US3212079A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Signalling arrangement
Assignee: Eberle & Kohler KG
•
Filing: 1962-03-16
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Granted: 1965-10-12
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Expires: 1982-03-16
Abstract
No abstract record available.
Inventors
- 👤 Huttner Hans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 01:36
CPC Classifications
H; H02; H02B; H02B1/00; H02B1/24; G; G08; G08B; G08B25/00; G08B25/14; G08B7/00; G08B7/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
116 words
A SIGNALLING UNIT FOR A SIGNALLING SYSTEM COMPRISING A FLIP-FLOP CIRCUIT HAVING A FIRST AND A SECOND OUTPUT STATEF A MULTIVIBRATOR CIRCUIT, A VISUAL SIGNAL CONNECTED TO THE OUTPUT OF SAID MULTIVIBRATOR CIRCUIT; CONDITION RESPONSIVE MEANS OPERATABLE TO SHIFT SAID FLIP-FLOP CIRCUIT FROM SAID FIRST TO SAID SECOND STATE AND, AT THE SAME TIME, OPERATE SAID MULTIBIBRATOR CIRCUIT INTO AN OSCILLATING STATE; ACKNOWLEDGEMENT MEANS OPERABLE TO SHIFT AND FLIP-FLOP CIRCUIT FROM SAID SECOND TO SAID FIRST STATE; AND GALVANIC MEANS INCLUDING A SWITCHING TRANSISTOR CONNECTING SAID FLIP-FLOP CIRCUIT TO SAID MULTIVIBRATOR CIRCUIT, SAID TRANSISTOR CONNECTING SAID FLIP-FLOP AND MULTIVIBRAOTR CIRCUITS SO THAT SAID FLIP-FLOP CIRCUIT CAN SWITCH SAID MULTIVIBRATOR CIRCUIT BETWEEN ITS OSCILLATING AND STEADY OPERATIONS.
Claim 2
Dependent Claim
116 words
A SIGNALLING UNIT FOR A SIGNALLING SYSTEM COMPRISING A FLIP-FLOP CIRCUIT HAVING A FIRST AND A SECOND OUTPUT STATEF A MULTIVIBRATOR CIRCUIT, A VISUAL SIGNAL CONNECTED TO THE OUTPUT OF SAID MULTIVIBRATOR CIRCUIT; CONDITION RESPONSIVE MEANS OPERATABLE TO SHIFT SAID FLIP-FLOP CIRCUIT FROM SAID FIRST TO SAID SECOND STATE AND, AT THE SAME TIME, OPERATE SAID MULTIBIBRATOR CIRCUIT INTO AN OSCILLATING STATE; ACKNOWLEDGEMENT MEANS OPERABLE TO SHIFT AND FLIP-FLOP CIRCUIT FROM SAID SECOND TO SAID FIRST STATE; AND GALVANIC MEANS INCLUDING A SWITCHING TRANSISTOR CONNECTING SAID FLIP-FLOP CIRCUIT TO SAID MULTIVIBRATOR CIRCUIT, SAID TRANSISTOR CONNECTING SAID FLIP-FLOP AND MULTIVIBRAOTR CIRCUITS SO THAT SAID FLIP-FLOP CIRCUIT CAN SWITCH SAID MULTIVIBRATOR CIRCUIT BETWEEN ITS OSCILLATING AND STEADY OPERATIONS.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-10-11 | 1969-04-12 | 1969-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-11 | 1973-04-12 | 1973-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-11 | 1977-04-12 | 1977-10-12 | $7700.00 | Window Closed / Lapsed |