Apparatus and method to check performance of certain electronic counting systems

Claim 1

APPARATUS CONSISTING OF AN ASSEMBLY OF ELECTROMECHANCICAL DEVICES WHICH APPARATUS CERTIFIES THAT ALL OF ITS OWN SECTIONS, COMPONENTS, AND DEVICES ARE OPERATING CORRECTLY, SAID APPARATUS INCLUDING: COUNTING MEANS TO COUNT SUBSTANTIALLY HIGH SPEED ELECTRICAL IMPULSES DELIVERED TO SAID COUNTER, GATING MEANS TO PASS SAID IMPULSES TO SAID COUNTER WHEN SAID GATE IS OPEN, AND TO STOP SAID IMPULSES FROM REACHING SAID COUNTER WHEN SAID GATE IS CLOSED, SIGNAL MEANS CONSISTING OF A SINGLE DISCRETE ELECTRICAL SIGNAL TO CONTROL THE STATE OF THE SAID GATE SUCH THAT EACH SUCCESSIVE SAID SIGNAL INTRODUCED TO THE CONTROL TERMINALS OF SAID GATE CAUSES SAID GATES TO CHANGE ITS STATE SUCCESSIVELY FROM OPEN TO CLOSED, THEN FROM CLOSED TO OPEN, AND TO CONTINUOUSLY REPEAT SUCH OPERATION, REPETITIVE TRANSDUCER MEANS TO GENERATE A SERIES OF SUBSTANTIALLY SIMILAR ELECTRICAL IMPULSES SUCH THAT EXACTLY THE SAME NUMBER OF SAID IMPULSES ARE GENERATED EACH TIME SAID TRANSDUCER REPEATS ITS NORMAL REPETITIVE MECHANICAL CYCLE, CONTACTING MEANS ATTACHED TO SAID TRANSDUCER TO PRODUCE A SINGLE SAID SIGNAL DURING EACH SAID MECHANICAL CYCLE OF SAID TRANSDUCER, CABLE MEANS TO CONDUCT SAID IMPULSES AND SAID SIGNALS FROM SAID TRANSDUCER TO SAID GATE AND SAID COUNTER. SWITCHING MEANS TO CHANNEL SAID SIGNALS INTO CONTROL TERMINALS OF SAID GATE DURING CERTIFICATION TESTS, AND TO EXCLUDE SAID SIGNALS FROM CONTROL TERMINALS OF SAID GATE WHEN SAID APPARATUS IS PERFORMING OTHER FUNCTIONS.