Praxi Intellectual Property Milano

A distribution device (5) for a liquid-vapor two-phase fluid for a heat exchanger, comprising an inlet duct (6) and a section (7) provided with a plurality of outlet ducts (7a, 7b, 7n) for the liquid-vapor two-phase fluid. The inlet duct (6) comprises a first duct section (6A) and a second duct section (6B) arranged in sequence along the flow direction (F) of the liquid-vapor two-phase fluid through the distribution device (5). The first duct section (6A) has a uniform cross-section and is provided with a plurality of turbulator elements (8a, 8b, 8c, 8d) designed to cause pre-mixing of the liquid phase and vapor phase of the two-phase fluid. The second duct section (6B) has a progressively converging and diverging Venturi-shaped cross-section designed to cause remixing of the liquid phase and vapor phase of the two-phase fluid. The device of the invention offers the advantage of both dividing the two-phase fluid into equal flows in all the supply ducts to the heat exchanger and achieving complete mixing and uniform homogenisation of the liquid phase and the vapor phase in all the supply ducts of the two-phase fluid.

A grinding machine (1) for processing a glass sheet (L) movable along a horizontal transport direction (X), comprising a control unit, at least one tool unit (3, 3A, 3B) movable along a direction (Y) transverse to said transport direction (X) of the glass sheet (L) and having a spindle (12, 12A, 12B), and a detection device (4, 4A, 4B) associated with the tool unit (3, 3A, 3B) and adapted to detect the position of the glass sheet (L) along said transport direction (X). The detection device (4, 4A, 4B) comprises a slider (5, 5A, 5B) movable along a guide direction (C) and bearing a pad (6, 6A, 6B) for contact with an edge of said glass sheet (L), an actuator (7, 7A, 7B) for moving said slider (5, 5A, 5B) along said guide direction (C), and a linear position transducer (8, 8A, 8B) for detecting the position of said slider (5, 5A, 5B) along said guide direction (C). The actuator (7, 7A, 7B) is mounted on an adjustable support (9, 9A, 9B) adapted to move said slider (5, 5A, 5B) reversibly from a first position in which said pad (6, 6A, 6B) is vertically spaced from the movement plane of said glass sheet (L), so as not to interfere with the movement of said glass sheet (L), to a second position in which said pad (6, 6A, 6B) is arranged transversely to the movement plane of said glass sheet (L), so as to be able to engage said edge of the glass sheet (L). Compared to the prior art, the invention offers the advantage of allowing to know the exact position of the glass sheet relative to the spindle of the tool unit that performs the processing of the sheet itself, thanks to a reading of the same position performed directly on the body of the glass sheet.

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A nasogastric device (100, 200, 300) and relative system (10, 100, 200, 300) for enteral feeding (100, 200, 300), the device (100, 200, 300) comprising a nasogastric tube (101) and a tag (102) placed on the flexible tube (101); while the system (10, 100, 200, 300) comprising the nasogastric device (100, 200, 300) and a reader device (10), in its turn, comprising: means (10') for generating a source time varying magnetic field; and means (10") for detecting a derived time varying magnetic field; the tag (102) being a passive resonant structure having a resonance frequency band, and being configured to interfere with the source magnetic field, by changing its amplitude and/or spatial distribution in such a way to originate the derived magnetic field having its own amplitude and distribution, when the source magnetic field has a frequency comprised in the resonance frequency band.

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