Patent ID: 6523427
Filing Date: 2003-02-25
Classification: G01F

Abstract:
A temperature sensing unit for sensing the temperature of fluid flowing through a meter and outputting a rotational movement to a temperature compensating unit disposed in said meter, said sensing unit comprising:a rotatable shaft having a distal end and a proximal end, the proximal end being connected to the temperature compensating unit in said meter, wherein said rotatable shaft provides a rotational movement to said compensating unit; a connector flange having a proximal end disposed proximal to the temperature compensating unit, said connector flange having an opening therethrough for passage of said rotatable shaft, a temperature sensor probe comprised of a predetermined length of bimetallic coil displaceable in response to temperature changes in the fluid flowing through the meter, said bimetallic coil being disposed around said rotatable shaft, said coil further having a distal end fixably connected to the distal end of said rotatable shaft and a proximal end fixably connected to said connector flange, wherein the connector flange is disposed between the temperature compensating unit and the temperature sensor probe, said coil also having an interior side proximal to said rotatable shaft and an exterior side disposed away from said shaft; and wherein the temperature sensing unit further comprises an elongated tubular sheath disposed around the exterior side of said sensor probe, said sheath having a proximal end contacting said connector flange.