US3129419A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electromagnetic code conversion arrangements
Assignee: ASS ELECT IND WOOLWICH Ltd
•
Filing: 1958-12-03
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Granted: 1964-04-14
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Expires: 1978-12-03
Abstract
No abstract record available.
Inventors
- 👤 Clark John Brownlie
- 👤 Hicks Percy William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:02
CPC Classifications
H; H04; H04Q; H04Q3/00; H04Q3/42
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
158 words
A CODE CONVERSION CIRCUIT COMPRISING N ELECTROMAGNETIC DEVICES, N BEING GREATER THAN TWO, AT LEAST N-1 ACTIVATING WINDINGS ON EACH OF SAID DEVICES, AND CONNECTIONS BY WHICH EACH OF SAID N-1 WINDINGS OF EACH DEVICE IS PAIRED FOR CONTEMPORANEOUS ENERGIZATION WITH ONE OF THE ACTIVATING WINDINGS OF ONE OF THE OTHER DEVICES, SAID CONNECTIONS BEING ORGANIZED IN SUCH MANNER THAT THE WINDINGS WITH WHICH THE N-1 WINDINGS OF EACH DEVICE ARE RESPECTIVELY PAIRED BELONG TO SEPARATE ONES OF THE OTHER DEVICES AND THAT AS REGARDS ANY THREE OF SAID DEVICES TAKEN AS A GROUP, AND CONSIDERING IN RESPECT OF EACH DEVICE IN SUCH GROUP THE TWO ACTIVATING WINDINGS THEREOF WHICH ARE PAIRED WITH ACTIVATING WINDINGS OF THE OTHER TWO DEVICES OF THE GROUP, SAID TWO WINDINGS ARE DIFFERENTIALLY CONNECTED WITH RESPECT TO EACH OTHER IN AN ODD NUMBER OF THE THREE DEVICES OF THE GROUP AND ARE NON-DIFFERENTIALLY CONNECTED IN EACH OF THE REMAINING DEVICES OF THE GROUP.
Claim 2
Dependent Claim
158 words
A CODE CONVERSION CIRCUIT COMPRISING N ELECTROMAGNETIC DEVICES, N BEING GREATER THAN TWO, AT LEAST N-1 ACTIVATING WINDINGS ON EACH OF SAID DEVICES, AND CONNECTIONS BY WHICH EACH OF SAID N-1 WINDINGS OF EACH DEVICE IS PAIRED FOR CONTEMPORANEOUS ENERGIZATION WITH ONE OF THE ACTIVATING WINDINGS OF ONE OF THE OTHER DEVICES, SAID CONNECTIONS BEING ORGANIZED IN SUCH MANNER THAT THE WINDINGS WITH WHICH THE N-1 WINDINGS OF EACH DEVICE ARE RESPECTIVELY PAIRED BELONG TO SEPARATE ONES OF THE OTHER DEVICES AND THAT AS REGARDS ANY THREE OF SAID DEVICES TAKEN AS A GROUP, AND CONSIDERING IN RESPECT OF EACH DEVICE IN SUCH GROUP THE TWO ACTIVATING WINDINGS THEREOF WHICH ARE PAIRED WITH ACTIVATING WINDINGS OF THE OTHER TWO DEVICES OF THE GROUP, SAID TWO WINDINGS ARE DIFFERENTIALLY CONNECTED WITH RESPECT TO EACH OTHER IN AN ODD NUMBER OF THE THREE DEVICES OF THE GROUP AND ARE NON-DIFFERENTIALLY CONNECTED IN EACH OF THE REMAINING DEVICES OF THE GROUP.
References Cited (Backward Citations)
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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) | 1967-04-14 | 1967-10-14 | 1968-04-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-04-14 | 1971-10-14 | 1972-04-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-04-14 | 1975-10-14 | 1976-04-14 | $7700.00 | Window Closed / Lapsed |