Described are systems, methods, and apparatus for managing the movement of inventory items within a materials handling facility using rollable containers and a gravity feed conveyance system. Inventory items are placed in the rollable containers and are routed to different locations within the materials handling facility along the gravity feed conveyance system, through use of gravitational forces that cause the rollable containers to roll. By using gravity to route inventory items within the materials handling facility, the energy and power requirements for the materials handling facility are reduced, which reduces overhead costs and which is better for the environment.

The storage-and-retrieval cell for a parcel-handling logistics platform includes shuttle robots that position parcels in storage locations and that retrieve the parcels therefrom, which locations form two rows of storage locations that extend along a longitudinal direction, and four half-rows of storage locations that are disposed back-to-back in the longitudinal direction between the two rows, a hopper being open in the upper floor between one pair of half-rows and the other pair of half-rows, the hopper being designed to allow the parcels to pass through it while they are being retrieved, the cell further including nesting trolleys each of which is suitable for being hitched to a shuttle robot and which are suitable for nesting together in the same storage location, and, at the edge of the hopper, an unloading device for unloading a nesting trolley by sweeping its deck.

An improved modular chute comprising a stanchion comprising a plurality of rib connection points; a plurality of rib assemblies extending from the stanchion, each of the rib assemblies comprising at least a first rib, a second rib, and a tie rod connecting the first rib to the second rib; and a lining disposed within one or more of the rib assemblies, wherein the lining comprises a plurality of lining sections.

A helical conveyor for transporting products in downward direction by means of gravity comprises a frame and a helical track extending around an upright centerline. The helical track is supported by the frame and comprises a bottom for bearing a product. The bottom has an inclination angle in a direction (X) along the helical track. At least a portion of the bottom is formed by a transport surface of a drivable conveying system such that the transport surface has a predefined speed in downward direction (X) along the helical track. The inclination angle at an inner bend of the transport surface of the conveying system is larger than 20?.

Disclosed are various embodiments for robotic item sortation and optimization along the vertical axis in a conveyor-based system. A robotic system may be mounted above or adjacent to a conveyor system that moves items along a conveyor belt or similar device. Once an item is laterally diverted from the conveyor system, the robotic system may collect the item at a respective holding station and move the item along a vertical axis for placement in one of a plurality of vertically-configured item handling devices.

The present disclosure relates to a device for guiding and pivoting bodies via sliding the bodies through the device. The device is produced using a generative manufacturing method. A system includes at least two of the devices arranged in parallel, a conveyor device, and a control device. The control device controls the conveyor device responsive to receiving a control command and feeds bodies selectively to one of the devices. A treatment line for polyethylene terephthalate (PET) containers includes a process path, a preform storage unit, a preform oven of a stretch blow-molding machine, and the device arranged between the preform storage unit and the preform oven. A treatment line for PET containers includes a process path, a container closure storage unit, a closing unit for closing the PET containers, and the device arranged between the container closure storage unit and the closing unit.

The present disclosure is directed to underwater seismic exploration with a helical conveyor and skid structure. The system can include an underwater vehicle comprising a sensor to identify a case having a hydrodynamic shape, wherein the case stores one or more ocean bottom seismometer (OBS) units. The underwater vehicle includes an arm. The underwater vehicle includes an actuator to position the arm in an open state above a cap of the case, or to close the arm. The underwater vehicle can move the arm to a bottom portion of the case opposite the cap. An opening of the case can be aligned with the conveyor of the underwater vehicle. The conveyor can receive, via the opening of the case, a first OBS unit of the one or more OBS units. The conveyor can move the first OBS unit to the seabed to acquire seismic data from the seabed.

Provided are a helically traveling carriage and a helically traveling cleaning machine capable of efficiently performing a maintenance process, such as cleaning, with respect to a helical structure formed by winding a helical wall around a column at a central section of a vertically extending cylindrical wall. This helically traveling carriage includes a lower moving-and-contacting part that rolls or slides on a helical wall's upper surface, a lateral bridge mechanism that bridges a column's outer circumferential surface and a cylindrical wall's inner circumferential surface, the lateral bridge mechanism having, on one end thereof, a first moving-and-contacting part that rolls or slides on the cylindrical wall's inner circumferential surface, and having, on the other end, a second moving-and-contacting part that rolls or slides on the column's outer circumferential surface, and a rotary engagement part that rotatably engages with the column by laterally receiving a portion of the column.

The present disclosure is directed to underwater seismic exploration with a helical conveyor and skid structure. The system can include an underwater vehicle comprising a sensor to identify a case having a hydrodynamic shape, wherein the case stores one or more ocean bottom seismometer (OBS) units. The underwater vehicle includes an arm. The underwater vehicle includes an actuator to position the arm in an open state above a cap of the case, or to close the arm. The underwater vehicle can move the arm to a bottom portion of the case opposite the cap. An opening of the case can be aligned with the conveyor of the underwater vehicle. The conveyor can receive, via the opening of the case, a first OBS unit of the one or more OBS units. The conveyor can move the first OBS unit to the seabed to acquire seismic data from the seabed.