A peristaltic pump comprises a drive assembly, a hose pump, and a hose bracket. The drive assembly is rotatably disposed within a frame to move a roller along a pumping path with respect to the frame. The pump hose has rigid hose ends connected by a bendable hose section with limited flexibility tending to bias the pump hose towards a substantially unbent shape. The hose bracket has a rigid body with a first central opening sized to receive the rigid hose ends at first and second retention locations, such that the natural bias of the pump hose towards a substantially unbent shape retains the hose ends within the first and second retention locations, positioning the bendable hose section along the pumping path of the roller.

A machine for making liquid or semi-liquid food products, specifically ice cream, includes a vessel for processing liquid or semi-liquid base products by means of a stirring device driven by a motor. The mixture in the vessel is transferred through a duct, along which movement means for moving the mixture are operatively located, these movement means comprising a rotary device including two juxtaposed discs, on which a series of rollers is mounted in such a way as to press a flexible portion of the duct, and an opposing element confronting the rollers.

Pump assemblies and systems are provided. For example, a pump assembly comprises a pump head, a bezel surrounding an outer perimeter of the pump head, a motor, and tubing. The bezel comprises a bezel upper side, a bezel lower side opposite the bezel upper side, a bezel inlet side extending from the bezel upper side to the bezel lower side, and a bezel outlet side opposite the bezel inlet side and extending from the bezel upper side to the bezel lower side. The bezel defines an inlet channel on the bezel inlet side and an outlet channel on the bezel outlet side, each of the inlet channel and the outlet channel guiding the tubing into the pump head. An exemplary pump system comprises a plurality of pump assemblies that each supply a fluid to a cooling circuit and a base for supporting the plurality of pump assemblies.

Pump assemblies and systems are provided. For example, a pump assembly comprises a pump head, a bezel surrounding an outer perimeter of the pump head, a motor, and tubing. The bezel comprises a bezel upper side, a bezel lower side opposite the bezel upper side, a bezel inlet side extending from the bezel upper side to the bezel lower side, and a bezel outlet side opposite the bezel inlet side and extending from the bezel upper side to the bezel lower side. The bezel defines an inlet channel on the bezel inlet side and an outlet channel on the bezel outlet side, each of the inlet channel and the outlet channel guiding the tubing into the pump head. An exemplary pump system comprises a plurality of pump assemblies that each supply a fluid to a cooling circuit and a base for supporting the plurality of pump assemblies.

A device for performing a microfluidic assay on a chip comprising, a microfluidics chip, one or more fluid receptacles on the chip for receiving a fluid, a plurality of pneumatic pumps arrayed on the chip, each pump having a discharge channel leading to a rectifier on the chip, and a reaction chamber in fluid communication with each of the rectifiers, wherein a pressure on the pressurized fluid source drives fluid from the fluid receptacle into the incoming fluid channel connecting the fluid receptacle to the pump, through the pump and into the discharge channel, through the discharge channel to the rectifier, and through the rectifier into the reaction chamber, wherein the pump is configured to generate droplets of a pre-determined size, wherein the rectifiers prevent backflow of the droplets, and wherein droplets are combined in the reaction chamber, the chamber facilitating an assay being performed on the chip.

A device for performing a microfluidic assay on a chip comprising, a microfluidics chip, one or more fluid receptacles on the chip for receiving a fluid, a plurality of pneumatic pumps arrayed on the chip, each pump having a discharge channel leading to a rectifier on the chip, and a reaction chamber in fluid communication with each of the rectifiers, wherein a pressure on the pressurized fluid source drives fluid from the fluid receptacle into the incoming fluid channel connecting the fluid receptacle to the pump, through the pump and into the discharge channel, through the discharge channel to the rectifier, and through the rectifier into the reaction chamber, wherein the pump is configured to generate droplets of a pre-determined size, wherein the rectifiers prevent backflow of the droplets, and wherein droplets are combined in the reaction chamber, the chamber facilitating an assay being performed on the chip.

Hydro excavation vacuum apparatus that process spoil material onboard the apparatus by separating water from the cut earthen material are disclosed.

Hydro excavation vacuum apparatus that process spoil material onboard the apparatus by separating water from the cut earthen material are disclosed.

Hydro excavation vacuum apparatus that process spoil material onboard the apparatus by separating water from the cut earthen material are disclosed.

Hydro excavation vacuum apparatus that process spoil material onboard the apparatus by separating water from the cut earthen material are disclosed.