US3118090A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reed relay transfer circuit
Assignee: AT&T Inc
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Filing: 1961-08-09
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Granted: 1964-01-14
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Expires: 1981-08-09
Abstract
No abstract record available.
Inventors
- 👤 Arthur C Keller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:22
CPC Classifications
H; H01; H01H; H01H47/00; H01H51/00; H01H51/27
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
207 words
A RELAY TRANSFER CIRCUIT COMPRISING A FIRST REED SWITCH HAVING AT LEAST ONE REMANENTLY MAGNETIC MEMBER ASSOCIATED THEREWITH AND A SECOND REED SWITCH HAVING AT LEAST ONE REMANENTLY MAGNETIC MEMBER ASSOCIATED THEREWITH, SAID REED SWITCHES BEING SUBSTANTIALLY IDENTICAL AND EACH CONSISTING OF A SINGLE PAIR OF MAKE CONTACTS AND HAVING SHORTER RELEASE THAN OPERATE TIMES, A FIRST AND A SECOND PAIR OF WINDINGS MAGNETICALLY COUPLED TO SAID FIRST SWITCH FOR DETERMINING THE REMANENT STATE OF SAID FIRST SWITCH REMANENT MEMBER, A THIRD AND A FOURTH PAIR OF WINDINGS MAGNETICALLY COUPLED TO SAID SECOND SWITCH FOR DETERMINING THE REMANENT STATE OF SAID SECOND SWITCH REMANENT MEMBER, ACCESS CONTROL MEANS COUPLED TO SAID FIRST REED SWITCH COMPRISING DUAL INFORMATION PULSE SOURCE MEANS, MEANS CONNECTING SAID FIRST AND THIRD PAIRS OF WINDINGS IN SERIES TO CAUSE SAID FIRST SWITCH TO RELEASE AND SAID SECOND SWITCH TO OPERATE IN RESPONSE TO A FIRST OF SAID DUAL INFORMATION PULSE SOURCE MEANS, MEANS CONNECTING SAID SECOND AND FOURTH PAIRS OF WINDINGS IN SERIES TO CAUSE SAID FIRST SWITCH TO OPERATE AND SAID SECOND SWITCH TO RELEASE IN RESPONSE TO THE SUBSEQUENT OPERATION OF A SECOND OF SAID DUAL INFORMATION PULSE SOURCE MEANS, AND MEANS CONNECTING ONE CONTACT OF EACH OF SAID SWITCHES TOGETHER.
Claim 2
Dependent Claim
207 words
A RELAY TRANSFER CIRCUIT COMPRISING A FIRST REED SWITCH HAVING AT LEAST ONE REMANENTLY MAGNETIC MEMBER ASSOCIATED THEREWITH AND A SECOND REED SWITCH HAVING AT LEAST ONE REMANENTLY MAGNETIC MEMBER ASSOCIATED THEREWITH, SAID REED SWITCHES BEING SUBSTANTIALLY IDENTICAL AND EACH CONSISTING OF A SINGLE PAIR OF MAKE CONTACTS AND HAVING SHORTER RELEASE THAN OPERATE TIMES, A FIRST AND A SECOND PAIR OF WINDINGS MAGNETICALLY COUPLED TO SAID FIRST SWITCH FOR DETERMINING THE REMANENT STATE OF SAID FIRST SWITCH REMANENT MEMBER, A THIRD AND A FOURTH PAIR OF WINDINGS MAGNETICALLY COUPLED TO SAID SECOND SWITCH FOR DETERMINING THE REMANENT STATE OF SAID SECOND SWITCH REMANENT MEMBER, ACCESS CONTROL MEANS COUPLED TO SAID FIRST REED SWITCH COMPRISING DUAL INFORMATION PULSE SOURCE MEANS, MEANS CONNECTING SAID FIRST AND THIRD PAIRS OF WINDINGS IN SERIES TO CAUSE SAID FIRST SWITCH TO RELEASE AND SAID SECOND SWITCH TO OPERATE IN RESPONSE TO A FIRST OF SAID DUAL INFORMATION PULSE SOURCE MEANS, MEANS CONNECTING SAID SECOND AND FOURTH PAIRS OF WINDINGS IN SERIES TO CAUSE SAID FIRST SWITCH TO OPERATE AND SAID SECOND SWITCH TO RELEASE IN RESPONSE TO THE SUBSEQUENT OPERATION OF A SECOND OF SAID DUAL INFORMATION PULSE SOURCE MEANS, AND MEANS CONNECTING ONE CONTACT OF EACH OF SAID SWITCHES TOGETHER.
References Cited (Backward Citations)
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Cited
US2995637A
Cited
US3002067A
Cited
US3002066A
Cited
US3008020A
Cited
US3037085A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-01-13 | 1967-07-15 | 1968-01-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-01-13 | 1971-07-15 | 1972-01-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-01-13 | 1975-07-15 | 1976-01-14 | $7700.00 | Window Closed / Lapsed |