Patent US3204151A successfully refreshed from Google Patents.
US3204151A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fast-acting relay controlled circuit
Assignee: AT&T Inc
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Filing: 1962-12-17
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Granted: 1965-08-31
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Expires: 1982-12-17
Abstract
No abstract record available.
Inventors
- 👤 George E Kersey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 03:51
CPC Classifications
H; H03; H03K; H03K3/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
129 words
APPARATUS COMPRISING A RELAY HAVING A PAIR OF NORMALLY OPEN CONTACTS, AND A CONTROL WINDING CHARACTERISTIZED BY ELECTRICAL INERTIA, A SOURCE CONNECTABLE TO A LOAD THROUGH SAID CONTACTS, MEANS FOR ENERGIZING SAID CONTROL WINDING TO CLOSE SAID CONTACTS AND ESTABLISH A CONDUCTION PATH THERETHROUGH AFTER A DELAY INTERVAL GOVERNED BY THE ELECTRICAL INERTIA OF SAID CONTROL WINDING, A UNDIRECTIONALLY CONDUCTIVE DIODE CONNECTED IN SHUNT WITH SAID CONTACTS AND POLED IN ITS DIRECTION OF NONCONDUCTIVE WITH RESPECT TO SAID SOURCE, AND A PATH, WHOSE IMPEDANCE IS GREATER THAN THAT OF SAID LOAD, INTERCONNECTING SAID DIODE WITH SAID WINDING, WHEREBY ENERGY APPLIED TO SAID WINDING BY SAID ENENERGIZING MEANS IS ABLE TO ESTABLISH A CONDUCTION PATH FROM SAID SOURCE TO SAID LOAD THROUGH SAID DIODE BEFORE THE CLOSURE OF SAID CONTACTS.
Claim 2
Dependent Claim
129 words
APPARATUS COMPRISING A RELAY HAVING A PAIR OF NORMALLY OPEN CONTACTS, AND A CONTROL WINDING CHARACTERISTIZED BY ELECTRICAL INERTIA, A SOURCE CONNECTABLE TO A LOAD THROUGH SAID CONTACTS, MEANS FOR ENERGIZING SAID CONTROL WINDING TO CLOSE SAID CONTACTS AND ESTABLISH A CONDUCTION PATH THERETHROUGH AFTER A DELAY INTERVAL GOVERNED BY THE ELECTRICAL INERTIA OF SAID CONTROL WINDING, A UNDIRECTIONALLY CONDUCTIVE DIODE CONNECTED IN SHUNT WITH SAID CONTACTS AND POLED IN ITS DIRECTION OF NONCONDUCTIVE WITH RESPECT TO SAID SOURCE, AND A PATH, WHOSE IMPEDANCE IS GREATER THAN THAT OF SAID LOAD, INTERCONNECTING SAID DIODE WITH SAID WINDING, WHEREBY ENERGY APPLIED TO SAID WINDING BY SAID ENENERGIZING MEANS IS ABLE TO ESTABLISH A CONDUCTION PATH FROM SAID SOURCE TO SAID LOAD THROUGH SAID DIODE BEFORE THE CLOSURE OF SAID CONTACTS.
References Cited (Backward Citations)
US2062274A
Cited
US2932774A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-08-30 | 1969-03-01 | 1969-08-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-30 | 1973-03-01 | 1973-08-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-30 | 1977-03-01 | 1977-08-31 | $7700.00 | Window Closed / Lapsed |