US2752434A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magneto-responsive device
Assignee: General Electric Co
•
Filing: 1952-03-22
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Granted: 1956-06-26
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Expires: 1972-03-22
Abstract
No abstract record available.
Inventors
- 👤 Jr William Crawford Dunlap
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 17:47
CPC Classifications
G; G01; G01D; G01D5/00; G01D5/12; G01D5/14; G01D5/142; G01D5/145
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
143 words
A MAGNETO-RESPONSIVE DEVICE SYSTEM FOR PROVIDING AN AMPLIFIED REPLICA OF A SIGNAL VOLTAGE COMPRISING AN ELECTROMAGNETIC STRUCTURE HAVING A WINDING EXCITED IN ACCORDANCE WITH SAID SIGNAL VOLTAGE, A PAPER-THIN HIGH RESISTANCE GERMANIUM SHEET ARRANGED ENTIRELY WITHIN A GAP IN SAID MAGNETIC STRUCTURE, THE RESISTANCE OF SAID GERMANIUM SHEET BEING CONTROLLED BY A MAGNETIC FIELD SET UP BY SAID STRUCTURE, SHEET-SUPPORTING INSULATING MEMBERS SECURED TO OPPOSITE FACES OF SAID SHEET, CONNECTIONS AT OPPOSITE EDGES OF SAID SHEET FOR SUPPLYING A CURRENT THROUGH SAID GERMANIUM SHEET IN A DIRECTION PERPENDICULAR TO SAID MAGNETIC FIELD TO DERIVE AN OUTPUT VOLTAGE BETWEEN SAID CONNECTIONS VARYING IN ACCORDANCE WITH THE RESISTANCE OF SAID SHEET, A VOLTAGE SOURCE CONNECTED TO ONE OF SAID CONNECTIONS, AND A LOAD ELEMENT CONNECTED TO THE REMAINING CONNECTION, SAID VOLTAGE SOURCE, SAID GERMANIUM SHEET, AND SAID LOAD ELEMENT BEING CONNECTED IN SERIES CIRCUIT RELATIONSHIP.
Claim 2
Dependent Claim
143 words
A MAGNETO-RESPONSIVE DEVICE SYSTEM FOR PROVIDING AN AMPLIFIED REPLICA OF A SIGNAL VOLTAGE COMPRISING AN ELECTROMAGNETIC STRUCTURE HAVING A WINDING EXCITED IN ACCORDANCE WITH SAID SIGNAL VOLTAGE, A PAPER-THIN HIGH RESISTANCE GERMANIUM SHEET ARRANGED ENTIRELY WITHIN A GAP IN SAID MAGNETIC STRUCTURE, THE RESISTANCE OF SAID GERMANIUM SHEET BEING CONTROLLED BY A MAGNETIC FIELD SET UP BY SAID STRUCTURE, SHEET-SUPPORTING INSULATING MEMBERS SECURED TO OPPOSITE FACES OF SAID SHEET, CONNECTIONS AT OPPOSITE EDGES OF SAID SHEET FOR SUPPLYING A CURRENT THROUGH SAID GERMANIUM SHEET IN A DIRECTION PERPENDICULAR TO SAID MAGNETIC FIELD TO DERIVE AN OUTPUT VOLTAGE BETWEEN SAID CONNECTIONS VARYING IN ACCORDANCE WITH THE RESISTANCE OF SAID SHEET, A VOLTAGE SOURCE CONNECTED TO ONE OF SAID CONNECTIONS, AND A LOAD ELEMENT CONNECTED TO THE REMAINING CONNECTION, SAID VOLTAGE SOURCE, SAID GERMANIUM SHEET, AND SAID LOAD ELEMENT BEING CONNECTED IN SERIES CIRCUIT RELATIONSHIP.
References Cited (Backward Citations)
US543843A
Cited
US1596558A
Cited
US1778796A
Cited
US1794376A
Cited
US2226847A
Cited
US2464807A
Cited
US2500953A
Cited
US2571915A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-06-26 | 1959-12-26 | 1960-06-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-06-26 | 1963-12-26 | 1964-06-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-06-26 | 1967-12-26 | 1968-06-26 | $7700.00 | Window Closed / Lapsed |