Keyless electric lock
First Claim
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1. AN ELECTRICAL COMBINATION CONTROL FOR A LOCK HAVING AN OPERATING MEMBER CONNECTABLE WITH AN ENERGIZING CIRCUIT, COMPRISING:
- MEANS PROVIDING A SOURCE OF ELECTRICAL ENERGY TO WHICH SAID ENERGIZING CIRCUIT IS CONNECTED;
A PLURALITY OF BUTTONS MOUNTED ON A KEYBOARD;
A PLURALITY OF NORMALLY CLOSED SWITCHES CONNECTED IN SAID ENERGIZING CIRCUIT AND OPERABLY ASSOCIATED WITH CERTAIN OF SAID BUTTONS, TO BE OPENED UPON ACTUATION OF THE ASSOCIATED BUTTONS;
A PLURALITY OF SWITCH MEANS OPERABLY ASSOCIATED WITH OTHERS OF SUCH BUTTONS FOR SUCCESSIVE OPERATION TO CONNECT SAID OPERATING MEMBER WITH SAID SOURCE, AND HAVING THE NORMALLY OPEN AND NORMALLY CLOSED CONTACT PORTIONS, THE NORMALLY CLOSED CONTACT PORTIONS BEING CONNECTED IN SERIES IN SAID ENERGIZING CIRCUIT;
A PLURALITY OF RELAYS EACH CONNECTED THROUGH THE NORMALLY OPEN CONTACT PORTION OF AT LEAST A PORTION OF SAID SWITCH MEANS, ACROSS SAID SOURCE, AND EACH HAVING A HOLDING CONTACT CONNECTED IN PARALLEL WITH SAID NORMALLY OPEN CONTACT PORTION OF THE ASSOCIATED SWITCH, THE NORMALLY OPEN CONTACT PORTIONS OF SUCCESSIVE SWITCH MEANS BEING CONNECTED IN SAID ENERGIZING CIRCUIT THROUGH THE NORMALLY CLOSED CONTACT PORTIONS OF THE PRECEDING SUCCESSIVELY OPERATED SWITCH MEANS;
AND A NORMALLY OPEN CONTACT ASSOCIATED WITH THE LAST OF SAID SUCCESSIVE SWITCH MEANS, FOR CONNECTING SAID OPERATING MEMBER WITH SAID ENERGIZING CIRCUIT.
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1 Claim
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1. AN ELECTRICAL COMBINATION CONTROL FOR A LOCK HAVING AN OPERATING MEMBER CONNECTABLE WITH AN ENERGIZING CIRCUIT, COMPRISING:
- MEANS PROVIDING A SOURCE OF ELECTRICAL ENERGY TO WHICH SAID ENERGIZING CIRCUIT IS CONNECTED;
A PLURALITY OF BUTTONS MOUNTED ON A KEYBOARD;
A PLURALITY OF NORMALLY CLOSED SWITCHES CONNECTED IN SAID ENERGIZING CIRCUIT AND OPERABLY ASSOCIATED WITH CERTAIN OF SAID BUTTONS, TO BE OPENED UPON ACTUATION OF THE ASSOCIATED BUTTONS;
A PLURALITY OF SWITCH MEANS OPERABLY ASSOCIATED WITH OTHERS OF SUCH BUTTONS FOR SUCCESSIVE OPERATION TO CONNECT SAID OPERATING MEMBER WITH SAID SOURCE, AND HAVING THE NORMALLY OPEN AND NORMALLY CLOSED CONTACT PORTIONS, THE NORMALLY CLOSED CONTACT PORTIONS BEING CONNECTED IN SERIES IN SAID ENERGIZING CIRCUIT;
A PLURALITY OF RELAYS EACH CONNECTED THROUGH THE NORMALLY OPEN CONTACT PORTION OF AT LEAST A PORTION OF SAID SWITCH MEANS, ACROSS SAID SOURCE, AND EACH HAVING A HOLDING CONTACT CONNECTED IN PARALLEL WITH SAID NORMALLY OPEN CONTACT PORTION OF THE ASSOCIATED SWITCH, THE NORMALLY OPEN CONTACT PORTIONS OF SUCCESSIVE SWITCH MEANS BEING CONNECTED IN SAID ENERGIZING CIRCUIT THROUGH THE NORMALLY CLOSED CONTACT PORTIONS OF THE PRECEDING SUCCESSIVELY OPERATED SWITCH MEANS;
AND A NORMALLY OPEN CONTACT ASSOCIATED WITH THE LAST OF SAID SUCCESSIVE SWITCH MEANS, FOR CONNECTING SAID OPERATING MEMBER WITH SAID ENERGIZING CIRCUIT.
- MEANS PROVIDING A SOURCE OF ELECTRICAL ENERGY TO WHICH SAID ENERGIZING CIRCUIT IS CONNECTED;
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Current AssigneeJohn C. Hevenor
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Original AssigneeJohn C. Hevenor
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InventorsHevenor, John C.
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Application NumberUS04/087,162Time in Patent Office1,604 DaysField of SearchUS Class Current361/171CPC Class CodesG07C 9/0069 actuated in a predetermined...Y10T 70/7068 Actuated after correct comb...
