US3377518A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetostrictive delay line driver
Assignee: International Business Machines Corp
•
Filing: 1966-06-01
•
Granted: 1968-04-09
•
Expires: 1986-06-01
Abstract
No abstract record available.
Inventors
- 👤 Jerry K Radcliffe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:26
CPC Classifications
H; H03; H03K; H03K3/00; H03K3/02; H03K3/26; H03K3/28; H03K3/281; H03K3/286
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
135 words
AN ELECTRONIC SWITCHING CIRCUIT FOR DRIVING A LARGE INDUCTIVE LOAD AT HIGH FREQUENCY DATA PULSE RATES SUBSTANTIALLY FREE OF PATTERN SENSITIVITY, COMPRISING A LOW VOLTAGE SOURCE OF ENERGY HAVING A PAIR OF TERMINALS, A FIRST CONDUCTIVE PATH FOR CURRENT INCLUDING A FIRST RESISTOR, A FIRST INDUCTOR AND A FIRST TRANSISTOR SWITCH CONNECTED IN SERIES BETWEEN THE TERMINALS, A SECOND CONDUCTIVE PATH FOR CURRENT INCLUDING A SECOND TRANSISTOR SWITCH AND THE INDUCTIVE LOAD CONNECTED IN SERIES BETWEEN ONE OF THE TERMINALS AND THE JUNCTION BETWEEN THE INDUCTOR AND THE FIRST TRANSISTOR SWITCH, AND MEANS FOR TURNING THE FIRST SWITCH FROM AN ON TO AN OFF STATE AND THE SECOND SWITCH FROM AN OFF TO AN ON STATE TO INDUCE IN THE INDUCTOR A VOLTAGE SPIKE WHICH CAUSES A RAPID RISE IN CURRENT IN THE INDUCTIVE LOAD,
Claim 2
Dependent Claim
135 words
AN ELECTRONIC SWITCHING CIRCUIT FOR DRIVING A LARGE INDUCTIVE LOAD AT HIGH FREQUENCY DATA PULSE RATES SUBSTANTIALLY FREE OF PATTERN SENSITIVITY, COMPRISING A LOW VOLTAGE SOURCE OF ENERGY HAVING A PAIR OF TERMINALS, A FIRST CONDUCTIVE PATH FOR CURRENT INCLUDING A FIRST RESISTOR, A FIRST INDUCTOR AND A FIRST TRANSISTOR SWITCH CONNECTED IN SERIES BETWEEN THE TERMINALS, A SECOND CONDUCTIVE PATH FOR CURRENT INCLUDING A SECOND TRANSISTOR SWITCH AND THE INDUCTIVE LOAD CONNECTED IN SERIES BETWEEN ONE OF THE TERMINALS AND THE JUNCTION BETWEEN THE INDUCTOR AND THE FIRST TRANSISTOR SWITCH, AND MEANS FOR TURNING THE FIRST SWITCH FROM AN ON TO AN OFF STATE AND THE SECOND SWITCH FROM AN OFF TO AN ON STATE TO INDUCE IN THE INDUCTOR A VOLTAGE SPIKE WHICH CAUSES A RAPID RISE IN CURRENT IN THE INDUCTIVE LOAD,
References Cited (Backward Citations)
US3344321A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-04-09 | 1971-10-09 | 1972-04-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-09 | 1975-10-09 | 1976-04-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-09 | 1979-10-09 | 1980-04-09 | $7700.00 | Window Closed / Lapsed |