Resistance welding process indicating system
First Claim
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1. IN COMBINATION WITH AN ELECTRIC RESISTANCE WELDING SYSTEM, INCLUDING A POWER SUPPLY, A LOAD CIRCUIT INCLUDING A PAIR OF WELDING ELECTRODES, A PAIR OF CONDUCTORS ELECTRICALLY CONNECTING SAID ELECTRODES TO SAID POWER SUPPLY, AND A CONSTANT SIGNAL SOURCE, A WELDING PROCESS INDICATING DEVICE COMPRISING:
- A MULTICONTACT SWITCH HAVING FIRST, SECOND AND THIRD POSITIONS REPRESENTING DIFFERENT WELDING PARAMETERS AND HAVING SAID POWER SUPPLY CONNECTED TO SAID FIRST AND SECOND POSITIONS AND SAID CONSTANT SIGNAL SOURCE CONNECTED TO SAID THIRD POSITION;
A HALL EFFECT DEVICE ELECTRICALLY CONNECTED TO SAID SWITCH AND ADAPTED TO HAVE SAID POWER SUPPLY COUPLED THERETO WHEN SAID SWITCH IS IN EITHER SAID FIRST OR SECOND POSITION AND TO HAVE SAID CONSTANT POWER SUPPLY COUPLED THERETO WHEN SAID SWITCH IS IN SAID THIRD POSITION, SAID HALL DEVICE BEING JUXTAPOSED TO ONE OF SAID CONDUCTORS TO BE RESPONSIVE TO A MAGNETIC FIELD WHEN SAID POWER SUPPLY IS ACTUATED;
AN INTEGRATING CIRCUIT MEANS ELECTRICALLY CONNECTED TO SAID SWITCH AND ADAPTED TO BE ENERGIZED ONLY WHEN SAID SWITCH IS IN SAID FIRST POSITION FOR TOTALIZING WITH RESPECT TO TIME THE POWER DEVELOPED IN THE WELD BEING MONITORED;
A PEAKING CIRCUIT MEANS AND AN INVERTER AMPLIFIER CIRCUIT MEANS ELECTRICALLY CONNECTED TO SAID SWITCH AND ADAPTED TO BE ENERGIZED ONLY WHEN SAID SWITCH IS IN EITHER ITS SECOND OR THIRD POSITION FOR DEVELOPING A SIGNAL REPRESENTATIVE OF THE INSTANTANEOUS MAGNITUDE OF THE SELECTED PARAMETER;
AND A METER CIRCUIT COUPLED TO SAID SWITCH TO INDICATE THE MAGNITUDE OF THE WELDING PARAMETERS REPRESENTED BY THE SELECTED POSITION OF SAID SWITCH.
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1 Claim
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1. IN COMBINATION WITH AN ELECTRIC RESISTANCE WELDING SYSTEM, INCLUDING A POWER SUPPLY, A LOAD CIRCUIT INCLUDING A PAIR OF WELDING ELECTRODES, A PAIR OF CONDUCTORS ELECTRICALLY CONNECTING SAID ELECTRODES TO SAID POWER SUPPLY, AND A CONSTANT SIGNAL SOURCE, A WELDING PROCESS INDICATING DEVICE COMPRISING:
- A MULTICONTACT SWITCH HAVING FIRST, SECOND AND THIRD POSITIONS REPRESENTING DIFFERENT WELDING PARAMETERS AND HAVING SAID POWER SUPPLY CONNECTED TO SAID FIRST AND SECOND POSITIONS AND SAID CONSTANT SIGNAL SOURCE CONNECTED TO SAID THIRD POSITION;
A HALL EFFECT DEVICE ELECTRICALLY CONNECTED TO SAID SWITCH AND ADAPTED TO HAVE SAID POWER SUPPLY COUPLED THERETO WHEN SAID SWITCH IS IN EITHER SAID FIRST OR SECOND POSITION AND TO HAVE SAID CONSTANT POWER SUPPLY COUPLED THERETO WHEN SAID SWITCH IS IN SAID THIRD POSITION, SAID HALL DEVICE BEING JUXTAPOSED TO ONE OF SAID CONDUCTORS TO BE RESPONSIVE TO A MAGNETIC FIELD WHEN SAID POWER SUPPLY IS ACTUATED;
AN INTEGRATING CIRCUIT MEANS ELECTRICALLY CONNECTED TO SAID SWITCH AND ADAPTED TO BE ENERGIZED ONLY WHEN SAID SWITCH IS IN SAID FIRST POSITION FOR TOTALIZING WITH RESPECT TO TIME THE POWER DEVELOPED IN THE WELD BEING MONITORED;
A PEAKING CIRCUIT MEANS AND AN INVERTER AMPLIFIER CIRCUIT MEANS ELECTRICALLY CONNECTED TO SAID SWITCH AND ADAPTED TO BE ENERGIZED ONLY WHEN SAID SWITCH IS IN EITHER ITS SECOND OR THIRD POSITION FOR DEVELOPING A SIGNAL REPRESENTATIVE OF THE INSTANTANEOUS MAGNITUDE OF THE SELECTED PARAMETER;
AND A METER CIRCUIT COUPLED TO SAID SWITCH TO INDICATE THE MAGNITUDE OF THE WELDING PARAMETERS REPRESENTED BY THE SELECTED POSITION OF SAID SWITCH.
- A MULTICONTACT SWITCH HAVING FIRST, SECOND AND THIRD POSITIONS REPRESENTING DIFFERENT WELDING PARAMETERS AND HAVING SAID POWER SUPPLY CONNECTED TO SAID FIRST AND SECOND POSITIONS AND SAID CONSTANT SIGNAL SOURCE CONNECTED TO SAID THIRD POSITION;
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Current AssigneeWilliam H. Hill
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Original AssigneeWilliam H. Hill
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InventorsHill, William H.
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Application NumberUS04/226,803Time in Patent Office1,019 DaysField of SearchUS Class Current219/109CPC Class CodesB23K 11/25 Monitoring devices
