Abstract: Embodiments disclosed herein are directed to flow assays including at least one electrically-actuated valve configured to control fluid flow. Methods of operating such flow assays are also disclosed.

Abstract: A body fluid sampling device is provided. A mesh (120) may be used to guide blood or fluid to travel directly form the wound to an analyte detecting port on the cartridge (121). Thus the volume of blood or body fluid produced at the wound site irregardless of its droplet geometry can be reliable and substantially completely transported to the analyte detecting member (150) for measurement.

Abstract: Exothermic and/or endothermic chemical reactions in combination with phase change materials can produce output temperature(s) within strict tolerances without requiring expensive and complicated external equipment to generate and maintain an output temperature. Similarly, an exothermic phase change material, which generates heat as a consequence of crystallizing a supercooled liquid, can generate heat at a constant temperature, without requiring expensive and complicated external equipment, as a consequence of the liquid form of the exothermic phase change material being in equilibrium with the solid form of the exothermic phase change material. Numerous biological and chemical processes and/or diagnostic devices require a constant temperature or temperatures for set periods of time.

Abstract: A body fluid sampling device is provided. A mesh (120) may be used to guide blood or fluid to travel directly form the wound to an analyte detecting port on the cartridge (121). Theus the volume of blood or body fluid produced at the wound site irregardless of its droplet geometry can be reliable and substantially completely transported to the analyte detecting member (150) for measurement.

Abstract: Exothermic and/or endothermic chemical reactions in combination with phase change materials can produce output temperature(s) within strict tolerances without requiring expensive and complicated external equipment to generate and maintain an output temperature. Similarly, an exothermic phase change material, which generates heat as a consequence of crystallizing a supercooled liquid, can generate heat at a constant temperature, without requiring expensive and complicated external equipment, as a consequence of the liquid form of the exothermic phase change material being in equilibrium with the solid form of the exothermic phase change material. Numerous biological and chemical processes and/or diagnostic devices require a constant temperature or temperatures for set periods of time.

Abstract: The invention relates to a compressor assembly, where the inlet port of a liquid-piston rotary compressor is coupled to a suction line and the outlet port of the compressor is coupled to a storage tank. An air-discharge line and a return line leading to the liquid-piston rotary compressor are coupled to the storage tank which recirculate operating liquid. Furthermore, an after-cooler device having a primary and a secondary zone is provided, which is connected with its primary zone to the suction line and, its secondary zone, to the air-discharge line. The condensate being produced in the after-cooler device is recirculated into the circulation zone of the operating liquid.

Abstract: A liquid ring machine having a housing in which there is rotatably arranged a rotor having its axis displaced by an amount of eccentricity with respect to the axis of the housing. The liquid ring machine is capable of optimal use in simple manner for both vacuum and compression operations. This result is obtained by ensuring that amount of eccentricity from the housing axis to the rotor axis is directed to oppose the direction of the force of gravity in vacuum operations and is directed in the direction of the force of gravity in compression operations.