Differential pressure transducer

Claim 1

A DIFFERENTIAL PRESSURE TRANSDUCER COMPRISING A HOUSING HAVING SEPARABLE BODY SECTIONS, EACH BODY SECTION HAVING A RECESS FORMED THEREIN OPENING THROUGH THE OUTER END, A RIB PORTION FORMED ON THE OUTER END OF EACH BODY SECTION SURROUNDING SAID RECESS, EACH BODY SECTION HAVING THE INNER END PORTION FORMED WITH A COMPARTMENT OPENING THROUGH THE INNER END, THE COMPARTMENTS IN EACH BODY SECTION COMMUNICATING WITH EACH OTHER AND SAID RECESSES IN ASSEMBLED RELATION OF SAID BODY SECTIONS TO FORM A SINGLE COMPARTMENT WITHIN SAID HOUSING EXTENDING BETWEEN THE OUTER ENDS OF SAID HOUSING, A SEAT PORTION FORMED ON THE INNER PORTION OF ONE OF SAID BODY SECTIONS, A FORCE RESPONSIVE MEMBER HAVING A BASE PORRTION MOUNTED ON SAID SEAT PORTION AND A HEAD MEMBER MOVABLY ENGAGED IN A PASSAGE FORMED IN THE OTHER OF SAID BODY SECTIONS EXTENDING BETWEEN SAID COMPARTMENT AND RECESS THEREIN, SAID BODY SECTIONS AND SAID BASE PORTION AND HEAD MEMBER OF THE FORCE RESPONSIVE MEMBER EACH HAVING ALIGNED PASSAGES FORMED THEREIN, A FORCE TRANSMITTING SHAFT EXTENDING THROUGH SAID ALIGNED PASSAGES AND HAVING OPPOSITE EXTREMITIES LOCATED IN THE RECESSES IN THE ENDS OF SAID BODY SECTIONS, A PAIR OF CIRCULAR FORCE TRANSMITTING PLATES HAVING PARALLEL OPPOSITE FACES EACH MOUNTED IN ONE OF SAID RECESSES IN THE OUTER END OF SAID BODY SECTIONS, MEANS RIGIDLY ATTACHING THE CENTRAL PORTION OF SAID PLATES TO OPPOSITE ENDS OF SAID SHAFT, WITH THE INNER SURFACES SPACED A SLIGHT DISTANCE FROM THE ADJACENT PORTIONS OF SAID BODY SECTIONS AT THE INNER END OF SAID RECESSES, MEANS ATTACHING SAID SHAFT TO THE HEAD MEMBER OF SAID FORCE RESPONSIVE MEMBER FOR TRANSMITTING FORCES APPLIED TO SAID SHAFT BY SAID PLATES TO THE FORCE RESPONSIVE MEMBER, A PAIR OF FLEXIBLE DIAPHRAGMS EACH APPLIED OVER THE OUTER FACE OF ONE OF SAID PLATES AND THE ADJACENT RIB PORTION FOR SEALING THE OPEN ENDS OF SAID RECESSES, A PAIR OF CAP MEMBERS EACH APPLIED TO ONE END OF SAID HOUSING, EACH CAP MEMBER HAVING A CLAMPING PORTION ENGAGING THE MARGINAL PORTION OF A DIAPHRAGM IN OPPOSED RELATION TO THE END OF SAID RIB PORTION AND HAVING A PASSAGE FOR FLUID TO ENGAGE SAID DIAPHRAGM ON THE OUTER SIDE FOR APPLYING PRESSURE TO SAID PLATES AT OPPOSITE ENDS OF SAID HOUSING, MEANS DETACHABLY CONNECTING SAID CAP MEMBERS TO SAID HOUSING, AND MEANS SENSITIVE TO FORCE VARIATIONS APPLIED TO SAID FORCE RESPONSIVE MEMBER FOR REGISTERING PRESSURE DIFFERENTIALS IN FLUIDS APPLIED TO OPPOSITE ENDS OF SAID SHAFT.