Abstract: The invention describes a quick-change device in which the arrangement of Centring discs (1) and of control plates (10) prevents jamming during the insertion operation.

Abstract: An assembly for securing an implement to a boom, the assembly comprising a link member pivotally connected to a boom and, a first recess being formed in a first of the arm and a second being formed in the link member proximate one end thereof, the second recess having elongated configuration with a longitudinal axis extending parallel to the link member longitudinal axis, the implement assembly comprising a mounting arm and a implement, the mounting arm having a pair of first pins extending outwardly from opposite sides thereof and a pair of second pins extending outwardly from opposite sides, the first pair of pins being located between the implement receiving end and the center of gravity of the implement assembly. The arrangement permits rapid and secure switching of different implements.

Abstract: A mobile trencher machine having an upper assembly, a ground drive assembly, and an adapter frame positioned between and coupled to each of the upper assembly and the ground drive assembly. The ground drive assembly being positionable in one of a number of mounting positions relative to the upper assembly, including a forward position, a rearward position, and a central position.

Abstract: A coupling for a plow comprising a push beam attachable to a front of a vehicle. The push beam has at least one outwardly-extending plate at each end thereof. Each plate has an aperture extending therethrough. A support frame is provided that is attachable to the back side of a plow assembly. The support frame has two spaced-apart plates extending therefrom, each of the plates having an aperture therethrough. The plates are dimensioned to be positioned adjacent the plates on the push beam with the apertures in the plates being aligned. A locking assembly is provided for locking the support frame to the push beam. The locking assembly is comprised of a pair of axially aligned pins biased outwardly away from each other. Each of the pins has an inner end and an outer end. A linkage connects the inner ends of the pins. The linkage has a first position wherein the pins are retracted toward each other along the axis, and a second position wherein the pins extend outwardly away from each other along the axis.

Abstract: A snow plow assembly with a longitudinally extending plow body has a blade mounting structure that supports a longitudinally extending plow blade. The blade mounting structure has a series of hinges that receive a longitudinally extending pivot rod to couple the plow body to the snow blade and set of springs to bias the snow plow blade into an operative position and to resiliently restore the snow plow blade to the operative position after encountering an obstacle. The hinge portions fixed to the snow plow body each have a receiving slot to slidingly receive a hinge key and the hinge keys define a bearing surface for abutting one end of the coil spring. A locating notch is provided in the hinge keys to limit relative movement between a hinge key an associated hinge portion. A hinge lock to capture the pivot rod is also provided.

Abstract: An apparatus for connecting an attachment to a vehicle includes first and second mounting pegs mounted to one of the attachment and vehicle, a mounting arm having first and second cut-outs sized and spaced to receive the respective first and second mounting pegs, and first and second latches that are pivotable to trap the mounting pegs in the cut-outs. The apparatus further includes a detent mechanism resiliently holding the first latch in each of the latched and unlatched positions with a detent force. An over-center biasing mechanism provides a biasing force along a line of force, and urges the second latch into the latched and unlatched positions in response to the line of force being on one side of the pivot axis or the other.

Abstract: A linkage assembly that includes a pivot pin cartridge disposed to connect pivotably a lift arm and a lever of the linkage assembly along an axis including the cartridge. The pivot pin cartridge includes a pin, at least one bustling pivotably disposed about at least a portion of the pin, and a pair of sleeve bearing inserts free-floatingly positioned about the pin and within at least a portion of the bushing. The rear tilt lever is coupled to the bushing for rotation about the pin, while at least one of a pair of side plates of the lift arm is coupled to the pivot pin.

Abstract: An adapter for mounting at least one skid-steer loader attachment onto an excavator arm includes a mounting mechanism having a lower edge, an upper edge and a lip extending outwardly therefrom, the lip receiving an upper lip of such at least one skid-steer loader attachment for locking thereto. The mounting member is adapted with a pair of aligned first notches, a pair of aligned second notches and a pair of apertures for coupling onto a free end of such excavator arm in a conventional semi-permanent manner. A pair of locking assemblies are provided selectively engaging and releasing a lower edge of such at least one skid-steer loader attachment.

Abstract: A loader attachment system for efficiently attaching an implement (i.e. bucket, etc.) to a skid steer loader or other similar use vehicle. The loader attachment system generally includes an upper assembly including an upper end and a lower end, wherein the upper assembly is pivotally attached to a mounting plate, a sleeve attached to the mounting plate, a plunger pivotally attached to the lower end of the upper assembly, wherein the plunger extends within the sleeve and wherein the plunger slidably adjusts within the sleeve and a first spring mechanically connected between the upper assembly and the mounting plate. The first spring mechanically rotates the plunger within the sleeve via rotation of the upper assembly.

Abstract: A modular system for connecting attachments to the extension arm of a construction machine, wherein each module has a standardized coupling arrangement. As a result, each module is compatible with another module to provide great versatility in configuring the machine. Additionally, the system includes a variety of different modules and a mechanism for remotely activating the coupling between modules.

Abstract: An improved dipper stick, tool, and thumb combination includes a progressive linkage for connecting the thumb to a thumb actuator wherein the pivot axis of the thumb idler link connection is spaced from the pivot axis of the tool idler link connection. The pivot axis of the thumb idler link connection may be offset outwardly from the inner surface of the dipper stick. A mounting plate may be connected to the inner surface of the dipper stick to locate the pivot axis in the offset position.

Abstract: A mounting system for excavator attachments or implements (10) having a pair of spaced mounting ears (12, 13) extending from implement includes a mounting pin receptor (19) engaged in each of at least one aligned pair of holes (14, 16) in the ears (12, 13), the pin receptors (19) each having an eccentric pin receptor hole (23) adapted to receive one of the mounting pins (17, 18). The pin receptors (19) are rotatable about their axes to vary, relative to the ears (12, 13), the position of the engaged mounting pin (17, 18). A locating plate (24) engaged with the mounting pin (17, 18) has one or more locating surfaces (32) to engage a cooperating surface on the ears or the attachment. The locating surfaces (32) and their engagement with the cooperating surfaces determines the relative position of the mounting pin (17, 18) engaged with the pin receptor holes (23).

Abstract: A coupling apparatus for releasably coupling a hydraulically activated work implement to a work vehicle includes an implement attachment device for attaching a work implement to a work vehicle, a first coupling assembly, and a second coupling assembly. The implement attachment device includes a forward side for facing the work implement and a rearward side for facing the work vehicle, first mounting members extending from the rearward side for mounting the implement attachment device to at least one boom arm of the work vehicle, and second mounting members for mounting the implement attachment device to the work implement. The first hydraulic coupling assembly extends from the rearward side, and includes a first coupler configured for fluid communication with a hydraulic power source on the work vehicle.

Abstract: Excavator tool quick attachment device (1) is used to attach a tool to a dipper arm (2) of an excavator. Body member (52) has two receivers (12,14) for tool pins (11,15). Receiver (12) has a movable latch (3) powered by an hydraulic ram (20) for securing and releasing pin (11) and receiver (14) has a movable spring loaded lock (22) for securing and releasing pin (15). A control assembly (21) is connected between latch (3) and lock (22) but only operates to release lock (22) when the device (1) is inverted relative to a normal working position and the hydraulic ram (20) is activated.

Abstract: A pivoting loader attachment system for allowing an attachment to freely pivot with respect to a tractor's loader. The pivoting loader attachment system includes a pivoting connector pivotally attached to an attachment. The pivoting connector is attached to the front end connector of a front end loader. The pivoting connector pivots within a defined range of movement thereby limiting the range of movement the attachment makes with respect to a front end loader of a tractor.

Abstract: An extendable frame work vehicle offering enhanced versatility, safety and effectiveness. The vehicle includes an adjustable frame with front and rear portions that extend or retract with respect to each other. The front portion is supported by a first pair of wheels and said rear portion is supported by a second pair of wheels. Each wheel is independently driven and steered. The vehicle also includes an engine mounted on the rear portion of the frame. Incorporated into the vehicle is an electro-hydraulic assembly which enables extension and retraction of the adjustable frame. The assembly includes a sensor-responsive microprocessor controller, at least one hydraulic pump, at least one hydraulic drive motor, and at least one valve network.

Abstract: A device is provided for attaching a first part in the form of an instrument or tool to a second part in the form of a beam or such on a working machine having, on each of the parts, one engagement member fixed thereto, which are designed to be driven into engagement with each other so that the force of gravity on the first part holds the parts attached to one another. A first (17) of the engagement members is of the male-type having external surfaces converging towards each other and a second of the engagement members is of the female-type having internal surfaces converging towards each other in a corresponding way to said surfaces of the first engagement means for receiving and holding the first engagement means in the second engagement means under the influence of the force of gravity on the first part.

Abstract: A quick coupler for connecting and disconnecting an implement such as a bucket to and from a machine such as an excavator. In an example, the quick coupler includes a frame having recesses configured to receive pins located on the implement. The quick coupler includes first and second securing latches that are movable between latched and unlatched positions for removably latching the pins of the implement in the recesses. A rocker assembly and a connector link are provided for moving the second latch between latched and unlatched positions.

Abstract: An attachment coupler includes a first arm and a second arm, each including a U-shaped portion, and upper portions of the first and second arms being swingably connected by a swing shaft, and an expansion-contraction tool which opens and closes the first and second arms around the swing shaft as a fulcrum. A locking member provided with a cam and a hook provided with a cam follower are rotatably provided on the second arm. A state in which a free end of the hook is removed from an opening of the U-shaped portion is maintained by engagement of the cam and the cam follower during contraction of the expansion-contraction tool. The cam follower is driven by the cam along with rotation of the locking member during expansion of the expansion-contraction tool, thereby causing the free end of the hook to advance toward the opening of the U-shaped portion.

Abstract: A remote controlled latching system includes a latch device configured for mating engagement with a connection member to secure an attachment to a carrier; a latching cylinder coupled to the latch device, the latching cylinder having a latched position and an unlatched position; a valve assembly fluidly coupled to the latching cylinder, the valve assembly being configured to selectively drive the latching cylinder into the latched position and the unlatched position; a latching control switch operatively connected to the valve assembly for operating the valve assembly; and a height sensing switch operatively connected to valve assembly for operating the valve assembly.

Abstract: A hydraulic quick coupling is described for the coupling of structural components. Two interacting quick-coupling parts are provided which are arranged respectively on the structural components, one quick-coupling part having at least one guide bolt which can engage in a centering bore of the quick-coupling part lying opposite it, each quick-coupling part being provided with coupling plugs or coupling sleeves for the connection of the hydraulic lines, and at least one quick-coupling part being arranged movably on one structural component in order to connect or separate the two quick-coupling parts.

Abstract: A control circuit for an attachment mounting device that has a closed position for securing an implement and an opened position for releasing an implement. The control circuit includes at least one hydraulic actuator, a control valve and an auto-close feature. The control valve has at least a first energized position and a second energized position. The first energized position applies pressurized fluid to the at least one hydraulic actuator to actuate the attachment mounting device into the closed position. The second energized position applies pressurized fluid to the at least one hydraulic actuator to actuate the attachment mounting device into the opened position. The auto-close feature is configured to be activated after the control valve is in the first energized position and is configured to be deactivated after the control valve is in the second energized position.

Abstract: A coupling apparatus, or adaptor, releasably secures a tool such as a bucket to the linkage of a tractor such as a backhoe in a direction opposite the normal, rear-facing direction.

Abstract: A control system for controlling the release of an accessory from any quick hitch coupler coupling the accessory to a hydraulically operable arm of a machine, operated by a pressurized hydraulic system. The control system can be used with a coupler for coupling an accessory to a dipper arm and a control system for such a coupler, such as a quick hitch coupler for coupling an accessory to a dipper arm of a back actor such as may be used by an earth working apparatus. The quick hitch coupler comprises a body member adapted for coupling to the dipper arm, a fixed engaging means mounted on the body member for engaging a first one of a pair of coupling pins mounted on the accessory, and a moveable engaging means mounted on the body member for engaging a second one of the pair of coupling pins of the accessory.

Abstract: An excavator includes an undercarriage including a track, a turret rotatable on the undercarriage, the turret including a chassis, a first operative arm set, a second operative arm set, an adapter body coupling the first operative arm set to the second operative arm set; and a work tool coupled to the distal end of the second distal arm. The first operative arm set comprises (i) a main arm rotatably mounted on the chassis, (ii) a first distal arm rotatably mounted on the main arm, (iii) a main hydraulic actuator coupled to the main arm and the chassis and (iv) a first distal hydraulic actuator, with the main hydraulic actuator being operable to rotate the main arm relative to the chassis and the first distal hydraulic actuator being coupled to the distal arm.

Abstract: A demolition claw has a support, a pivot pin mounted on the support and centered on and extending along an axis, and two jaws each having a hole through which the pivot pin extends so that the jaws can pivot on the support about the axis. The jaws have adjacent the respective holes confronting flat faces. An arcuate formation fixed on one of the faces adjacent the respective hole projects axially therefrom toward the other of the faces and is generally centered on the axis. A retaining formation fixed on the other of the faces adjacent the respective hole projects axially therefrom toward the one face, is radially offset from the arcuate formation, axially overlaps the arcuate formation, and surrounds the arcuate formation. Structure is provided on one of the jaws for preventing axial separation of the jaws.

Abstract: A quick-attach system for attaching and detaching the rearward ends of the push tubes of a blade, a materials handling structure, or other devices to the underside of an off-road vehicle such as an ATV or UTV. The system includes a mounting plate secured to the underside of the vehicle and which has a pair of mounting pins positioned therebelow. A quick-attach mechanism is provided at the rearward end of each of the push tubes and a spring-loaded latching lever thereon automatically performing the attaching function to associated mounting pin. The latching lever may be manually moved to an unlatched position to permit the quick-attach mechanism to be disconnected from the mounting pin.

Abstract: A loader coupler includes a body with a front region, a rear region, an upper region, a lower region, and left and right lateral sides, a tilt actuator pin-on location, and left and right arm pin-on locations. Left and right laterally spaced-apart inner rib mounts are provided on the body and are adapted to mate respectively with left and right ribs of a first type of attachment coupling structure. Left and right inner locking regions are defined by the body and are vertically aligned with the left and right inner rib mounts, respectively. Left and right laterally spaced-apart outer rib mounts are provided on the body and are adapted to mate respectively with left and right ribs of a second type of attachment coupling structure. Left and right outer locking regions are defined by the body and are vertically aligned with the left and right outer rib mounts, respectively. A lock system includes left and right plunger assemblies that each move between a locked and unlocked position.

Abstract: A method is provided for enhancing the repositioning of an excavating machine, including an excavating assemblage, from one set-up position to a next, subsequent set-up position. A joystick is controlled in implement control mode to operate at least one of a boom, a stick, and a bucket of the excavating assemblage during a first excavating phase from a first machine set-up position. The first excavating phase is terminated and, during a machine repositioning phase, the machine is moved to a second machine set-up position for a second excavating phase at the second machine set-up position. After terminating the first excavating phase and before moving the: machine to the second machine set-up position, an input/display device is accessed and activated to convert the joystick from implement control mode to machine control mode. At least machine steering and machine propulsion are controlled with the joystick set in the machine control mode during the machine repositioning phase.

Abstract: A method of controlling a machine during an excavating operation is provided. Stabilizers are deployed to ground contact to stabilize the machine at a first set-up position. Excavating is performed with an excavating assemblage during a first excavating phase while the machine is stabilized at the first set-up position. An automated machine preparation for repositioning mode is initiated for preparing the machine, after the excavating phase, for repositioning to a second set-up position for a second excavating phase, by activating an input device to send input signals to a controller. Output signals are delivered from the controller to control automated machine preparation for repositioning to the second set-up position.

Abstract: A compact earth filtering machine adapted to engage with a base vehicle includes a frame including a guide structure for guiding earth being screened. A set of rollers is supported by the frame, with each roller associated with a corresponding sprocket. A mesh, forming a continuous loop and supported by the rollers, is provided for elevating and screening earth provided by the guide structure. A drive chain, coupled along an edge of the mesh, is adapted to engage the sprockets associated with the rollers. A driver is provided for rotating a selected one of the rollers and the associated sprocket to thereby cause the mesh to elevate and screen the earth provided by the guide structure. A transverse conveyor supported by the frame transports earth screened by the mesh to a discharge point adjacent to the compact filtering machine.

Abstract: A spacing assembly kit, for use with an implement assembly of a machine, includes a spacing element having a bore and a recess coaxial with the bore, the spacing element being positionable on an implement coupling pin to reduce an implement coupling width, and a spring clamp positionable within the recess and configured to inhibit movement of the spacing element along an implement coupling pin. An implement assembly includes an implement having a body and spaced apart pin supports, with a pin positionable within the pin supports and having an implement coupling width defined by an exposed portion of the pin. Spacing elements are positionable on the pin between the pin supports and configured to reduce the coupling width, spring clamps further being provided which are configured to inhibit movement of the spacing elements when the clamps are engaged about the pin.

Abstract: A mounting bracket is designed to interchangeably connect a processor attachment to the stick of a larger excavator or the boom of a smaller excavator in place of the stick. The mounting bracket includes mounting assemblies that are designed to operatively attach the bracket to the stick and related bucket cylinder linkage assembly of a larger excavator. The mounting bracket also includes mounting assemblies that are designed to operatively attach the bracket to the boom and related stick cylinder of a smaller excavator. The mounting bracket may avoid the need to obtain and maintain plural mounting brackets for different mounting applications (e.g., stick or boom).

Abstract: Adapter for mounting on a work machine comprising an attachment for individually attaching one or more working implements to the work machine and allowing lateral rotation or tilting of the working implement, thereby raising one lateral end of the implement while simultaneously lowering the opposite lateral end. The adapter can be permanently mounted to the work machine (and remains dormant when not in use), or can be removably mounted thereto.

Abstract: A working device, with coupling means for operatively coupling it to a vehicle, which means form a quick coupling, comprises, on a rear side of a bucket (1), a supporting plate (8) supporting a first portion of the constructional elements forming the quick coupling, whereas a respective end portion of the vehicle arms has a further supporting plate (14), which is driven by a cylinder-piston unit (21), and supports a further portion of the quick coupling forming constructional elements.

Abstract: A loader coupler or other attachment includes first and second roll-back stops located on opposite lateral sides. The stops include a mounting location such as a boss, a bumper or stop member releasably secured to the mounting location, and optionally one or more shims disposed between the mounting location and the stop member. The number and thickness of the shims may be used to control the spacing of the first and second stop members from their respective mounting locations to thus control the angular position of the coupler when the stop members contact the respective arms of the machine carrying the coupler.

Abstract: Electrically actuated quick attach systems for tractor front end loaders are disclosed. An electric actuator with extendable rods is connected to rotatable handles mounted on attachment mounting plates. Extension of the electric actuator rods rotates the handles and causes attachment locking pins to extend into locking positions. Retraction of the electric actuator rods rotates the handles in opposite directions and causes the locking pins to retract into unlocked positions. The electrically actuated quick attach systems may be used with compact utility tractors as well as other types of tractors.

Abstract: A drive of mounting a rotating implement to a crane arm or similar, comprises a rotator located between the crane arm and the unit that at one end is pivot-mounted to the implement for rotating the same relative to the crane arm and slewing around a first pivot axis and at the other end is mounted to the crane arm via a hinged link for slewing around a second pivot axis, a swivel coupling arranged on the rotator for supplying the working chambers of a drive for the rotator and any other consumers included in the unit with a hydraulic medium and that to one end of the swivel coupling is arranged connecting unions, to which hydraulic medium lines leading from the crane arm are attached.

Abstract: A coupler includes a first hook assembly comprising a first hook adapted to receive a first associated attachment pin and a second hook assembly comprising a second hook adapted to receive a second associated attachment pin. The second hook assembly selectively pivots under force of an actuator relative to the first hook assembly by an actuator. The actuator comprises a screw jack that includes a locking sleeve to prevent unintended rotation of the screw member. Alternatively, the coupler includes a locking cam that moves between a retracted position and an extended position and a supplemental lock that selectively prevents movement of the locking cam from the extended position to the retracted position, and the actuator is operatively coupled to the second hook assembly and the locking cam.

Abstract: A device to transmit power from the power system of a working machine to one or more moving parts (25, 26) of a tool replaceably attachable to a first part of the working machine which is in the form of a beam, or such, comprising a first element (7) arranged on the working machine and driven by its power system, a second element (11) movably attached to the tool and means (8, 12) arranged to mechanically interconnect both of said elements so that a displacement of the first element via the working machine's power system brings about a movement of the second element on the tool.

Abstract: An actuator operated apparatus for mounting and hydraulically coupling a working attachment to a mounting plate of a work vehicle. The apparatus receives a portion of pressurized fluid from the work vehicle to actuate a pair of wedges that slidably move to lock or unlock the working attachment and the mounting plate. The apparatus receives a remaining portion of the pressurized fluid from the work vehicle to engage or disengage at least one hydraulic coupler of a first coupling block and at least one hydraulic coupler of a second coupling block.

Abstract: A working machine includes a lift arm and an implement coupling fixed to the lift arm. The implement coupling includes a locking element which is displaceable between an inoperative position and an operative position in which it is designed to shoot into a hole in the implement in order to lock the implement to the implement coupling. The locking element, over a first section of its length, has a first cross-section that will allow the first section of the locking element to be shot into the hole in the implement, and over a second section, which adjoins the first section, has a second cross-section which prevents the second section being shot further into said hole. The second section comprises a stop face designed to be brought to bear against the implement when securing the implement to the implement coupling.

Abstract: A backhoe bucket reverse adapter is provided which can be interposed between a conventional Wain-Roy-style or Gannon-style backhoe arm bucket coupling assembly and a backhoe bucket so as to reverse the orientation of the backhoe bucket. The adapter is provided with an open framework and a rear end cross-connector having a tubular configuration corresponding to the tubular steel back cross-connecting member located at the top of a conventional Wain-Roy-style or Gannon-style backhoe bucket. The adapter has a pair of hook elements that are oriented in a forward direction, away from the chassis of the backhoe vehicle and in an opposite direction from the hook elements of a conventional backhoe coupling system. The hook elements of the backhoe bucket adapter can be utilized to engage a back cross-connecting member located at the top of a conventional bucket, while the structure of the adapter receives the oppositely directed hook elements of a conventional backhoe coupling assembly.

Abstract: A manipulator assembly for attachment to a bucket of a construction vehicle is disclosed. The manipulator assembly includes a universal attachment apparatus for attaching a utility tool to the bucket. The universal attachment apparatus includes a housing adapted to support the utility tool, at least one mounting bracket connected to the housing, and at least one mounting arm having a first end and a second end, the first end being connected to the mounting bracket. The mounting arms further include feet positioned adjacent the quick-release connector for allowing the utility tool to pivot relative to the bucket. A quick-release connector is mounted to the second end of the mounting arm for selectively securing the housing to the bucket. A biasing device is disposed on the quick-release connector for continuously urging the quick-release connector into engagement with the bucket.

Abstract: The invention relates to a construction machine with a quick coupler for the coupling of a tool to a boom having a quick coupling part on the boom side and a quick coupling part on the tool side having a power circuit coupling, in particular a hydraulic coupling, having plate-like supports of the power coupling parts for the automatic coupling of a power connection on the tool side to a power connection on the boom side. In accordance with the invention, a write/read head is arranged in or at one of the two plate-like supports. Furthermore, a data carrier is arranged in the oppositely disposed plate-like support such that both can exchange data with one another in the coupled state.

Abstract: A bucket has a pair of longitudinally parallel and spaced apart pins for attaching to a pin grabber quick coupler. The pins may require removal from the bucket for repair or replacement if the pins are damaged. One or more windows are formed in the side of the bucket for facilitating access to and the removal of the pins from the bucket.

Abstract: A faceplate having a set of skid steer receiver attachment points to permit an all-purpose agricultural tractor with a three-point hitch or front end loader to operably connect to off-the-shelf skid steer attachments so that the agricultural tractor can utilize off-the-shelf skid steer attachments with the faceplate containing a cylindrical housing to permit rotation of a tool mounted therein without removing the tool from the faceplate and one embodiment including a notched chain bar having notches extending generally normal to the hitch faceplate and a further embodiment including a universal tractor mount.

Abstract: A hybrid male coupler portion for a front-end loader mates selectively and interchangeably with first and second different female coupler portions. The coupler portion includes a frame. The frame includes: (i) first and second arm pin-on locations adapted for connection to associated first and second arms, respectively; (ii) at least one tilt member pin-on location adapted for connection to an associated tilt member; and (iii) first and second coupler halves. Each of the first and second coupler halves includes: a first hook-engaging mount; a first rib locking location aligned with the first hook-engaging mount; a second hook-engaging mount; a second rib locking location aligned with the second hook-engaging mount; and, a plunger pin slidably connected to the frame and movable between an extended position and a retracted position. The plunger pin, when extended, is adapted to engage and retain an associated female coupler portion rib ear located in one of the first and second rib locking locations.

Abstract: A front end loader tactical boom apparatus providing a means of penetrating walls for the purposes of gathering intelligence and the dispensation of suppression agents. The tactical boom apparatus my be readily assembled at a given site with varying boom lengths and attachments including a claw head equipped with a camera and a means for delivery of tear gas, flash grenades and the like.

Abstract: The subject of the patent is a quick-change coupling for attaching work tools to an excavator boom, in which a respective coupling body part (1, 2) is disposed on the work tool and on the excavator boom, the two coupling body parts being mutually securable by a hook connection (3) and a wedge lock (4) having mutual bearing surfaces (5), and at least one coupling plate (14, 14?) being respectively provided on the work tool, on both sides of the longitudinal center plane and parallel to the latter, which coupling plates have, congruent with each other, the receiving recesses both of the hook connection (3) and of the wedge connection (4).