US3219909A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transducer
Assignee: Reliance Electric and Engineering Co
•
Filing: 1963-04-01
•
Granted: 1965-11-23
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Expires: 1983-04-01
Abstract
No abstract record available.
Inventors
- 👤 George B Foster
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 10:29
CPC Classifications
H; H10; H10N; H10N52/00; H10N52/80
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
74 words
A TRANSDUCER COMPRISING A HALL GENERATOR, A VARIABLE SOURCE FOR PASSING A VARIABLE EXCITATION CURRENT THROUGH SAID GENERATOR, MEANS FOR APPLYING FIRST AND SECOND MAGNETIC FIELDS TO SAID GENERATOR TO PRODUCE FIRST AND SECOND ELECTRICAL OUTPUTS FROM SAID GENERATOR CORRESPONDING TO SAID MAGNETIC FIELDS, MEANS FOR DISTINGUISHING BETWEEN SAID OUTPUTS, AND MEANS FOR VARYING SAID SOURCE IN ACCORDANCE WITH ONLY ONE OF SAID OUTPUTS TO MAINTAIN THE CONVERSION EFFICIENCY OF SAID TRANSDUCER SUBSTANTIALLY CONSTANT.
Claim 2
Dependent Claim
74 words
A TRANSDUCER COMPRISING A HALL GENERATOR, A VARIABLE SOURCE FOR PASSING A VARIABLE EXCITATION CURRENT THROUGH SAID GENERATOR, MEANS FOR APPLYING FIRST AND SECOND MAGNETIC FIELDS TO SAID GENERATOR TO PRODUCE FIRST AND SECOND ELECTRICAL OUTPUTS FROM SAID GENERATOR CORRESPONDING TO SAID MAGNETIC FIELDS, MEANS FOR DISTINGUISHING BETWEEN SAID OUTPUTS, AND MEANS FOR VARYING SAID SOURCE IN ACCORDANCE WITH ONLY ONE OF SAID OUTPUTS TO MAINTAIN THE CONVERSION EFFICIENCY OF SAID TRANSDUCER SUBSTANTIALLY CONSTANT.
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) | 1968-11-22 | 1969-05-24 | 1969-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-22 | 1973-05-24 | 1973-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-22 | 1977-05-24 | 1977-11-23 | $7700.00 | Window Closed / Lapsed |