US3110772A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical switching array
Assignee: AT&T Inc
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Filing: 1962-06-28
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Granted: 1963-11-12
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Expires: 1982-06-28
Abstract
No abstract record available.
Inventors
- 👤 Jr Walter S Hayward
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:31
CPC Classifications
H; H01; H01H; H01H67/00; H01H67/22; H01H67/24; H04; H04Q; H04Q3/00; H04Q3/0008; H04Q3/0012
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
260 words
AN ELECTRICAL SWITCHING MATRIX COMPRISING A COORDINATE ARRAY OF ELECTRICAL SWITCHES EACH COMPRISING A PAIR OF FLUX RESPONSIVE ELECTRICAL CONTACTING REEDS, A PAIR OF MAGNETIC MEMBERS EACH HAVING SUBSTANTIALLY RECTANGULAR HYSTERESIS CHARACTERISTICS, A FIRST AND A SECOND WINDING ON EACH OF SAID MAGNETIC MEMBERS, SAID FIRST WINDING HAVING A GREATER NUMBER OF TURNS AND BEING COUPLED IN THE OPPOSITE SENSE THAN SAID SECOND WINDING, AND MAGNETIC MEANS FOR COMPLETING FLUX PATHS BETWEEN SAID MAGNETIC MEMBERS AND SAID CONTACTING REEDS; A FIRST PLURALITY OF CIRCUIT MEANS FOR SERIALLY CONNECTING THE FIRST WINDING OF SAID MAGNETIC MEMBER AND THE SECOND WINDING OF THE OTHER MAGNETIC MEMBER OF EACH OF THE SWITCHES IN FIRST COORDINATES OF SAID ARRAY, A SECOND PLURALITY OF CIRCUIT MEANS FOR SERIALLY CONNECTING THE SECOND WINDING OF SAID ONE MAGNETIC MEMBER AND THE FIRST WINDING OF SAID OTHER MAGNETIC MEMBER OF EACH OF THE SWITCHES IN SECOND COORDINATES OF SAID ARRAY, AND MEANS FOR APPLYING THE SAME CURRENT PULSE TO THE FIRST AND SECOND WINDINGS OF BOTH SAID MAGNETIC MEMBERS OF A SELECTED SWITCH OF SAID ARRAY COMPRISING A PLURALITY OF SELECTING CIRCUITS INCLUDING RESPECTIVELY SAID FIRST AND SAID SECOND PLURALITY OF CIRCUIT MEANS, MEANS FOR SELECTIVELY APPLYING A FIRST POTENTIAL TO ONE END OF ONE OF SAID FIRST PLURALITY OF CIRCUIT MEANS, MEANS FOR SELECTIVELY APPLYING A SECOND POTENTIAL TO ONE END OF ONE OF SAID SECOND PLURALITY OF CIRCUIT MEANS SIMULTANEOUSLY WITH SAID FIRST POTENTIAL, AND A COMMON CONDUCTING BUS CONNECTED TO THE OTHER END OF EACH OF SAID FIRST AND SAID SECOND PLURALITY OF CIRCUIT MEANS.
Claim 2
Dependent Claim
260 words
AN ELECTRICAL SWITCHING MATRIX COMPRISING A COORDINATE ARRAY OF ELECTRICAL SWITCHES EACH COMPRISING A PAIR OF FLUX RESPONSIVE ELECTRICAL CONTACTING REEDS, A PAIR OF MAGNETIC MEMBERS EACH HAVING SUBSTANTIALLY RECTANGULAR HYSTERESIS CHARACTERISTICS, A FIRST AND A SECOND WINDING ON EACH OF SAID MAGNETIC MEMBERS, SAID FIRST WINDING HAVING A GREATER NUMBER OF TURNS AND BEING COUPLED IN THE OPPOSITE SENSE THAN SAID SECOND WINDING, AND MAGNETIC MEANS FOR COMPLETING FLUX PATHS BETWEEN SAID MAGNETIC MEMBERS AND SAID CONTACTING REEDS; A FIRST PLURALITY OF CIRCUIT MEANS FOR SERIALLY CONNECTING THE FIRST WINDING OF SAID MAGNETIC MEMBER AND THE SECOND WINDING OF THE OTHER MAGNETIC MEMBER OF EACH OF THE SWITCHES IN FIRST COORDINATES OF SAID ARRAY, A SECOND PLURALITY OF CIRCUIT MEANS FOR SERIALLY CONNECTING THE SECOND WINDING OF SAID ONE MAGNETIC MEMBER AND THE FIRST WINDING OF SAID OTHER MAGNETIC MEMBER OF EACH OF THE SWITCHES IN SECOND COORDINATES OF SAID ARRAY, AND MEANS FOR APPLYING THE SAME CURRENT PULSE TO THE FIRST AND SECOND WINDINGS OF BOTH SAID MAGNETIC MEMBERS OF A SELECTED SWITCH OF SAID ARRAY COMPRISING A PLURALITY OF SELECTING CIRCUITS INCLUDING RESPECTIVELY SAID FIRST AND SAID SECOND PLURALITY OF CIRCUIT MEANS, MEANS FOR SELECTIVELY APPLYING A FIRST POTENTIAL TO ONE END OF ONE OF SAID FIRST PLURALITY OF CIRCUIT MEANS, MEANS FOR SELECTIVELY APPLYING A SECOND POTENTIAL TO ONE END OF ONE OF SAID SECOND PLURALITY OF CIRCUIT MEANS SIMULTANEOUSLY WITH SAID FIRST POTENTIAL, AND A COMMON CONDUCTING BUS CONNECTED TO THE OTHER END OF EACH OF SAID FIRST AND SAID SECOND PLURALITY OF CIRCUIT MEANS.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-11-11 | 1967-05-13 | 1967-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-11-11 | 1971-05-13 | 1971-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-11-11 | 1975-05-13 | 1975-11-12 | $7700.00 | Window Closed / Lapsed |