Blood pressure detector

Claim 1

IN A BLOOD PRESSURE DETECTOR, MEANS INCLUDING AN INFLATABLE CUFF AND A PULSE PICK-UP FOR RESTRICTING FLOW OF BLOOD AND SENSING THE FLOW OF BLOOD SO RESTRICTED, MEANS INCLUDING A PRESSURE TRANSDUCER AND A PAIR OF DIGITAL VOLTMETERS COUPLED TO SAID CUP FOR REPORTING THE DIASTOLIC AND SYSTOLIC PRESSURES, MEANS INCLUDING A SOURCE OF PRESSURE FLUID FOR INFLATING SAID CUFF AND COUPLED THERETO, MEANS FOR COUPLING SAID PULSE PICKUP TO SAID VOLTMETERS, INCLUDING SEPARATE GATING LINES FOR ENERGIZING SAID VOLTMETERS TO RESPOND TO THE OUTPUT FROM SAID TRANSDUCER, AND MEANS INCLUDING A PULSE MEMORY CIRCUIT IN THE GATING LINE COUPLING SAID PULSE PICK-UP TO THE DIASTOLIC PRESSURE-REPORTING VOLTMETER, SAID PULSE MEMORY CIRCUIT COMPRISING FIRST MEANS INCLUDING A FIRST DIODE AND A FIRST RC CIRCUIT, SECOND MEANS INCLUDING A SECOND DIODE AND A SECOND RC CIRCUIT, AND MEANS INTERCONNECTING SAID FIRST AND SECOND MEANS FOR OPPOSING THE VOLTAGE IN SAID FIRST RC CIRCUIT AGAINST THE VOLTAGE APPLIED TO SAID PULSE MEMORY CIRCUIT WHEREBY SAID PULSE MEMORY CIRCUIT IS RESPONSIVE TO DECREASE IN AMPLITUDE OF SUCCESSIVE PULSES FROM SAID PULSE PICK-UP TO DEENERGIZE SAID DIASTOLIC PRESSURE-REPORTING VOLTMETER UPON DECREASE IN PULSE AMPLITUDE.