An integrated air jack assembly for a snowmobile for generally lifting the snowmobile from a stuck position to a free position. The assembly including a pair of airbags positioned on an underside of a chassis and coupled to an air source for inflation. In the preferred configuration of the device, the air source is a jet powered fan configured to inflate a first airbag and a second airbag for raising an underside of a chassis of the snowmobile.

Systemized controls, apparatus, and mechanisms for unloading or loading portable buildings or equipment with respect to a flatbed trailer or an open, flat hauling platform are provided by a load management system. Loads such as prefabricated sheds are loaded safely without damage onto a trailer for hauling to from locations which may have hostile terrain in the vicinity of pick-up or final placement. The load management system provides a series of powered continuous tracks and lifting devices used to extend the load management system to the ground and lift the trailer until its wheels lose contact with the ground. The load management system uses powered continuous tracks to move the trailer over potentially hostile terrain to an unloading location. Conversely, the load management system can be used for loading a shed for secondary moving or repossession. During transit the load management system remains locked into a retracted safe configuration.

Systemized controls, apparatus, and mechanisms for unloading or loading portable buildings or equipment with respect to a flatbed trailer or an open, flat hauling platform are provided by a load management system. Loads such as prefabricated sheds are loaded safely without damage onto a trailer for hauling to from locations which may have hostile terrain in the vicinity of pick-up or final placement. The load management system provides a series of powered continuous tracks and lifting devices used to extend the load management system to the ground and lift the trailer until its wheels lose contact with the ground. The load management system uses powered continuous tracks to move the trailer over potentially hostile terrain to an unloading location. Conversely, the load management system can be used for loading a shed for secondary moving or repossession. During transit the load management system remains locked into a retracted safe configuration.

A bracket assembly four securing a hydraulic jack in a vehicle. The bracket assembly including a base and two support walls opposite each other and extending outwardly from the base to support the hydraulic jack. The assembly includes a base band having a first end and a second end. The base band is disposed between the two support walls and is connected to the base. A first strap partially made from sheet metal has a fixed end and a free end with the fixed end of the first strap pivotably connected to a first end of the base band. The free end thereof detachably coupled to the second end of the base band via a locking device. The first strap and the base band secures the hydraulic jack on the two support walls.

A method of controlling operation of a linear actuator, including maintaining the linear actuator in equilibrium when supporting a first load, determining application of a second load on the linear actuator, and selectively actuating the linear actuator in response to application of the second load on the linear actuator.

Jack units attach skates to an object to be moved. Each jack unit has a tongue that slidably engages a coupling slot affixed to the object, and can be operated to raise or lower the tongue; when raised, the object is supported on the skates and can be rolled to a new location. A crane can attach to lift eyes on the jack units to allow the system to be lifted with the skates attached to the object, avoiding the risk to operators of positioning the skates under the object while it is suspended. Rotation-limiting structures can be selectively employed to block rotation of the trailing skates to facilitate steering when rolling the object supported by the system. The coupling slots can be provided in coupling elements which can attach directly to the object or which can be employed to form a freestanding frame to which the object is secured.

Jack units attach skates to an object to be moved. Each jack unit has a tongue that slidably engages a coupling slot affixed to the object, and can be operated to raise or lower the tongue; when raised, the object is supported on the skates and can be rolled to a new location. A crane can attach to lift eyes on the jack units to allow the system to be lifted with the skates attached to the object, avoiding the risk to operators of positioning the skates under the object while it is suspended. Rotation-limiting structures can be selectively employed to block rotation of the trailing skates to facilitate steering when rolling the object supported by the system. The coupling slots can be provided in coupling elements which can attach directly to the object or which can be employed to form a freestanding frame to which the object is secured.

A lifting system includes a base and an upright extending from the base. An articulating arm assembly is coupled to the upright. The articulating arm assembly has a platform coupled thereto. The lifting system further includes a prime mover. The prime mover engages the articulating arm assembly to elevate the platform to a desired height.

A container transfer system is disclosed. The container transfer system includes a conveyance mechanism configured to support a container and move the container along a first axis, and a lift mechanism configured to raise and lower the conveyance mechanism.

A central column allowing a 360 rotation on its central axis comprises mechanical safety locks and load sensors for safe operation in vertical and horizontal movements. The central rotating column may be part of a mounting and dismounting system for mining truck dump bodies and water truck bodies, providing two adjacent working areas. The lifting system for dump bodies of mining trucks and bodies of water trucks comprises a vertically adjustable mechanical lock; a spring-actuated automatic lock horizontally holding the column in position; an automatic rotation lock preventing the column from rotating while in operation; a toothed crown and pinion assembly integrated to the rotating base and allowing a 360 movement, and a load sensor preventing the horizontal movement of the column under load.