US3125692A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stepping switch circuit
Assignee: —
•
Filing: —
•
Granted: 1964-03-17
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Expires: 1981-03-17
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:10
CPC Classifications
H; H03; H03K; H03K3/00; H03K3/02; H03K3/313; H03K3/315
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
152 words
IN COMBINATION IN A STEPPING SWITCH CIRCUIT, A PLURALITY OF STAGES EACH INCLUDING A SWITCHING DEVICE AND A BISTABLE ELEMENT FOR CONTROLLING THE CONDITION OF SAID DEVICE, EACH OF SAID ELEMENTS BEING CHARACTERIZED BY SET AND RESET CONDITIONS, EACH STAGE ALSO INCLUDING A DIFFERENTIATING TRANSFORMER HAVING A PRIMARY WINDING, A ONEPHASE SOURCE FOR SUPPLYING DRIVING SIGNALS EACH CHARACTERIZED BY A TRAILING EDGE, SAID SOURCE BEING CONNECTED TO THE SWITCHING DEVICE OF EACH STAGE VIA THE PRIMARY WINDING OF THE DIFFERENTIATING TRANSFORMER THEREOF, A START PULSE SOURCE FOR SETTING THE BISTABLE ELEMENT OF THE FIRST STAGE TO ENABLE THE SWITCHING DEVICE OF SAID FIRST STAGE, AND MEANS RESPONSIVE TO THE APPEARANCE OF THE TRAILING EDGE OF A DRIVING PULSE ACROSS THE DIFFERENTIATING TRANSFORMER OF A STAGE WHOSE BISTABLE ELEMENT IS IN A SET CONDITION FOR RESETTING THE BISTABLE ELEMENT IN SAID STAGE AND FOR SETTING THE BISTABLE ELEMENT OF THE NEXT FOLLOWING STAGE.
Claim 2
Dependent Claim
152 words
IN COMBINATION IN A STEPPING SWITCH CIRCUIT, A PLURALITY OF STAGES EACH INCLUDING A SWITCHING DEVICE AND A BISTABLE ELEMENT FOR CONTROLLING THE CONDITION OF SAID DEVICE, EACH OF SAID ELEMENTS BEING CHARACTERIZED BY SET AND RESET CONDITIONS, EACH STAGE ALSO INCLUDING A DIFFERENTIATING TRANSFORMER HAVING A PRIMARY WINDING, A ONEPHASE SOURCE FOR SUPPLYING DRIVING SIGNALS EACH CHARACTERIZED BY A TRAILING EDGE, SAID SOURCE BEING CONNECTED TO THE SWITCHING DEVICE OF EACH STAGE VIA THE PRIMARY WINDING OF THE DIFFERENTIATING TRANSFORMER THEREOF, A START PULSE SOURCE FOR SETTING THE BISTABLE ELEMENT OF THE FIRST STAGE TO ENABLE THE SWITCHING DEVICE OF SAID FIRST STAGE, AND MEANS RESPONSIVE TO THE APPEARANCE OF THE TRAILING EDGE OF A DRIVING PULSE ACROSS THE DIFFERENTIATING TRANSFORMER OF A STAGE WHOSE BISTABLE ELEMENT IS IN A SET CONDITION FOR RESETTING THE BISTABLE ELEMENT IN SAID STAGE AND FOR SETTING THE BISTABLE ELEMENT OF THE NEXT FOLLOWING STAGE.
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) | 1967-03-17 | 1967-09-16 | 1968-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-03-17 | 1971-09-16 | 1972-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-03-17 | 1975-09-16 | 1976-03-17 | $7700.00 | Window Closed / Lapsed |