| 20080257055 | Mechanically Calibrated Analog Transducer for Position or a Related Physical Quantity - An analogue position transducer, usable for example as a pressure switch in a household appliance, including a rigid casing accommodating a deformable membrane sensitive to hydraulic pressure, a first element engaged to the membrane so as to be mobile along with at least one portion of membrane in a predetermined direction (A) and a second element fixed to the casing and operatively coupled with the first element to provide a signal variable according to the relative position of the first element with respect to the second; in which between said first element and a portion of membrane there are interposed means for varying, along said predetermined direction, the relative position of said first element with respect to the portion of the membrane; the transducer also includes a contrast spring for the membrane fitted and preloaded between the casing and the membrane itself and means for adjusting the preload of the contrast spring. | 10-23-2008 |
