A pneumatic transport system (10), comprising at least one material transport carrier for transporting a pneumatic transportable material (M) in the pneumatic system (10) by means of a pneumatic device (1a) adapted to operate with negative pressure on the material transport carrier to transport the pneumatic transportable material (M) in the pneumatic system (10) comprising one or more tubes (13) forming a continuous transport path (CL), wherein a pressure-drop monitoring element (3a) is provided and adapted to monitor filter performance of a separating filter (16) provided in the transport path (CL) and adapted to separate the material transport carrier and the transportable material (M) in the transport path (CL).

An empties transport system has an airstream transport device with an empties transport conduit, which has a first attachment point for attachment to the reverse vending machine and a second attachment point for attachment to the empties collection container, and an airstream generator, which is attached to the empties transport conduit and is designed to make available, in the empties transport conduit, a transporting airstream by means of which the empties passing via the first attachment point from the reverse vending machine the empties transport conduit are moved to the empties collection container, and an airlock device which is arranged on the first attachment point and via which the empties are transferable from the reverse vending machine to the empties transport conduit.

An empties transport system has an airstream transport device with an empties transport conduit, which has a first attachment point for attachment to the reverse vending machine and a second attachment point for attachment to the empties collection container, and an airstream generator, which is attached to the empties transport conduit and is designed to make available, in the empties transport conduit, a transporting airstream by means of which the empties passing via the first attachment point from the reverse vending machine the empties transport conduit are moved to the empties collection container, and an airlock device which is arranged on the first attachment point and via which the empties are transferable from the reverse vending machine to the empties transport conduit.

A microfabricated sheath flow structure for producing a sheath flow includes a primary sheath flow channel for conveying a sheath fluid, a sample inlet for injecting a sample into the sheath fluid in the primary sheath flow channel, a primary focusing region for focusing the sample within the sheath fluid and a secondary focusing region for providing additional focusing of the sample within the sheath fluid. The secondary focusing region may be formed by a flow channel intersecting the primary sheath flow channel to inject additional sheath fluid into the primary sheath flow channel from a selected direction. A sheath flow system may comprise a plurality of sheath flow structures operating in parallel on a microfluidic chip.

A method of filling packaging with pouches of product comprises conveying a plurality of spaced apart chutes along a first feed path. Each chute is loaded with pouches of product at a chute loading station. Erect boxes are conveyed along a second feed path to a chute unloading station wherein the second feed path is substantially parallel to the first feed path at the chute unloading station. The pouches of product are transferred from the chutes into interior spaces of the erect boxes at the chute unloading station as the chutes move along the first feed path and the erect boxes move along the second feed path. The chutes are returned to the chute loading station to be filled with pouches of product.

An apparatus for packaging of loose product includes a loading station, a box forming station and an uploading station. The loading station includes moveable chutes in spaced apart relation. Each chute has an open top, an open upstream end, and an open downstream end. The open top is configured to receive loose product while moving along a first feed path. The box forming station is operable to partially erect boxes in spaced apart relation with first and second open sides and align the first open side of each box with the downstream end of a corresponding chute while moving along a second feed path. The unloading station includes a stationary vacuum head in communication with the second open side of each box. The vacuum head provides a continuous vacuum source along the second feed path operable to move loose product from the chute into the boxes.

An apparatus for packaging of loose product includes a loading station, a box forming station and an uploading station. The loading station includes moveable chutes in spaced apart relation. Each chute has an open top, an open upstream end, and an open downstream end. The open top is configured to receive loose product while moving along a first feed path. The box forming station is operable to partially erect boxes in spaced apart relation with first and second open sides and align the first open side of each box with the downstream end of a corresponding chute while moving along a second feed path. The unloading station includes a stationary vacuum head in communication with the second open side of each box. The vacuum head provides a continuous vacuum source along the second feed path operable to move loose product from the chute into the boxes.

A microfabricated sheath flow structure for producing a sheath flow includes a primary sheath flow channel for conveying a sheath fluid, a sample inlet for injecting a sample into the sheath fluid in the primary sheath flow channel, a primary focusing region for focusing the sample within the sheath fluid and a secondary focusing region for providing additional focusing of the sample within the sheath fluid. The secondary focusing region may be formed by a flow channel intersecting the primary sheath flow channel to inject additional sheath fluid into the primary sheath flow channel from a selected direction. A sheath flow system may comprise a plurality of sheath flow structures operating in parallel on a microfluidic chip.

The method of conveying samples using a continuous flow of pressurized air for conveying elongated items holding samples along a path in a tube system from at least one dispatch station, at which the elongated items are dispatched into the path, to at least one receiver station in the direction of the flow of pressurized air along the path. Individual items are sent in succession by means of pressurized air supplied to the tube system via the dispatch station and via a by-pass duct that extends around the at least one dispatch station from an upstream to a downstream side thereof. A constant flow of pressurized air is conducted via the by-pass around the at least one dispatch station into said path by which items already underway along the path in the tube system remain moving during dispatching of an item into the path.

A mechanically-controlled vacuum throttle for a continuous dense phase pneumatic conveying system and related method is provided. The system includes a pneumatic conveyance line, a particulate material insertion assembly, a positive displacement blower, a transport fluid intake assembly, and a vacuum throttling assembly. The vacuum throttling assembly is configured to control the flow of air mass density into the blower and through the conveyance line. A portion of the vacuum throttling assembly is tied in to the conveyance line pressure downstream of the blower and adjusts the air mass density flow depending on the downstream pressure. Preferably, the vacuum throttling assembly includes an obstruction element and an opening collar, where the obstruction element is moveable relative to the opening collar and the air mass density flow is adjusted depending on the amount of movement of the obstruction element relative to the opening collar.