Overload stop for pressure transducer

Claim 1

APPARATUS FOR MEASURING FLUID PRESSURE COMPRISING: A CLOSED FLUID COMPARTMENT ADAPTED TO RECEIVE FLUID WHOSE PRESSURE IS TO BE MEASURED, SAID COMPARTMENT HAVING ONE WALL CLOSED BY A DISC-SHAPED DIAPHRAGM HAVING AN AXIS, SAID DIAPHRAGM ADAPTED TO DISTEND FROM FLUID PRESSURE IN SAID COMPARTMENT TO CONFIGURATIONS WHICH VARY WITH THE CHARACTERISTICS OF THE DIAPHRAGM, A HOLLOW CYLINDRICAL HOUSING HAVING AN AXIS SUSBTANTIALLY COINCIDENT WITH THE DIAPHRAGM AXIS AND FIXEDLY SECURED TO SAID COMPARTMENT ADJACENT SAID DIAPHRAGM, A HOLLOW CYLINDRICAL DIAPHRAGM OVERLOAD STOP MEMBER MEANS HAVING AN ANNULAR END SURFACE AND AN AXIS, MEANS FIXEDLY POSITIONING SAID STOP MEMBER IN ACCORDANCE WITH THE CHARACTERISTICS OF SAID DIAPHRAGM UNDER A PREDETERMINED FLUID PRESSURE OVERLOAD CONDITION, WHEREBY SAID STOP PLATE SUBSTANTIALLY CONFORMS TO THE UNIMPEDED CONFIGURATION OF SAID DIAPHRAGM WHEN DISTENDED UNDER SAID PREDETERMINED OVERLOAD FLUID PRESSURE, THEREBY TO MORE UNIFORMLY ABSORB THE FORCE GENERATED BY PRESSURE IN SAID FLUID COMPARTMENT ACTING ON THE DIAPHRAGM; AND A DISPLACEMENT TRANSDUCER POSITIONED AT LEAST PARTIALLY WITHIN SAID OVERLOAD STOP MEMBER AND ENGAGING SAID DIAPHRAGM FOR SENSING THE MAGNITUDE OF ITS DISTENTION.