An automated storage and retrieval system includes: a storage grid having storage columns arranged in rows, in which storage containers are stacked one on top of another; a rail system having a first set of parallel rails arranged in a horizontal plane and extending in a first direction, and a second set of parallel rails arranged in the horizontal plane and extending in a second direction orthogonal to the first direction, which first and second sets of rails form a grid pattern in the horizontal plane having a plurality of adjacent grid cells; at least one container handling vehicle configured to move on the rail system, including a wheel arrangement configured to guide the at least one storage container vehicle along the rail system in at least one of the first direction and the second direction; and a service vehicle for movement on the rail system.

A track for a track system has a ground-facing side and a wheel-facing side including lugs having a base and defining a wheel path on which wheels of a track engaging assembly rolls on, the wheel path having first and second track side portions, and an intermediate track portion. When the wheel supports a load smaller than a nominal load, a distance between the base and the ground-facing side is smaller than a distance between the intermediate track portion and the ground-facing side. When the wheel supports a load equal or greater than the nominal load, a distance between the base and the ground-facing side is substantially equal to or smaller than a distance between the intermediate track portion and the ground-facing side. A wheel for a track system is also described. A track system comprising a wheel and a track is also described.

A rebar tying system including a chassis with a central opening that passes from top to bottom of the chassis, a plurality of driven wheels coupled to the chassis and configured to propel the rebar tying system bidirectionally over a rebar mat, a plurality of foot members coupled to the chassis and configured to selectively move the rebar tying system in a lateral direction relative the bidirectional wheel propelled movement, and a rebar tying gun configured to be selectively positionable both horizontally and vertically in the central opening to perform rebar tying operations.

An apparatus includes a base frame, first and second bins, first and second hydraulic assemblies, and a computer controller. The first hydraulic assembly is configured to selectively raise and lower the first bin relative to the base frame. The second hydraulic assembly is configured to selectively raise and lower the second bin relative to the base frame. The first and second hydraulic assemblies are individually actuable, and their actuation is coordinated by the controller. In another aspect, a method for transferring product using an apparatus includes inputting to a computer controller a first threshold rate of change in weight signals of a weight sensor; relaying a plurality of weight signals from the weight sensor to the controller; calculating a determination by the controller at least in part on whether the threshold rate of change has been exceeded; and automating actuation of a hydraulic assembly based on the determination.

Concrete texturing devices for use on an uncured concrete slab. The concrete texturing devices have a device body, one or more drive systems, at least one articulating arm, and at least one texturing structure. Also disclosed are methods of use.

Concrete texturing devices for use on an uncured concrete slab. The concrete texturing devices have a device body, one or more drive systems, at least one articulating arm, and at least one texturing structure. Also disclosed are methods of use.

The invention concerns a service vehicle (2) for movement on a rail system (108). The service vehicle (2) comprises a container vehicle handling part (8) for mechanical interacting with a container handling vehicle (300) operating on the rail system (108), an operational part (3) for controlling operations of the service vehicle (2) and caterpillar tracks (6) for allowing movement of the service vehicle (2) on the rail system (108) during operation.

Track system to be mounted on a vehicle in place of a rotatable OEM tire/wheel assembly, including: A frame. A drive wheel is rotatably mounted on the frame, operatively connectable to the drive shaft of the vehicle, and has a diameter of between 65% and 100% of the OEM tire diameter. Leading and trailing idler wheel assemblies are mounted on the frame. An endless track having an inner surface is disposed around the drive wheel, the leading and trailing idler wheel assemblies. The endless track has an unsupported portion between the drive wheel and one of the leading and trailing idler wheel assemblies. The unsupported portion has a length and a center. The unsupported portion deflects a distance of between 8% and 12% of its length on application of a 25-lb. force at its center.

Track system to be mounted on a vehicle in place of a rotatable OEM tire/wheel assembly, including: A frame. A drive wheel is rotatably mounted on the frame, operatively connectable to the drive shaft of the vehicle, and has a diameter of between 65% and 100% of the OEM tire diameter. Leading and trailing idler wheel assemblies are mounted on the frame. An endless track having an inner surface is disposed around the drive wheel, the leading and trailing idler wheel assemblies. The endless track has an unsupported portion between the drive wheel and one of the leading and trailing idler wheel assemblies. The unsupported portion has a length and a center. The unsupported portion deflects a distance of between 8% and 12% of its length on application of a 25-lb. force at its center.

A rugged and compact articulated wheel with at least two hubs, and wheeled vehicles that include one or more of such articulated wheels.