US3406332A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Galvanomagnetic resistance device with feedback coupled excitation winding
Assignee: Siemens AG
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Filing: 1966-06-17
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Granted: 1968-10-15
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Expires: 1986-06-17
Abstract
No abstract record available.
Inventors
- 👤 Hieronymus Hans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:07
CPC Classifications
G; G06; G06G; G06G7/00; G06G7/12; G06G7/16; G06G7/162
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
150 words
A MULTIPLIER CIRCUIT COMPRISING A PAIR OF GALVANOMAGNETIC RESISTANCE DEVICES CONNECTED IN SERIES WITH EACH OTHER, EACH OF SAID GALVANOMAGNETIC RESISTANCE DEVICES, COMPRISING AN ELECTROMAGNET HAVING AN EXCITATION WINDING AND AN AIR GAP; A FIRST FIELD PLATE POSITIONED IN THE AIR GAP OF SAID ELECTROMAGNET AND HAVING AN ELECTRICAL RESISTANCE AND A CURRENT FLOW THERETHROUGH; A SECOND FIELD PLATE POSITIONED IN THE AIR GAP OF SAID ELECTROMAGET; A RESISTOR CONNECTED IN SERIES WITH SAID SECOND FIELD PLATE TO PROVIDE A SERIES CONNECTION; CONNECTING MEANS CONNECTING SAID SERIES CONNECTION OF SECOND FIELD PLATE AND SAID RESISTOR IN PARALLEL WITH THE EXCITATION WINDING OF SAID ELECTROMAGNET WHEREBY THE RESISTANCE OF SAID FIELD PLATE VARIES IN PROPORTION WITH THE SQUARE OF A TOTAL CURRENT SUPPLIED TO SAID EXCITATION WINDING AND SAID SERIES CONNECTION; AND SUPPLY MEANS FOR SUPPLYING A TOTAL CURRENT TO SAID EXCITATION WINDING AND SAID SERIES CONNECTION CONNECTED IN PARALLEL THEREWITH.
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) | 1971-10-15 | 1972-04-15 | 1972-10-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-15 | 1976-04-15 | 1976-10-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-15 | 1980-04-15 | 1980-10-15 | $7700.00 | Window Closed / Lapsed |