Abstract: A self-contained, mobile cellular system mounted on a vehicle bed. The system includes: an extendable scissors mast having a plurality of sections, each section comprising a first cross bar pivotably connected to a second cross bar, the mast further including an actuator configured to selectively extend and retract the mast; and an antenna fixed atop the mast.

Abstract: A lifting device includes a chassis, a turret connected to the chassis so as to rotate around a vertical axis, and a lifting arm, extending between a first end connected to the turret, and a second end connected to a unit for carrying the load. It includes a first sleeve and a second sleeve, each able to receive a respective fork, arranged on the chassis, on either side of the turret, parallel to one another.

Abstract: A jib assembly has a sheath, a jib arm disposed within the sheath, and at least two gripping components disposed on the inner surface of the sheath. The sheath is operable to engage the jib arm to secure the jib arm and prevent the jib arm from extending and retracting relative to the sheath by aligning the sheath to be substantially parallel with the jib arm. The sheath is operable to disengage the jib arm to allow at least a portion of the jib arm to extend and retract relative to the sheath by rotating the sheath away from substantially parallel with the jib arm.

Abstract: Articulated operating arm (100) on which one or more implements are or can be mounted, comprising substantially three articulations (101,102,103) which are pivotally connected to each other, which substantially three articulations comprise a first articulation, a second articulation and a third articulation which is intended for connection to the one or more implements, which second articulation is pivotally connected at a first end to the first articulation an at a second end to the third articulation, wherein the substantially three articulations are rotatable adjacently of each other in order to form a shortened arm, this such that during the rotation a mechanical locking of the third articulation occurs between the second and the first articulations.

Abstract: A tower boom path is controlled in a boom lift vehicle such that the tower boom nose pin follows a predetermined path. The boom lift vehicle includes a telescoping lift tower boom pivotally coupled at one end to a vehicle base. A main boom is pivotally coupled to the tower boom nose pin at an opposite end of the tower boom. Raising and lowering of the tower boom between a fully retracted position and a raised position is effected by pivoting the tower boom relative to the vehicle base and telescoping the tower boom. The raised position is defined according to any position up to a maximum angle of the tower boom relative to the vehicle base and a maximum boom length. In order to reduce vehicle weight and expedite the tower boom lift function, pivoting of the tower boom relative to the vehicle base and telescoping of the tower boom are performed simultaneously so that the tower boom nose pin follows the predetermined path.

Abstract: An isolation mechanism for electrically isolating a control input mechanism of an otherwise substantially conventional boomed apparatus (12), such as, for example, an aerial device, digger derrick, or crane, having a workstation (14) coupled with a movable boom (16), wherein the isolation mechanism allows a worker to control movement of the boom (16) and positioning of the work station (14) while protecting against electrical discharge along substantially any path which includes the control input mechanism. In a first embodiment, the isolation mechanism takes the form of an improved control input mechanism (10), portions of which are constructed of or covered with an electrically non-conducting material. In a second embodiment, the isolation mechanism takes the form of a boom extension (110) constructed of or covered with electrically non-conductive material. In a third embodiment, the improved control input mechanism (10) and the boom extension (110) are combined.

Abstract: An isolation mechanism for electrically isolating a control input mechanism of an otherwise substantially conventional boomed apparatus (12), such as, for example, an aerial device, digger derrick, or crane, having a workstation (14) coupled with a movable boom (16), wherein the isolation mechanism allows a worker to control movement of the boom (16) and positioning of the work station (14) while protecting against electrical discharge along substantially any path which includes the control input mechanism. In a first embodiment, the isolation mechanism takes the form of an improved control input mechanism (10), portions of which are constructed of or covered with an electrically non-conducting material. In a second embodiment, the isolation mechanism takes the form of a boom extension (110) constructed of or covered with electrically non-conductive material. In a third embodiment, the improved control input mechanism (10) and the boom extension (110) are combined.

Abstract: A wall saw accessory is provided for an aerial work platform, where a wall saw is movably affixed on a track secured to a wall to be sawed. The accessory includes a saw/track manipulator fixable to the aerial work platform. The saw/track manipulator movably supports the track and saw and enables positioning of the saw and track to and from a working position. A hydraulic power source is coupled with a water supply to provide hydraulic power and coolant flow to the wall saw. In one arrangement, the accessory additionally incorporates an onboard pressure washer, which serves to streamline the process and maintain a clean work area. The accessory may be attached to a lift vehicle including a chassis supporting an onboard water supply.

Abstract: A utility apparatus including lift apparatus and dump body apparatus is provided with quick attachment means to permit ready mounting of the utility apparatus on the support frame of a vehicle. The utility apparatus includes a mounting frame having shiftable support members for supporting the apparatus in a free standing position above a support surface. The support members are moved to a transport position when the utility apparatus is mounted on a vehicle frame. Cooperating hooks on the apparatus mounting frame engage and lock to pins on the vehicle support frame. Releasable latch members on the apparatus mounting frame and vehicle support frame latch the utility apparatus on the vehicle support frame.

Abstract: An aerial lift apparatus unit includes at least a lower boom pivotally interconnected to a transport unit for raising and lowering of the lower boom. An upper boom is pivotally connected to the outer end of the lower boom for raising and lowering of the upper boom with respect to the lower boom. A single integrated lifting and compensating cylinder unit includes an elongated cylinder with a piston and piston rod journaled in the one end and operable to extend outwardly therefrom. The cylinder defines a dual operating cylinder with a base end from which the piston rod extends and an inner base end extending from the base end and defining an upper boom/compensating unit. A hydraulic control system includes a first hydraulic gated control system for raising and positioning of the upper boom relative to the lower boom.

Abstract: A rock drilling rig has a carrier (1) provided with a service platform (7) arranged on a service boom (6). The service boom has a number of relatively movable boom sections (33, 36). The service platform (7) is connected to the service boom (6) by a parallelogram mechanism (22). The service platform (7) is arranged to the side of a swing plane of the parallelogram mechanism (22) to prevent collisions between the service platform and the service boom.

Abstract: Disclosed herein is an elevating lift for raising and lowering a load (such as a sensor suite) onboard a vehicle, such as a Humvee, which can allow for the transport of the vehicle in a standard transport without removal of the sensor suite from the vehicle, and can provide for a more stable support for the load than is available from a traditional mast. The elevating lift may also able to maintain the load in a parallel position as it is raised, and may be able to lock in a intermediate position where the sensor suite can be used while the vehicle is in motion.

Abstract: An aerial lift apparatus unit includes at least a lower boom pivotally interconnected to a transport unit for raising and lowering of the lower boom. An upper boom is pivotally connected to the outer end of the lower boom for raising and lowering of the upper boom with respect to the lower boom. A single integrated lifting and compensating cylinder unit includes an elongated cylinder with a piston and piston rod journaled in the one end and operable to extend outwardly therefrom. The cylinder defines a dual operating cylinder with a base end from which the piston rod extends and an inner base end extending from the base end and defining an upper boom/compensating unit. A hydraulic control system includes a first hydraulic gated control system for raising and positioning of the upper boom relative to the lower boom.

Abstract: A boom mechanism that is cooperable with a lift vehicle or base structure includes a tower boom and an upper boom liftable in a dependent relationship by a single lifting mechanism. The tower boom and the upper boom are respectively pivotally secured to an upright having a fixed orientation by a tower link or the like. A timing link is secured between the tower boom and the upper boom, and a lifting mechanism is secured between the upright and the upper boom. As the upper boom is driven by the lifting mechanism, the timing link secured to the tower boom causes the tower boom to pivot about a tower boom nose pivot, thereby raising both the upper boom and the tower boom in a dependent relationship. The construction helps to minimize the need for tail and frame counterweight by controlling a position of the platform in configurations of both forward and rearward instability. As a consequence, the gross vehicle weight can be considerably reduced.

Abstract: A boom arrangement for a rock drilling apparatus includes at least one boom and an actuator, e.g., a passenger cage, arranged at a free end of the boom. The boom also includes at least two boom parts articulated pivotably with respect to each other. The first boom part is articulated by a first articulation pivotable substantially in a horizontal direction. The second boom part in turn is arranged at an end of the first boom part, and the second boom part can be turned both vertically and horizontally with respect to the first boom part.

Abstract: An aerial work platform supported by a riser boom, a telescoping main boom, and a jib boom. Boom movement may be controlled by a platform control module or a ground control module connected to a controller by a controller area network (CAN). Movement of the platform and the jib boom are limited to a predefined envelope. If an operator attempts to move the platform outside the envelope, the controller automatically retracts the telescoping boom section or automatically levels the jib boom section in order to maintain the platform within the acceptable envelope. Boom section select switches permit the operator to select and move sequentially or simultaneously in different directions. Timers which are part of the system include various interlocks to accomplish safety and power saver features.

Abstract: Load-bearing apparatus, such as a boom lift, including first and second arm portions, in which at least one element, such as a hydraulic cylinder, is provided for selectively imparting a predetermined dependent relationship as well as a predetermined independent relationship between the first and second arm portions. The manufacture of such load-bearing apparatus can be customized by preselecting the dependent and independent relationships by altering given parameters.

Abstract: A method of operating a lifting apparatus for moving an arm structure is disclosed. The lifting apparatus includes a first arm structure and a second arm structure pivotally connected to the first arm structure. The apparatus further includes a moving device and a displacing link for displacing the moving device relative to at least the first or second arm structures. The displacing link provides the moving device with a mechanical advantage whereby work required to move the second arm structure is substantially reduced while lifting capacity of the second arm structure and the moving device is substantially increased, and the range of motion of the second arm structure relative to the first arm structure is also increased.

Abstract: A lift method and apparatus for moving an arm structure includes a first arm structure and a second arm structure pivotally connected to the first arm structure. The apparatus further includes a moving device and a displacing link for displacing the moving device relative to at least the first or second arm structures. The displacing link provides the moving device with a mechanical advantage whereby work required to move the second arm structure is substantially reduced while lifting capacity of the second arm structure and the moving device is substantially increased, and the range of motion of the second arm structure relative to the first arm structure is also increased.