A gripper a fuel element, comprises a housing, an inner part arranged inside the housing, the inner part and the housing being displaceable relative to one another in an axial direction, with the inner part movable between a first end position and a second end position, a catch member movable between a gripping position and a release position, a gripper spring between the housing inner part counteracting movement of the inner part from the second end position, or an intermediate position (Z) between the first and second end position, to the first end position, and a damping system comprising a first and second connecting member for connecting the damping system to the housing, inner part and/or the fuel element loading machine, and a spring member arranged on the first and/or the second connecting member counteracting movement of the inner part from an intermediate position (Z) to the second end position.

A system and method for detecting a configuration of a crane winch assembly and activating a mode of operation of an aerial device based at least in part on the configuration is shown and described herein. The aerial device may comprise a crane winch assembly with a sensor for detecting that the crane winch assembly is stowed or deployed. When the crane winch assembly is deployed, a crane mode of the aerial device may be active. When the crane winch assembly is stowed, an aerial mode of the aerial device may be active. Further, certain operations of the aerial device may be active and inactive based on an anti-two block system of the aerial device.

A system and method for detecting a configuration of a crane winch assembly and activating a mode of operation of an aerial device based at least in part on the configuration is shown and described herein. The aerial device may comprise a crane winch assembly with a sensor for detecting that the crane winch assembly is stowed or deployed. When the crane winch assembly is deployed, a crane mode of the aerial device may be active. When the crane winch assembly is stowed, an aerial mode of the aerial device may be active. Further, certain operations of the aerial device may be active and inactive based on an anti-two block system of the aerial device.

A switch assembly for a lift unit includes a switch, an emergency stop device, and a reset actuator. The switch is arranged to move between a closed position, wherein the switch electrically couples a lift motor of the lift unit to an energy source, and an open position, wherein the switch electrically decouples the lift motor from the energy source. The emergency stop device is coupled to the switch and arranged to move the switch from the closed position to the open position. The reset actuator is coupled to the switch and arranged to move the switch from the open position to the closed position, wherein the reset actuator is controllable to move the switch from the open position to the closed position.

A switch assembly for a lift unit includes a switch, an emergency stop device, and a reset actuator. The switch is arranged to move between a closed position, wherein the switch electrically couples a lift motor of the lift unit to an energy source, and an open position, wherein the switch electrically decouples the lift motor from the energy source. The emergency stop device is coupled to the switch and arranged to move the switch from the closed position to the open position. The reset actuator is coupled to the switch and arranged to move the switch from the open position to the closed position, wherein the reset actuator is controllable to move the switch from the open position to the closed position.

A victim retrieval apparatus for use with a vehicle. In some embodiments, the rescue basket comprises one or more wheels. The articulating head of the boom comprises a rotatable pulley for receiving the rescue line and is able to allow the vehicle to be parked in any position necessary while rescuing the victim. A knot-passing pulley enables a safety line (with emergency brake device) to be coupled to the basket thereby ensuring the safety of the victim in the basket at all times. The rescue basket comprises a remote control for controlling the winch speed that is able to be located at the winch itself, or be of a hand-held nature and attached at the rescue basket instead of at the vehicle if visual contact is problematic.

A victim retrieval apparatus for use with a vehicle. In some embodiments, the rescue basket comprises one or more wheels. The articulating head of the boom comprises a rotatable pulley for receiving the rescue line and is able to allow the vehicle to be parked in any position necessary while rescuing the victim. A knot-passing pulley enables a safety line (with emergency brake device) to be coupled to the basket thereby ensuring the safety of the victim in the basket at all times. The rescue basket comprises a remote control for controlling the winch speed that is able to be located at the winch itself, or be of a hand-held nature and attached at the rescue basket instead of at the vehicle if visual contact is problematic.

A motor controller detects the speed at which a driven member is travelling when it enters a slow-down region of a material handling system. Using this speed and a deceleration rate, the motor controller determines a required slow-down distance to reach a desired slow speed. A traverse distance is determined as a difference between the length of the slow-down region the slow-down distance. The traverse distance extends for a first portion of the slow-down region and the slow-down distance extends for the second portion of the slow-down region. While the driven member is located within the traverse distance, the driven member may continue operating at the speed at which it entered the slow down region. When the driven member reaches the slow-down distance, the motor controller begins decelerating the driven member.

There is provided a mobile crane including an undercarriage, turning body turnably supported by the undercarriage, a boom derrickably supported by the turning body, a derricking unit that causes the boom to perform a derricking operation, a derricking force measurement unit that measures a derricking force by which the derricking unit causes the boom to perform the derricking operation, a ground angle acquisition unit that acquires a boom-to-ground angle which is an angle of the boom relative to a ground where the undercarriage is disposed, and an actually suspended load calculation unit that calculates an actually suspended load, based on the derricking force and the boom-to-ground angle.

There is provided a mobile crane including an undercarriage, turning body turnably supported by the undercarriage, a boom derrickably supported by the turning body, a derricking unit that causes the boom to perform a derricking operation, a derricking force measurement unit that measures a derricking force by which the derricking unit causes the boom to perform the derricking operation, a ground angle acquisition unit that acquires a boom-to-ground angle which is an angle of the boom relative to a ground where the undercarriage is disposed, and an actually suspended load calculation unit that calculates an actually suspended load, based on the derricking force and the boom-to-ground angle.