Variable resistance pressure presponsive transducer

Claim 1

A DEVICE TO TRANSLATE FLUID PRESSURE INTO A MEASURABLE ELECTRICAL SIGNAL COMPRISED OF A FLEXIBLE FLAT DIAPHRAGM ADAPTED TO BE FIXED ABOUT ITS PERIPHERAL EDGE, AN ELONGATED ELECTRICAL RESISTANCE MEMBER OF RECTANGULAR CROSS SECTION FIXED TO THE SURFACE OF SAID FLEXIBLE DIAPHRAGM ON ONE OF ITS NARROW EDGES SPIRALLING FROM THE CENTER OF SAID FLEXIBLE DIAPHRAGM TO ITS EDGE, A SECOND ELONGATED ELECTRICAL RESISTANCE MEMBER OF IDENTICAL CROSS SECTION TO SAID FIRST ELECTRICAL RESISTANCE MEMBER SPIRALLED FROM THE CENTER TO THE EDGE OF SAID FLEXIBLE DIAPHRAGM IN PARALLEL INSULATED RELATIONSHIP FROM THE FIRST SAID RESISTANCE MEMBER, A DISC-SHAPED CONVEX ELECTRICAL CONDUCTIVE WIPER PLATE FIXED AT ITS CENTER TO THE CENTER OF SAID FLEXIBLE DIAPHRAGM AND FACING SAID DIAPHRAGM, SAID CONVEX WIPER PLATE CONTACTING SAID FIRST AND SECOND RESISTANCE MEMBERS ON THEIR NARROW EDGES OPPOSITE TO THE NARROW EDGES FIXED ON THE SURFACE OF SAID FLEXIBLE DIAPHRAGM AT A SINGLE POINT SO AS TO FORM AN ELECTRICAL CONDUCTING MEANS FROM SAID FIRST RESISTANCE MEMBER TO SAID SECOND RESISTANCE MEMBER, MEANS TO APPLY AN ELECTRICAL POTENTIAL BETWEEN SAID RESISTANCE MEMBER AT THE EDGE OF SAID FLEXIBLE DIAPHRAGM, MEANS TO APPLY A PRESSURE DIFFERENCE BETWEEN THE OPPOSITE SIDES OF SAID DIAPHRAGM SO THAT SAID DIAPHRAGM WILL FLEX TO CAUSE SAID DISC-SHAPED WIPER MEMBER TO VARY ITS POINT OF CONTACT WITH SAID RESISTANCE MEMBER SO AS TO VARY THE RESISTANCE BETWEEN THE ENDS OF SAID FIRST RESISTANCE MEMBER AND SAID SECOND RESISTANCE MEMBER AT THE EDGE OF SAID DIAPHRAGM AND MEANS TO MEASURE SAID RESISTANCE.