The present invention pertains to differential pressure transducers. In an embodiment of the invention, a differential pressure transducer includes a transducer housing, a diaphragm, a bellows, and a sensing assembly. The transducer housing, diaphragm, and bellows are coupled to form a pressure chamber....http://www.google.de/patents/US7434472?utm_source=gb-gplus-sharePatent US7434472 - Differential pressure transducer configurations including displacement sensor
