A dosage device for extruding a monocomponent or a bicomponent polymeric product, particularly for an automatic machine for forming a spacer frame, includes a first dosage assembly and a separate second dosage assembly for the dosage and feeding of the product, which can be activated, in a first feeding step and in a third feeding step, alternately so that one of them provides continuity of flow to an extrusion nozzle while the other one is in the reloading step. The first and second dosage assemblies are activated, in a second swapping step that is intermediate with respect to the first and third feeding steps, simultaneously and jointly, one of them having a flow-rate ramp that passes from the steady-state value to zero and the other one complementarily having a flow-rate ramp that passes from zero to the steady-state value.

Systems, feeder devices and methods for moving particulate hot melt adhesive from an adhesive supply to an adhesive melter. A feeder device includes a body having an inlet and an outlet, and an interior communicating with the inlet and the outlet. The inlet is configured to receive particulate hot melt adhesive from an outlet of the adhesive supply, and the outlet is configured to provide particulate hot melt adhesive to an inlet of the adhesive melter. The feeder device further includes a mechanical agitator positioned in the interior for urging the particulate hot melt adhesive in a flow direction toward the outlet.

An apparatus and method for melting soap fragments to create a soap bar from the soap fragments. The apparatus includes various replaceable molds to create soap bars having various shapes.

An apparatus and method for melting soap fragments to create a soap bar from the soap fragments. The apparatus includes various replaceable molds to create soap bars having various shapes.

Presently disclosed systems and methods for depositing a compound into a void in a sandwich panel are configured to reduce the air pressure in and around the void as the compound flows into the void, thereby reducing the amount of air trapped between the compound and the sandwich panel skin within the void during the repair. Systems may include a dispenser for holding the compound, a vacuum canister, and a valve operable to allow the compound to flow from the dispenser, through at least a portion of the vacuum canister, and into the void. After the compound flows into the void, the system is configured to apply ambient air pressure to the compound and the void, before the compound is allowed to harden or cure. Some such systems are pre-filled with the compound, and/or configured to be disposable after a single use.

An apparatus includes a fixed assembly and a reciprocating assembly. The fixed assembly includes a hopper, a first gas manifold, and a dispensing chamber, and the reciprocating assembly includes a channel assembly defining a channel conduit, a shield plate vertically aligned therewith, and a second gas manifold. The reciprocating assembly may move, in relation to the fixed assembly, to a first position to enable the channel conduit to be filled with bulk compressible material from the hopper, a second position to enable compressible material to be pushed from the channel conduit to the dispensing conduit and to be compressed in the dispensing chamber according to a first gas directed through the channel conduit by the first gas manifold, and a third position to enable the compressed material to be pushed out of the dispensing conduit according to a second gas directed through the dispensing conduit by the second gas manifold.

The present invention relates to a manufacturing device for manufacturing a large amount of micro-scaffolds for a long period of time such that stable and uniform particles can be fabricated. The manufacturing device comprises: a first solution storage portion for storing a polymer support structure solution; a second solution storage portion for storing an emulsifier solution; a gas storage portion connected to each of the first solution storage portion and the second solution storage portion; a pressure control portion for controlling the pressure of the transporting gas flowing into the first solution storage portion and the second solution storage portion from the pressurization portion, respectively; a scaffold injector portion for receiving the polymer support structure solution and the emulsifier solution provided by the transporting gas, respectively; and a scaffold generating portion for receiving the scaffold dispersion discharged through the scaffold injection portion.

The present invention relates to a manufacturing device for manufacturing a large amount of micro-scaffolds for a long period of time such that stable and uniform particles can be fabricated. The manufacturing device comprises: a first solution storage portion for storing a polymer support structure solution; a second solution storage portion for storing an emulsifier solution; a gas storage portion connected to each of the first solution storage portion and the second solution storage portion; a pressure control portion for controlling the pressure of the transporting gas flowing into the first solution storage portion and the second solution storage portion from the pressurization portion, respectively; a scaffold injector portion for receiving the polymer support structure solution and the emulsifier solution provided by the transporting gas, respectively; and a scaffold generating portion for receiving the scaffold dispersion discharged through the scaffold injection portion.

The present invention relates to a 3D bioprinter. The 3D bioprinter, according to the present invention, comprises: a case inside of which a work space is provided; a printing plate installed inside of the case so as slide in the forward, backward, left, and right directions; a first nozzle installed inside the case for dispensing a biomaterial in a solid state on the printing plate; a second nozzle installed inside the case for dispensing a biomaterial in a liquid state on the printing plate; and a control unit for controlling the dispensing by the first nozzle and the second nozzle, wherein the first nozzle and the second nozzle are used to print a single structure by stacking the biomaterial in the solid state and the biomaterial in the liquid state.

The present invention relates to a 3D bioprinter. The 3D bioprinter, according to the present invention, comprises: a case inside of which a work space is provided; a printing plate installed inside of the case so as slide in the forward, backward, left, and right directions; a first nozzle installed inside the case for dispensing a biomaterial in a solid state on the printing plate; a second nozzle installed inside the case for dispensing a biomaterial in a liquid state on the printing plate; and a control unit for controlling the dispensing by the first nozzle and the second nozzle, wherein the first nozzle and the second nozzle are used to print a single structure by stacking the biomaterial in the solid state and the biomaterial in the liquid state.