Patent US3427441A successfully refreshed from Google Patents.
Patent US3102229A successfully refreshed from Google Patents.
US3102229A
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Industrial process control apparatus employing magnetic amplification
Assignee: Schneider Electric Systems USA Inc
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Filing: 1958-03-26
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Granted: 1963-08-27
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Expires: 1978-03-26
Abstract
No abstract record available.
Inventors
- 👤 Horace E Darling
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:37
CPC Classifications
G; G05; G05B; G05B11/00; G05B11/01; G05B11/012; G05B11/016; H; H03; H03F; H03F9/00; H03F9/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
119 words
MAGNETIC AMPLIFICATION APPARATUS FOR USE IN INDUSTRIAL PROCESS CONTROL SYSTEMS AND THE LIKE, COMPRISING, IN COMBINATION, FIRST AND SECOND MAGNETIC AMPLIFIERS CONNECTED TOGETHER IN A CASCADED ARRANGEMENT, EACH OF SAID AMPLIFIERS COMPRISING SATURABLE CORE MEANS DEFINING A PAIR OF FLUX PATHS, INPUT WINDING MEANS FOR EACH OF SAID MAGNETIC AMPLIFIERS AND COUPLED TO THE CORRESPONDING PAIR OF FLUX PATHS, OUTPUT WINDING MEANS FOR EACH OF SAID MAGNETIC AMPLIFIERS AND COUPLED TO THE CORRESPONDING PAIR OF FLUX PATHS, MEANS COUPLING THE OUTPUT WINDING MEANS OF ONE OF SAID MAGNETIC AMPLIFIERS TO THE INPUT WINDING MEANS OF THE OTHER OF SAID MAGNETRIC AMPLIFIERS, AND STABILIZING MEANS COMPRISING A.-C. COUPLING MEANS ARRANGED TO LINK TOGETHER THE RESPECTIVE CORE MEANS OF SAID FIRST
Claim 2
Dependent Claim
119 words
MAGNETIC AMPLIFICATION APPARATUS FOR USE IN INDUSTRIAL PROCESS CONTROL SYSTEMS AND THE LIKE, COMPRISING, IN COMBINATION, FIRST AND SECOND MAGNETIC AMPLIFIERS CONNECTED TOGETHER IN A CASCADED ARRANGEMENT, EACH OF SAID AMPLIFIERS COMPRISING SATURABLE CORE MEANS DEFINING A PAIR OF FLUX PATHS, INPUT WINDING MEANS FOR EACH OF SAID MAGNETIC AMPLIFIERS AND COUPLED TO THE CORRESPONDING PAIR OF FLUX PATHS, OUTPUT WINDING MEANS FOR EACH OF SAID MAGNETIC AMPLIFIERS AND COUPLED TO THE CORRESPONDING PAIR OF FLUX PATHS, MEANS COUPLING THE OUTPUT WINDING MEANS OF ONE OF SAID MAGNETIC AMPLIFIERS TO THE INPUT WINDING MEANS OF THE OTHER OF SAID MAGNETRIC AMPLIFIERS, AND STABILIZING MEANS COMPRISING A.-C. COUPLING MEANS ARRANGED TO LINK TOGETHER THE RESPECTIVE CORE MEANS OF SAID FIRST
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-08-26 | 1967-02-25 | 1967-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-08-26 | 1971-02-25 | 1971-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-08-26 | 1975-02-25 | 1975-08-27 | $7700.00 | Window Closed / Lapsed |