A dolly assembly comprises a base, a plurality of pneumatic cylinders connected to the base, a plurality of wheel assemblies connected to the plurality of pneumatic cylinders, and a pressure relief mechanism. The base has an outer surface configured to support cargo. The pressure relief mechanism is configured to bleed pressure from the plurality of pneumatic cylinders when the base is oriented at or exceeding a set angle.

A powered lift hand truck with a corresponding method of operation and control. The apparatus includes a powered lift hand truck configured to lift a load from a lowered to a raised position (and vice versa). The system uses the rotational speed to measure linear speed and enforce a consistent speed of the load. The system is programmed to lift/lower loads at the same speed, regardless of load overall weight. If, for example, the load is heavy, the system determines that the speed is below a predetermined threshold and increases the power so as to increase speed.

A pallet lift includes a base and at least one platform for supporting an object thereon. The at least one platform extends forward of the base. A plurality of load wheels are below the at least one platform and configured to move toward and away from the platform to selectively lower and raise the platform. A plurality of load motors are each configured to drive one of the plurality of load wheels. At least one rear wheel is positioned below the base. At least one processor is programmed to control the plurality of load motors to provide differential steering to the pallet lift.

The present disclosure relates to a bearing surface transporter comprising an upper part for receiving an object to be transported, such as a patient bearing surface of an operating table, and a lower part. The lower part may comprise: at least three castors for manually moving the bearing surface transporter in any horizontal direction, at least one motorized drive wheel/roller, and a lowering mechanism for selectively lowering and raising the at least one drive wheel/roller relative to the castors, wherein the drive wheel(s)/roller(s) assume(s) an upper position for moving the bearing surface transporter manually and a lower position for moving the bearing surface transporter in a motorized manner. The lowering mechanism may have a pedal which can be actuated in an actuation direction, and the lowering mechanism may be designed such that a first actuation of the pedal in the actuation direction lowers the drive wheel(s)/roller(s) from the upper position into the lower position and that a second actuation of the pedal in the actuation direction raises the drive wheel(s)/roller(s) from the lower position into the upper position.

A displacement arrangement for use in a combination dolly-pallet includes an impelling member movable between first and second positions. A linkage is pivotally connected to the impelling member. When the impelling member moves between the first and second positions, the linkage moves pivotally relative to the impelling member to an extended position.

An electric mechanical wagon to assist in transportation and hauling various items is disclosed. A removable wagon with a superstructure that can be easily attached to a standard vehicle receiving hitch insert for transportation by said vehicle. The wagon's ease of attachment to the vehicle allows for quick mounting and un-mounting of the wagon to be relocated to a desired location. The mounting and un-mounting of the wagon is facilitated by an electro-mechanical lift system within the wagon itself. This lifting system allows the wagon to raise high enough to be mounted to a receiver plate attached to the vehicle hitch receiver. When mounted the wagon wheels retract and stow into the wagon body allowing enough clearance for transport of the wagon.

An extendable strut assembly comprises a nested series of square or rectangular beams, the centermost of which may be a solid bar and all others are hollow sections. Glide strips of predetermined thicknesses take up the clearances between the beams and can be affixed to the beams by adhesive, so that beam surfaces run smoothly on the glide strips and the strut assembly can be extended and retracted with ease.

A rolling cart has a wheeled frame, telescoping vertically extendable members with glide strips, and a tiltable frame having glide strips interspersed with transfer balls to easily slide slabs or sheet materials for construction such as when installing countertops. The tiltable frame includes retractable lifter feet which support a slab in transit but drop below the level of the slab automatically when the tiltable frame is tilted to horizontal.

A rolling cart has a wheeled frame, telescoping vertically extendable members with glide strips, and a tiltable frame having glide strips interspersed with transfer balls to easily slide slabs or sheet materials for construction such as when installing countertops. A method is also described for measuring a minuend desired install height, subtracting a geometrically predetermined subtrahend, and adjusting the height from a floor surface to a pivot axis on the cart to equal the difference, said adjustment being effected by powered lifting means incorporated or ancillary to the cart.

A rolling cart has a wheeled frame, telescoping vertically extendable members with glide strips, and a tiltable frame having glide strips interspersed with transfer balls to easily slide slabs or sheet materials for construction such as when installing countertops. A method is also described for measuring a minuend desired install height, subtracting a geometrically predetermined subtrahend, and adjusting the height from a floor surface to a pivot axis on the cart to equal the difference, said adjustment being effected by powered lifting means incorporated or ancillary to the cart.