Terminal checking device

Claim 1

A CHECKING DEVICE COMPRISING: (A) A PRESSURE PIN GUIDING HOUSING, (B) A PLURALITY OF SPACED PRESSURE PINS HAVING UPPER AND LOWER ENDS DISPOSED FOR RECIPROCATING MOTION ALONG THEIR LONGITUDINAL AXES WITHIN SAID HOUSING, (C) A CYLINDER BLOCK DISPOSED IN ABUTTING RELATION WITH SAID HOUSING, SAID CYLINDER BLOCK HAVING A PLURALITY OF BORES EXTENDING THERETHROUGH, (D) A PLURALITY OF CYLINDRICAL PISTONS HAVING FIRST AND SECOND END PORTIONS DISPOSED WITHIN THE BORES OF SAID CYLINDER BLOCK FOR RECIPROCAL MOTION ALONG THEIR LONGITUDINAL AXEX, SAID PISTOND HAVING A FLUID SEAL WITHIN SAID BORES, SAID FIRST END PORTION OF SAID PISTON HAVING A SURFACE ADAPTED TO RECEIVE FLUID UNDER PRESSURE, (E) A PUSH ARM INTEGRALLY CONNECTED TO SAID SECOND END PORTION OF EACH OF SAID PISTONS AND DISPOSED IN ABUTTING CONTACT WITH SAID UPPER END OF ONE OF SAID SPACED PINS, (F) A MANIFOLD DISPOSED IN ABUTTING RELATION WITH SAID CYLINDER BLOCK, COMPRISING A FLUID COMPARTMENT INTO WHICH THE FLUID RECEIVING SURFACE OF THE PISTONS OPEN AND VALVE MEANS FOR CONTROLLING THE FLOW OF PRESSURIZED FLUID INTO AND OUT OF SAID COMPARTMENT, AND (G) A SOURCE OF FLUID UNDER PRESSURE WHEREBY THE ADMITTANCE OF SAID FLUID INTO SAID COMPARTMENT CAUSES THE PISTONS OPENING THEREINTO TO MOVE AXIALLY ALONG THEIR LONGITUDINAL AXES FROM AND UPPERMOST POSITION TO A LOWERMOST POSITION, THEREBY, THROUGH THE PUSH ARMS, MOVING SAID PRESSURE PINS AXIALLY ALONG THEIR LONGITUDINAL AXES FROM AN UPPERMOST POSITION TO A LOWERMOST POSITION.