Abstract: The present invention relates to a multipurpose flow module comprising flow plates and/or heat exchanger plates stacked together, which flow plate having a flow channel and one or more connection ports. To each flow plate or heat exchanger plate one or more barrier plates may be attached. The present invention further relates to a method for extraction, for reaction, for mixing, or combinations thereof in the multipurpose flow module, and to uses of the multipurpose flow module.

Abstract: A screw conveyor intended and formed for use in a decanter centrifuge for separation of solid particles from a fluid compound, comprising a central body, at least one conveyor thread and at least one baffle bridging a flow path formed between different parts of the conveyor thread. The screw conveyor has at least two originally separate parts, each of which comprises a portion of said conveyor thread and which are kept together axially. The baffle constitutes a separate member arranged to be kept in place between said parts of the screw conveyor, when these parts are kept together axially, and has a portion which forms a part of the conveyor thread in an area where the conveyor thread intersects with and extends past the baffle.

Abstract: A screw conveyor intended and formed for use in a decanter centrifuge for separation of solid particles from a fluid compound, comprising a central body, at least one conveyor thread and at least one baffle bridging a flow path formed between different parts of the conveyor thread. The screw conveyor has at least two originally separate parts, each of which comprises a portion of said conveyor thread and which are kept together axially. The baffle constitutes a separate member arranged to be kept in place between said parts of the screw conveyor, when these parts are kept together axially, and has a portion which forms a part of the conveyor thread in an area where the conveyor thread intersects with and extends past the baffle.

Abstract: A valve, particularly suited for use with a patient ventilation system to regulate respiration gas flow to and from the lungs of a patient has a substantially parallel, co-axial, arrangement of inner and outer fluid flow passages for conducting gas through the valve to and from a common flow conduit connected to the patient's lungs, each passage having gas flowing therein in a different direction. A cuff is provided which is inflatable to control the flow of fluid through the valve. The cuff is disposed so as to be able to form a fluid-tight seal against one or other of the facing surfaces of the inner and the outer flow passages when inflated, and to block flow through the outer passage in a timed relationship with the breathing cycle of the patient.

Abstract: A vaporizer for vaporizing a liquid anaesthetic has an inlet for a carrier gas, an outlet for the carrier gas and vaporized anaesthetic, a flow channel connecting the inlet to the outlet, a chamber for liquid anaesthetic, a first connection between the flow channel and the chamber, a second connection between the flow channel and the chamber downstream from the first connection and a throttle in the flow channel between the first connection and the second connection. The second connection has a conduit, one end of which is immersed in the liquid anaesthetic, and a valve connected to the other end of the conduit so as to increase safety, prevent leakage and erroneous dispensing and allow the use of liquid anaesthetics with a low boiling point. The valve is devised to open when there is a predetermined drop in pressure across the throttle, allowing liquid anaesthetic to be dispensed into the flow channel.

Abstract: A valve for regulating a flow of gas, has a valve body with an inlet for the gas to be regulated, an outlet for a regulated flow of a gas, a valve seat with a valve opening, a moving closure part having a tensioned membrane mounted inside the valve body and a plunger, which is movable by a plunger actuator, whose end acts on the membrane, causing the closure part to close and open the valve opening and regulate the flow of gas through same. The flow of gas can be simply and inexpensively regulated, with great accuracy and repeatability and which forms a hermetic seal when the valve is in the closed position, a rigid, flat plate is be arranged opposite the valve seat the plate having a surface area which is at least equal to the surface area of the valve seat.