US3277457A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic signaling system
Assignee: Individual
•
Filing: 1963-10-07
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Granted: 1966-10-04
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Expires: 1983-10-07
Abstract
No abstract record available.
Inventors
- 👤 Herman Leon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 20:24
CPC Classifications
G; G08; G08B; G08B17/00; G08B17/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
147 words
IN AN AUTOMATIC SIGNALING SYSTEM FOR DETECTION OF A HIGH TEMPERATURE CONDITION IN ANY OF A PLURALITY OF SEPARATE PORTIONS OF A STRUCTURE, THE IMPROVEMENT COMPRISING: A POWER SUPPLY, A PLURALITY OF HEAT SENSITIVE FUSE WIRES CONNECTED IN SERIES TO SAID POWER SUPPLY, EACH OF SAID FUSE WIRES BEING LOCATED IN SEPARATE PORTIONS OF SAID STRUCTURE AND SENSITIVE TO A TEMPERATURE A SELECTED AMOUNT HIGHER THAN THE NORMAL AMBIENT TEMPERATURE OF THE PORTION OF THE STRUCTURE IN WHICH IT IS LOCATED TO RUPTURE WHEN THE HIGHER TEMPERATURE IS REACHED; A CONTROL CIRCUIT FOR SAID SYSTEM, SAID CONTROL CIRCUIT COMPRISING A RELAY WINDING CONNECTED IN SERIES WITH SAID FUSE WIRES, A PAIR OF SERIES ARRANGED RESISTORS CONNECTED IN PARALLEL WITH THE FUSE WIRES, NORMALLY CLOSED CONTACT MEANS OPERATIVELY ASSOCIATED WITH SAID RELAY WINDING AND AN INDICATOR MEANS, THE CONTACT MEANS AND SAID INDICATOR MEANS BEING CONNECTED IN SERIES
Claim 2
Dependent Claim
147 words
IN AN AUTOMATIC SIGNALING SYSTEM FOR DETECTION OF A HIGH TEMPERATURE CONDITION IN ANY OF A PLURALITY OF SEPARATE PORTIONS OF A STRUCTURE, THE IMPROVEMENT COMPRISING: A POWER SUPPLY, A PLURALITY OF HEAT SENSITIVE FUSE WIRES CONNECTED IN SERIES TO SAID POWER SUPPLY, EACH OF SAID FUSE WIRES BEING LOCATED IN SEPARATE PORTIONS OF SAID STRUCTURE AND SENSITIVE TO A TEMPERATURE A SELECTED AMOUNT HIGHER THAN THE NORMAL AMBIENT TEMPERATURE OF THE PORTION OF THE STRUCTURE IN WHICH IT IS LOCATED TO RUPTURE WHEN THE HIGHER TEMPERATURE IS REACHED; A CONTROL CIRCUIT FOR SAID SYSTEM, SAID CONTROL CIRCUIT COMPRISING A RELAY WINDING CONNECTED IN SERIES WITH SAID FUSE WIRES, A PAIR OF SERIES ARRANGED RESISTORS CONNECTED IN PARALLEL WITH THE FUSE WIRES, NORMALLY CLOSED CONTACT MEANS OPERATIVELY ASSOCIATED WITH SAID RELAY WINDING AND AN INDICATOR MEANS, THE CONTACT MEANS AND SAID INDICATOR MEANS BEING CONNECTED IN SERIES
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) | 1969-10-03 | 1970-04-04 | 1970-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-03 | 1974-04-04 | 1974-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-03 | 1978-04-04 | 1978-10-04 | $7700.00 | Window Closed / Lapsed |