US3074052A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic core delay circuit for use in digital computers
Assignee: Allard Way Holdings Ltd
•
Filing: 1957-04-08
•
Granted: 1963-01-15
•
Expires: 1977-04-08
Abstract
No abstract record available.
Inventors
- 👤 Bunt John Percival
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 08:09
CPC Classifications
G; G11; G11C; G11C19/00; G11C19/02; G11C19/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
92 words
A MAGNETIC CORE DIGIT DELAY CIRCUIT COMPRISING AT LEAST TWO CORES OF MATERIAL HAVING A SUBSTANTIALLY RECTANGULAR HYSTERESIS CURVE CONNECTED IN SUCCESSION, EACH CORE HAVING AN INPUT WINDING, AN OUTPUT WINDING, A FEEDBACK WINDING AND A TRIGGER WINDING, ALL SAID TRIGGER WINDINGS BEING CONNECTED TOGETHER FOR SIMULTANEOUS APPLICATION OF A READ OUT TRIGGER PULSE TO ALL SAID CORES, AND A TRANSISTOR HAVING A BASE AND AN EMITTER CONNECTED WITH SAID OUTPUT WINDING AND A COLLECTOR CONNECTED THROUGH SAID FEEDBACK WINDING AND A LOAD RESISTOR WITH THE INPUT WINDING OF THE NEXT CORE.
Claim 2
Dependent Claim
92 words
A MAGNETIC CORE DIGIT DELAY CIRCUIT COMPRISING AT LEAST TWO CORES OF MATERIAL HAVING A SUBSTANTIALLY RECTANGULAR HYSTERESIS CURVE CONNECTED IN SUCCESSION, EACH CORE HAVING AN INPUT WINDING, AN OUTPUT WINDING, A FEEDBACK WINDING AND A TRIGGER WINDING, ALL SAID TRIGGER WINDINGS BEING CONNECTED TOGETHER FOR SIMULTANEOUS APPLICATION OF A READ OUT TRIGGER PULSE TO ALL SAID CORES, AND A TRANSISTOR HAVING A BASE AND AN EMITTER CONNECTED WITH SAID OUTPUT WINDING AND A COLLECTOR CONNECTED THROUGH SAID FEEDBACK WINDING AND A LOAD RESISTOR WITH THE INPUT WINDING OF THE NEXT CORE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-01-14 | 1966-07-16 | 1967-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-14 | 1970-07-16 | 1971-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-14 | 1974-07-16 | 1975-01-15 | $7700.00 | Window Closed / Lapsed |