US3231693A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Card-operated lock controller
Assignee: Individual
•
Filing: 1963-01-04
•
Granted: 1966-01-25
•
Expires: 1983-01-04
Abstract
No abstract record available.
Inventors
- 👤 Robert B Mclaughlin
- 👤 Prahm Louis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 03:00
CPC Classifications
E; E05; E05B; E05B49/00; E05B49/002; E05B49/004; H; H01; H01H; H01H27/00; H01H27/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
171 words
IN A LOCK HAVING AN UNLOCKING MEANS ADAPTED, IN RESPONSE TO AN ELECTRIC SIGNAL, TO UNLOCK, THE CONTROLLER FOR UNLCOKING SAID LOCK WHEN A CARD IN INSERTED THEREIN CAUSING SAID SIGNAL TO BE PASSED TO SAID UNLOCKING MEANS, SAID CONTROLLER COMPRISING: (A) A PLURALITY OF SERIES-CONNECTED, TWO ELEMENT MECHANICAL SWITCHES, ONE ELEMENT OF EACH OF WHICH IS MOVABLE TO A PREDETERMINED ONE OF ALTERNATE POSITIONS, AND MEANS FOR SETTING SAID ONE ELEMENT INTO SAID PREDETERMINED ONE POSITION; AND A SECOND ELEMENT OF WHICH IS MOVABLE FROM ONE POSITION TO AN ALTERNATE POSITION IN RESPONSE TO THE RECEIPT OF A CARD INSERTED INTO SAID CONTROLLER, EACH SUCH SWITCH BEING CLOSED ONLY WHEN SAID SECOND OF ITS ELEMENTS IS IN A POSITION WHICH CORRESPONDS TO THE POSITION OF SAID ONE ELEMENT; AND (B) CARD MEANS CODED TO NONCONDUCTIVELY EDGEWISE ENAGE SAID SECOND ELEMENT OF EACH OF SAID SWITCHES INTO SAID CORRESPONDING POSITION, THEREBY, UPON RECEIPT OF SUCH CARD, CLOSING ALL OF SAID SWITCHES AND FROMING A SERIES CIRCUIT THROUGH ALL OF SAID SWITCHES.
Claim 2
Dependent Claim
171 words
IN A LOCK HAVING AN UNLOCKING MEANS ADAPTED, IN RESPONSE TO AN ELECTRIC SIGNAL, TO UNLOCK, THE CONTROLLER FOR UNLCOKING SAID LOCK WHEN A CARD IN INSERTED THEREIN CAUSING SAID SIGNAL TO BE PASSED TO SAID UNLOCKING MEANS, SAID CONTROLLER COMPRISING: (A) A PLURALITY OF SERIES-CONNECTED, TWO ELEMENT MECHANICAL SWITCHES, ONE ELEMENT OF EACH OF WHICH IS MOVABLE TO A PREDETERMINED ONE OF ALTERNATE POSITIONS, AND MEANS FOR SETTING SAID ONE ELEMENT INTO SAID PREDETERMINED ONE POSITION; AND A SECOND ELEMENT OF WHICH IS MOVABLE FROM ONE POSITION TO AN ALTERNATE POSITION IN RESPONSE TO THE RECEIPT OF A CARD INSERTED INTO SAID CONTROLLER, EACH SUCH SWITCH BEING CLOSED ONLY WHEN SAID SECOND OF ITS ELEMENTS IS IN A POSITION WHICH CORRESPONDS TO THE POSITION OF SAID ONE ELEMENT; AND (B) CARD MEANS CODED TO NONCONDUCTIVELY EDGEWISE ENAGE SAID SECOND ELEMENT OF EACH OF SAID SWITCHES INTO SAID CORRESPONDING POSITION, THEREBY, UPON RECEIPT OF SUCH CARD, CLOSING ALL OF SAID SWITCHES AND FROMING A SERIES CIRCUIT THROUGH ALL OF SAID SWITCHES.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-01-24 | 1969-07-26 | 1970-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-24 | 1973-07-26 | 1974-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-24 | 1977-07-26 | 1978-01-25 | $7700.00 | Window Closed / Lapsed |