There is provided a gas mixer arrangement comprising a first gas source for supplying a first gas; a second gas source for supplying a second gas different from said first gas; first and second flow regulation devices for regulating the respective flow of the first gas and second gases from the first and second gas sources; a mixer; and an outlet. The mixer is located downstream of the first and second flow regulation devices and arranged, in use, to mix the first and second gases to provide a mixed gas to the outlet. The gas mixer arrangement further comprises a meter comprising a first sensor assembly operable to determine the average molecular weight of the mixed gas and including a high-frequency planar piezoelectric crystal oscillator in contact with the mixed gas, a second sensor assembly operable to determine the pressure of the gas downstream of one of the first or second flow regulation devices, and a controller operable, in response to the average molecular weight of the mixed gas and said gas pressure, to control automatically said first and second flow regulation devices to control the relative proportion of the first and second gases in said mixed gas and the pressure or mass flow rate of the mixed gas from the outlet.

A dissolution apparatus configured to dissolve a waste resin in a dissolution tank with a solvent. The dissolution apparatus includes: a supply device configured to supply the waste resin and the solvent into the dissolution tank; a heating device configured to heat the waste resin and the solvent supplied to the dissolution tank; a stirrer configured to stir the waste resin and the solvent, heated by the heating device; a torque sensor configured to detect a load torque acting on the stirrer; and a microprocessor. The microprocessor is configured to perform: calculating a viscosity of a solution of the waste resin and the solvent based on the load torque detected by the torque sensor, and controlling at least one of the supply device and the heating device such that the viscosity calculated in the calculating becomes less than a predetermined value.

Systems and methods for the automated demineralization of bone and decellularization of soft tissue include a mixing assembly communicatively coupled with a control and reporting system. The mixing assembly includes a housing that supports a cannister sub-assembly forming a mixing chamber having a reagent inlet, a reagent outlet, and an internal fluid agitator. A motor is operably coupled with the agitator and configured to spin the agitator in first and second directions relative to the cannister, thereby agitating fluid contained within the mixing chamber. At least one pump is configured to progressively inject measured quantities of a plurality of reagents into the mixing chamber. The associated control and reporting system includes a user terminal that displays a graphical user interface enabling a user to initiate an automated demineralization or decellularization procedure in which the mixing assembly demineralizes tissue placed within the mixing chamber. Other embodiments are also disclosed.

A system and process for mixing and distributing building materials. This system and process can also include a way or a means or calibrating the mixing of these materials. This system and process can also include a system for tracking the materials that flow through the system, and for controlling the type of material used in the system.

A gravity-fed treatment apparatus for the dispersion of an additive into a flow of granulated matter includes a vertical treatment chamber comprising a top inlet, a bottom outlet, and at least one wall disposed between the top and bottom defining an interior therebetween. The chamber further includes a feed port through the at least one wall and a plurality of vortex baffles, each extending angularly away from the wall into the interior at a respective angle. Each vortex baffle includes a flat portion and a flaring portion where the flaring portion curves away from a plane encompassing a surface of the flat portion. A portion of the flow of granulated matter spirals around an axis passing through the top and bottom of the chamber due to gravity and the shape of the vortex baffles.

The invention relates to a cartridge system with two containers (2a, 2b) respectively having an outlet connector (4a, 4b), and a common connection section for a mixer (1) having a positioning aperture (7), and with a static mixer (1) with inlet connectors (14a, 14b) and a positioning element (16). The connection section of the cartridge comprises a ring (5) having an inner thread (6) that surrounds the outlet connectors (4a, 4b), whereby the mixer (1) has an outer thread (11). Further, the invention relates to a static mixer (1) for a cartridge system of this type.

In a liquid stirring method, after a second liquid is discharged into a reaction container accommodating a first liquid from a dispensing probe provided with a dispensing tip at the leading end thereof, a mixture of the first liquid and second liquid in the container is stirred by being sucked out and discharged by the dispensing probe. The number of stirrings through sucking out and discharging is changed according to the total volume of the first liquid and second liquid. If the total volume of the first liquid and second liquid is below a preset threshold, sucking out and discharging is repeated for a prescribed number of times.

The invention relates to a cartridge system with two containers (2a, 2b) respectively having an outlet connector (4a, 4b), and a common connection section for a mixer (1) having a positioning aperture (7), and with a static mixer (1) with inlet connectors (14a, 14b) and a positioning element (16). The connection section of the cartridge comprises a ring (5) having an inner thread (6) that surrounds the outlet connectors (4a, 4b), whereby the mixer (1) has an outer thread (11). Further, the invention relates to a static mixer (1) for a cartridge system of this type.

The invention relates to a cartridge system with two containers (2a, 2b) respectively having an outlet connector (4a, 4b), and a common connection section for a mixer (1) having a positioning aperture (7), and with a static mixer (1) with inlet connectors (14a, 14b) and a positioning element (16). The connection section of the cartridge comprises a ring (5) having an inner thread (6) that surrounds the outlet connectors (4a, 4b), whereby the mixer (1) has an outer thread (11). Further, the invention relates to a static mixer (1) for a cartridge system of this type.

A module includes a housing, a sealing feature, a locking feature, and an agitator. The housing has an opening separating inner and outer surfaces and a boss that extends through the housing such that part of the outer surface forms an inner bore of the boss having a terminus pointing toward the opening. The agitator has a base, a shaft, and a mixing element coupled to the base such that the base, in cooperation with the sealing feature, circumferentially seals the opening of the housing to form a cavity defined by the inner surface. The shaft passes through the inner bore. The locking feature when engaged permits independent or simultaneous translational and rotational movement of the shaft while an area between the terminus of the boss and the shaft remains mechanically sealed during the movement against liquid or powder encroachment into a clean area of the inner bore.