, such that the longitudinal tubular body is supported by at least two supports of a platform. The platform can support a monorail that is parallel to the longitudinal tubular body, so that it is five feet of the longitudinal tubular body. The longitudinal tubular body can have at least three side directed input ports so that the ports are adapted to receive a mud pipe for attachment. Each of the three side-directed input ports can face substantially towards and above the monorail to provide unobstructed lateral attachment of a mud pipe to the longitudinal tubular body.

Abstract: A control system for an air driven drill is described, wherein the control system is of the kind that provides a feed stroke to a drill bit. The system comprises an interrupt line so that compressed air fed to a feed chamber is also fed to a clamp chamber whereby the unbalanced force on the feed piston becomes balanced so as to stop the feed stroke. An adjustable frequency generator is provided to impose a pulsating pressure variation in an air pressure supply. During a feed stroke under which compressed air is fed to the feed chamber, air fed to the clamp chamber via the interrupt line is caused by the adjustable frequency generator to have a pulsating pressure, so that the feed stroke is caused to be stopped for a first period, then resumed for a second period, to provide a periodically interrupted feed stroke.

Abstract: A drive arrangement in a pneumatic power tool includes a pneumatic motor with an output shaft, and a spindle for mounting a cutting element and which externally includes both a thread and an axial groove. A drive rotation of the spindle is driven by a drive gear that is engaged with the axial groove on the spindle and that is drivingly connected to the output shaft so as to rotate at a constant speed with respect to the output shaft. A feed gear is threaded upon the spindle and may be rotated with respect to the spindle in order to advance and retract the spindle. The feed gear is driven by one intermediate feed gear which is interchangeably drivingly connectable to the output shaft via a first and a second gear connection, respectively, so as to advance or retract the spindle.

Abstract: A tool feeding mechanism for a tool driving device includes a cylinder mechanism, a positioning mechanism, and a holding mechanism. The cylinder mechanism moves a tool rotation driving device to hold and rotate a tool, in a tool axis direction on an exterior of a cylinder tube using power of a piston. The positioning mechanism is connected to the cylinder tube side of the cylinder mechanism either directly or indirectly in order to position the cylinder mechanism relative to a workpiece. The holding mechanism holds the tool rotation driving device such that the power of the piston in the cylinder mechanism is transmitted to the tool rotation driving device.

Abstract: A machining apparatus has a machine frame having a vertical front wall and a pair of vertical side walls extending generally perpendicularly rearwardly from the front wall and a cross slide vertically displaceable on the front wall. A first holder is horizontally displaceable on the cross slide, and respective carriages horizontally displaceable generally perpendicular to the front wall on the side walls carry a mount between and pivotal in the carriages about a horizontal axis generally parallel to the front wall. A second holder is carried on the mount. One of the holders is adapted to hold and rotate a workpiece and the other of the holders to hold a tool. A drive is connected to both of the carriages for synchronously displacing same and thereby aligning the workpiece in the one holder with the tool in the other holder.

Abstract: An apparatus for machining a workpiece with a tool has a columnar housing having an upright front face and a pair of upright and parallel side walls extending horizontally rearward from the front face, a carriage movable at least vertically on the front face carries a first holder for the workpiece or the tool. A U-shaped frame juxtaposed with the housing front face has two rigid arms each extending rearward adjacent the housing side walls with interfitting guides between each of the arms and the respective side wall enabling horizontal movement of the frame toward and away from the front face. A second holder on the frame and in front of the front wall holds the tool or the workpiece and is engageable with the workpiece or the tool, respectively, in the first holder.

Abstract: A downhole assembly able to generate a vibrational output reliant upon a fluid feed drive to cause relative rotation extending magnetic arrays and thereby a relative longitudinal vibration causing reciprocation.

Abstract: A drive apparatus for a drill stem of a de-coking system is disclosed. The apparatus includes a feeder as water supply to the drill stem. The drill stem is rotatably driven by a rotational drive which includes a motor and a first and second gear box. The second gear box has an output gear which is meshed with a large gear which is connected to an outer gear rim of the feeder. A skirt envelops the gear which is formed by an output gear and by the second motor driven gear box and the gear which is connected to the feeder completely. A lower side of the skirt is open.

Abstract: A drive unit has an output subject to changing loads, where the drive unit consists of fixed and moving parts connected to a power source. The output of the drive unit is controlled in cycles, and for ascertaining the load in a given cycle, the time period required for changing the position of the moving part of the drive unit, or for changing the position of the moving part of the equipment in mechanical contact with the moving part of the drive unit, from one predefined position to another predefined position is measured, whereby the input required in the next cycle is determined according to the time period ascertained in at least one preceding cycle. Where the drive unit is an electric motor, the input required in given cycle is also determined according to electric resistance of the electric motor ascertained in at least one preceding cycle.

Abstract: An electric tool includes a housing accommodating a motor, and a break device and an operational member to turn on and turn off a drive switch of the motor. The brake device includes a brake plate fixed to an output shaft of the motor, a brake member is capable of moving toward and away from the brake plate during rotation, and an urging unit urging the brake member toward an abutment position where the brake member abuts on the brake plate. The operational member is provided with a press member that comes into abutment on the brake member through an operation of turning on the drive switch of the motor and rotates the brake member in such a rotational direction as to move away from the brake plate against the urging of the urging unit.

Abstract: A handling system (1?) is for drilling equipment (200) of the ground, in which the drilling equipment (200) slides along a support tower (101, 501) fixed or movable with respect to the ground. The handling system (1?) includes at least one linear actuator (3, 3a, 3b) for handling the digging equipment. The linear actuator (3, 3a, 3b) being temporarily movable and releasable with respect to the tower (101, 501).

Abstract: The invention relates to a garden tool having at least one working blade for performing a cutting operation. The garden tool includes a user control part for user activation of the garden tool. A drive unit generates a working motion of the at least one working blade which has a blade region for a linear and/or oscillating working motion of the at least one driven working blade An electronic unit acts upon the drive unit with at least control and/or regulating signals, and an operating voltage unit furnishes an electrical energy supply to the electronic unit. It is proposed that the drive unit includes at least one excitation actuator having a volume of excitation-active material, which actuator is electrically supplied in operation by the operating voltage unit and is controlled or regulated by the electronic unit.

Abstract: The object of the invention is to provide a drilling device which is compact and has good sliding properties. The object is achieved by an upper beam for use with a lower beam in a telescopic feeder for a drilling device for rock drilling. The upper beam extends along a longitudinal axis and has a generally U-shaped cross section comprising a bottom wall and a first and a second side wall. Each side wall has an inward surface and an outward surface. The upper beam comprises a cooperating member intended for sliding cooperation with the lower beam. The cooperating member comprises an attachment structure extending outwardly from each outward surface of each side wall. Each attachment structure is intended for fixed mounting of a crank block bracket, which crank block bracket faces the outward surface of each side wall.

Abstract: The invention relates to an electrical machine tool, particularly a hand machine tool, having a contrast detection device, an analysis unit, and at least one sensor provided for capturing a surface of a work piece. According to the invention, the analysis unit is provided for detecting a differentiation of the surface from an at least partially automatic guide using data captured by means of sensor.

Abstract: A power tool may include an electronically commutated motor such as, for example, a brushless DC permanent magnet motor with a rotor having internally mounted magnets and/or cavities filled with air or other non-magnetic materials. A control system may be used to control the motor in a manner that implements field weakening when the speed of the motor increases beyond its rated motor speed, or when the torque demands on the motor continue to increase after the maximum power output of the motor is reached. The field weakening may offset the growing back EMF and may enable a constant power and constant efficiency to be achieved by the motor over a wide speed range, rather than at just a single predetermined operating speed. Pulse width modulation control of the motor may be used up until the motor reaches its maximum power output.

Abstract: A device for the support and linear movement of a rotohammer. The device includes an elongated shaft, pole or rail having a first end, and a second end, the latter proximate to an object to be drilled and having a longitudinal axis. An L-shaped bracket is provided having a first leg slidably mounted on the elongated shaft, pole or rail along its longitudinal axis and a second leg projecting perpendicularly from the first leg, the L-shaped bracket being sized to receive and support the rotohammer. A handle is pivotable on the elongated shaft, pole or rail and a linkage bridging the handle and L-shaped bracket is movable by movement of the handle such that in moving the handle from a first at rest position to a second position, the L-shaped bracket is caused to move along the elongated shaft, pole or rail toward its second end for extending the rotohammer in the direction of the object to be drilled.

Abstract: In a device for guiding and tensioning supply lines for working tools movable along a straight guide, e.g. supply lines of a hydraulic hammer drill on an advance mounting, the advance of the working tool is implemented by means of a revolving transport chain driven by a sprocket wheel, and the supply line(s) are guided between the connections on the fixed guide and the connections on the working tool by a tension roller which causes a deflection about 180° and is movable in advance direction downstream the working tool conjointly therewith in the same direction but at half the advance speed, wherein the tension roller is slidably guided on the guide for the working tool transversely to its rotation axis, and wherein a pinion engages the transport chain for driving the movement of the tension roller and interacts with a fixed chain on the opposite side.

Abstract: A stroker tool for providing an axial force in an axial direction of a downhole tool. The stroker tool has a pump, a driving unit for driving the pump, and an axial force generator. The generator has an elongated piston housing having a first and a second end, and a piston provided on a shaft, and the shaft penetrates the housing for transmitting the axial force to another tool. The piston is provided in the piston housing so that the shaft penetrates the piston and each end of the piston housing and divides the housing into a first and a second chamber, and the first and the second chamber are each fluidly connected to the pump via at least one duct so that the pump can pump fluid into one chamber by sucking fluid from the other chamber for moving the piston within the housing, and thereby moving the shaft back and forth.

Abstract: A telescopic feed beam for a rock drill includes a lower beam and an upper beam arranged to move with respect to each other in the longitudinal direction. The cross section of the lower beam is such that there is a groove-like open space at the bottom of the lower beam and a transfer cylinder between the lower beam and the upper beam is mounted in the groove.

Abstract: Systems and methods for drilling auxiliary holes such as conductor holes, ratholes, and mouseholes useful in drilling operations. The systems and methods include the use of a portable drilling apparatus that is selectively mountable on a rig's drill floor and is removable after an auxiliary hole has been drilled. A movable drive unit is pulled down by a cable system forcing the drive unit down and thereby facilitating drilling of the auxiliary hole.

Abstract: The invention relates to a construction apparatus comprising a mast, a slide guided in a longitudinally displaceable manner on a front side of the mast, at least one drive chain for the slide arranged longitudinally to the mast and at least one drive pinion supported on the slide in a rotatable and drivable manner, which is engaged with the drive chain. Provision is made for the drive chain and the drive pinion to be arranged in front of the front side of the mast.

Abstract: The invention provides an apparatus (2) for imparting relative movement between an oscillating member and a rail (4). The apparatus (2) comprises a support (6) in the form of a housing providing a fulcrum (8) and biasing means (10) to bias a lever (18) about the fulcrum (8). The lever (18) has an engaging formation (20) spaced apart along its length from the fulcrum (8). The engaging formation (20) is configured to selectively grip and release the rail (4). In one embodiment of the inventions application, the housing (6) is secured to a percussion rock drill and the rail (4) secured in a position to allow drilling as desired. The lever (18) supports the rock drill above the rail (4). The oscillation of the drill and housing causes the lever (18) to pivot about the fixed fulcrum (8) against the bias of the biasing means (10). This disengages the grip of the engaging formation (20) and the drill is advanced along the rail (4).

Abstract: A ground rod driver that uses an industry standard connecting plate to physically attach the driver to Skid Steer type equipment. The driver has a hydraulic, impact driving hammer connected to an alignment beam that enables vertical movement of the hammer. Operation of the driving hammer, as well as up and down motion of the driving hammer is derived from the accessory hydraulic system and connections of the Skid Steer. Simple operating control valves, flow control valve and hydraulic hoses, and an operating station are mounted directly to the driver.

Abstract: A drill slide (1) for a drilling apparatus, said slide (1) adapted to slidably support a drifter (6), said slide (1) comprising a telescopic shaft (2) having a first elongate member (3) telescopically slidable with respect to a second elongate hollow member (4); a first rail mounted to or integral with said second elongate hollow member (4) upon which said drifter (6) travels along; and wherein a second removable rail (7) is adapted to be fitted adjacent to said first elongate member (3) in an extended configuration, where said second rail (7) is end to end with said first rail (5) thereby allowing said drifter (6) to slide along said first (5) and second rails (7).

Abstract: The rock drilling rig comprises a first control unit (8) arranged on a carrier (1) and a second control unit (9) arranged to a rock drilling apparatus (4). The first control unit (8) and the second control unit (9) communicate with each other by means of a first data communications link (10). The rock drilling apparatus (4) has one or more sensors (11, 12, 15), the measuring results of which are processed in the second control unit (9) and only then transmitted to the first control unit (8) that controls actuators regulating the operation of the rock drilling apparatus (4). Correspondingly, the rock breaking machine, such as a breaking hammer, comprises one or more sensors (11, 12, 15) and a control unit (9).

Abstract: The striking mechanism has a hammer barrel (3), which has at least one control opening (23) through which, in an idle position, the air can escape from the hammer barrel (3), and which in a striking position is closed by a covering (25) that prevents the escape of air. To achieve the greatest possible sealing off of the at least one control opening (23) and thus high efficiency of the striking mechanism, the covering (25) is molded from an elastomer.

Abstract: In the field of borehole creation there is a need for a reciprocable impact hammer with a tool that is rotatable while under load. A reciprocable impact hammer (10) for use in a downhole location comprises a tool support member (11); a hammer member (12); a jack mechanism (13); a connector member (14); and a transmission (16).

Abstract: The invention provides a bolting installation apparatus comprising a base having a pair of parallel cylindrical rods held between two end plates; an intermediate carriage slidably mounted on said rods; a drilling unit carriage having at least one first rod and at least one second rod spaced apart from said first rod; a drilling unit slidably mounted on said second rod and said intermediate carriage slidably receiving said first rod of said drilling unit carriage; at least one moving means to move each of said base, said intermediate carriage and said drilling unit carriage relative to each other.

Abstract: A carriage system supports an impact or driver tool. The carriage system has a support member that extends upwardly from a base platform. Support arms are rotatably connected to the support member at medial portion of the arms at different elevations above the support member. A proximal end of each of the arms rotatably connects to a weight, while a distal end of each of the arms is adapted to rotatably connect to the driver tool. The weight is located on an opposite side of the support member from the driver tool when the driver tool is attached. When the weight is moved in a vertical direction, the arms rotate in combination with the movement of the weight. The arms rotate about their respective medial connections, thereby forcing the ends that rotatably connect to the driver tool to move in a vertically opposite direction than the weight.

Abstract: The invention concerns the work units for automatic machine tools in which a spindle (5) moves in translation and rotates with respect to a work axis (Z). More particularly in these units, in order to obtain the rotation/translation of the spindle, the latter is housed in a sleeve (3) that slides along the work axis (Z), with respect to which it is however free to turn.

Abstract: A thrust system for a horizontal directional drill is provided. The thrust system includes a drill boom having a drive sprocket positioned at the first end thereof and a driven sprocket positioned at the second end thereof. A carriage for supporting the horizontal drill is slidably received on the drill boom. The carriage includes idler sprockets positioned between the drive sprocket and driven sprocket in the drill boom. A serpentine chain extends about the drive sprocket, the driven sprocket and the idler sprockets in order to provide greater thrust and pullback of the drill at given torques. Rotation of the drive sprocket in a first direction draws the carriage towards the first end of the drill boom, and rotation of the drive sprocket in a second direction draws the carriage towards the second end of the drill boom.

Abstract: An earth boring machine 10 with a frame and a linearly movable slide 22 on the frame has an apparatus for holding and rotationally driving a boring rod 24, and a forward feed drive for moving the slide parallel to the boring direction. The machine with especially small space requirement creates a large force for movement of the slide 22 in and opposite to the forward feed direction. Moreover, the forward feed drive of the earth boring machine 10 has a rotationally drivable forward feed spindle 20 arranged on the frame 18, which spindle is received by a spindle nut non-rotationally connected with the slide 22.

Abstract: A method and apparatus for laying a pipeline. Working and receiving pits are dug out. An active working member is dropped into the working pit at a preselected depth. The active working member is fixed to a vertical knife of a power mechanism. Polyethylene pipeline is secured to an end part of the active working member. Then the power mechanism is energized and simultaneously horizontal pulling forces of the power mechanism are applied to the vertical knife. The active working member may be a drill head with different nozzles (bits) connected with a mud supply unit by a hose passing through a hollow portion of the vertical knife. On a non-working end of the active member the pipeline is fixed by an adapter.

Abstract: The present invention relates to improvements in the operation and construction of roof bolters or roof bolt installation apparatus. The improvements comprise a roof bolter constructed so that the critical moving parts of its timber jack, feed frame, feed carrier and rotational unit are comprised of a rod and sleeve construction. Such construction allowing the protection of surfaces. The construction also includes feature of a spaced apart rod and sleeve construction which allows motive power units to be housed within the confines of the timber jack and feed carrier. The spaced apart arrangement also provides stability to the roof bolter.

Abstract: An adaptor handle for a power tool, and in particular, for a hammer and chipping gun, which allows the operator to operate the hammer and chipping gun from a standing erect position as opposed to a kneeling or squatting position the adaptor handle being an elongate longitudinal handle with securing members affixed thereto and dimensioned and designed to be secured to the hammer and chipping gun, the elongate longitudinal handle being of sufficient length to allow the operator to operate the hammer and chipping gun from an erect standing position.

Abstract: A drilling device has a drilling mast and a movable drifter thereon with a drill rod stabilizing device for stabilizing drill rods in position during drilling. The stabilizer travels along the mast along with the drifter, and includes a locking arm that automatically opens and closes the stabilizer to allow passage of drill rods into an out of the drill line from storage, while supporting the drill rods during drilling. In a substantially vertical drilling position, the stabilizer is moved downwardly by gravity, and upwardly by the drifter's drive chain, which is retained in contact with the stabilizer by a pick-up link on the drive chain contacting stop blocks on the stabilizer. In a substantially horizontal drilling position, the stabilizer is moved in a return direction by the pick-up link and stop block combination.

Abstract: An apparatus (10) for the rapid, remote, forcible entry of the trunk lid or cargo area of a vehicle which includes one or more heads (12) engaged under the trunk lid or against the external wall of the vehicle to be breached, a piston rod (14) attached to one or more of the heads (12), a piston rod collar (16) through which the piston rod (14) slides, a piston (20) attached to the remaining end of the piston rod (14), a cylinder (22) within which the piston (20) is disposed and freely slides, a firing chamber (24) positioned on the external surface of the cylinder (22) enclosing an explosive means (24D) which provides the force with which the apparatus breaches the vehicle, a foot (28) attached to the cylinder (22) which serves as a tractional base for the apparatus (10), and a means for detonation connected to the explosive means (24D).