Patent US3773219A successfully refreshed from Google Patents.
Patent US3158516A successfully refreshed from Google Patents.
US3158516A
Expired / Lapsed
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Method for producing alloy bodies having improved magnetic properties
Assignee: General Electric Co
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Filing: 1964-05-11
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Granted: 1964-11-24
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Expires: 1984-05-11
Abstract
No abstract record available.
Inventors
- 👤 John L Walter
- 👤 Howard C Fiedler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:31
CPC Classifications
C; C21; C21D; C21D8/00; C21D8/12; C21D8/1244; C21D1/00; C21D1/04; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/4902; Y10T29/49021; Y10T29/49032; Y10T29/49034
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
156 words
A METHOD FOR IMPROVING THE MAGNETIC CHARACTERISTICS OF A SHEET-LIKE BODY COMPOSED OF BODY-CENTERED CUBIC MAGNETIC MATERIAL CONSISTING ESSENTIALLY OF AT LEAST 92 PERCENT IRON, UP TO 5 PERCENT SILICON, UP TO 5 PERCENT MOLYBDENUM, AND UP TO 8 PERCENT ALUMINUM HAVING AN INITIAL MAGNETOSTRICTION GREATER THAN ZERO AND HAVING A MAJORITY OF THE CONSTITUENT GRAINS THEREOF IN THE (100) (001) ORIENTATION TO PROVIDE TWO DIRECTIONS OF EASIEST MAGNETIZATION IN THE PLANE OF SAID SHEET-LIKE BODY, SAID METHOD COMPRISING HEATING SAID SHEET-LIKE BODY TO AN ELEVATED TEMPERATURE AT ABOUT THE CURIE POINT AND COOLING SAID BODY WHILE SIMULTANEOUSLY SUBJECTING IT TO AN APPLIED MAGNETIC FIELD ACTING SUBSTANTIALLY PARALLEL TO ONE OF THE EASIEST DIRECTIONS OF MAGNETIZATIONS TO ALIGN THE MAGNETIC DOMAINS AND CAUSE THE BODY TO HAVE A MAGNETOSTRICTION OF FROM ABOUT -0.5 TO 1.0 WHEN SUBJECTED TO A MAGNETIC FIELD OF ABOUT 15.5 KILOGAUSSES APPLIED GENERALLY PARALLEL TO ONE OF THE EASY DIRECTIONS OF MAGNETIZATION.
Claim 2
Independent Claim
156 words
A METHOD FOR IMPROVING THE MAGNETIC CHARACTERISTICS OF A SHEET-LIKE BODY COMPOSED OF BODY-CENTERED CUBIC MAGNETIC MATERIAL CONSISTING ESSENTIALLY OF AT LEAST 92 PERCENT IRON, UP TO 5 PERCENT SILICON, UP TO 5 PERCENT MOLYBDENUM, AND UP TO 8 PERCENT ALUMINUM HAVING AN INITIAL MAGNETOSTRICTION GREATER THAN ZERO AND HAVING A MAJORITY OF THE CONSTITUENT GRAINS THEREOF IN THE (100) (001) ORIENTATION TO PROVIDE TWO DIRECTIONS OF EASIEST MAGNETIZATION IN THE PLANE OF SAID SHEET-LIKE BODY, SAID METHOD COMPRISING HEATING SAID SHEET-LIKE BODY TO AN ELEVATED TEMPERATURE AT ABOUT THE CURIE POINT AND COOLING SAID BODY WHILE SIMULTANEOUSLY SUBJECTING IT TO AN APPLIED MAGNETIC FIELD ACTING SUBSTANTIALLY PARALLEL TO ONE OF THE EASIEST DIRECTIONS OF MAGNETIZATIONS TO ALIGN THE MAGNETIC DOMAINS AND CAUSE THE BODY TO HAVE A MAGNETOSTRICTION OF FROM ABOUT -0.5 TO 1.0 WHEN SUBJECTED TO A MAGNETIC FIELD OF ABOUT 15.5 KILOGAUSSES APPLIED GENERALLY PARALLEL TO ONE OF THE EASY DIRECTIONS OF MAGNETIZATION.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-11-24 | 1968-05-25 | 1968-11-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-11-24 | 1972-05-25 | 1972-11-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-11-24 | 1976-05-25 | 1976-11-24 | $7700.00 | Window Closed / Lapsed |