Patent US2943007A successfully refreshed from Google Patents.
US2943007A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for casting and working grain oriented ingots
Assignee: General Electric Co
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Filing: 1957-08-26
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Granted: 1960-06-28
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Expires: 1977-08-26
Abstract
No abstract record available.
Inventors
- 👤 John L Walter
- 👤 Henry J Fisher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:24
CPC Classifications
H; H01; H01F; H01F1/00; H01F1/01; H01F1/03; H01F1/12; H01F1/14; H01F1/16; B; B22; B22D; B22D27/00; B22D27/04; B22D27/045; C; C21; C21D; C21D8/00; C21D8/12; C21D8/1205; C30; C30B; C30B1/00; C30B1/02; C30B29/00; C30B29/10; C30B29/52; C21D8/1216; C21D8/1244; C21D8/1272
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
159 words
A METHOD FOR PREPARING CUBE TEXTURE SOFT MAGNETIC SHEET METAL COMPRISING THE STEPS OF PROVIDING A CASTING CONSISTING ESSENTIALLY OF IRON COMPRISING A PLURALITY OF ELONGATED COLUMNAR GRAINS HAVING THEIR LONGITUDINAL AXES EXTENDING SUBSTANTIALLY PARALLEL TO A FIRST SINGLE DIRECTION, A MAJORITY OF SAID ELONGATED GRAINS HAVING A UNIT CUBE FACE OF THEIR CRYSTAL LATTICES SUBSTANTIALLY PARALLEL TO SAID FIRST DIRECTION AND SUBSTANTIALLY PERPENDICULAR TO A SINGLE SECOND DIRECTION WHICH IS SUBSTANTIALLY PERPENDICULAR TO SAID FIRST DIRECTION, REDUCING THE CASTING INTO SHEET METAL BY A PLURALITY OF ROLLING PASSES IN THE MAJORITY OF WHICH ROLLING PASSES THE FIRST DIRECTION IS MAINTAINED SUBSTANTIALLY PARALLEL TO THE ROLLING PLANE AND SUBSTANTIALLY PERPENDICULAR TO THE ROLLING DIRECTION AND THE SECOND DIRECTION IS MAINTAINED SUBSTANTIALLY PERPENDICULAR TO THE ROLLING PLANE AND TO THE ROLLING DIRECTION, AND ANNEALING THE COLD ROLLED SHEET METAL BY HEATING TO AT LEAST 1150*C. IN A HYDROGEN ATMOSPHERE AND SLOWLY COOLING THE RECRYSTALLIZED SHEET METAL IN THE HYDROGEN ATMOSPHERE.
Claim 2
Independent Claim
159 words
A METHOD FOR PREPARING CUBE TEXTURE SOFT MAGNETIC SHEET METAL COMPRISING THE STEPS OF PROVIDING A CASTING CONSISTING ESSENTIALLY OF IRON COMPRISING A PLURALITY OF ELONGATED COLUMNAR GRAINS HAVING THEIR LONGITUDINAL AXES EXTENDING SUBSTANTIALLY PARALLEL TO A FIRST SINGLE DIRECTION, A MAJORITY OF SAID ELONGATED GRAINS HAVING A UNIT CUBE FACE OF THEIR CRYSTAL LATTICES SUBSTANTIALLY PARALLEL TO SAID FIRST DIRECTION AND SUBSTANTIALLY PERPENDICULAR TO A SINGLE SECOND DIRECTION WHICH IS SUBSTANTIALLY PERPENDICULAR TO SAID FIRST DIRECTION, REDUCING THE CASTING INTO SHEET METAL BY A PLURALITY OF ROLLING PASSES IN THE MAJORITY OF WHICH ROLLING PASSES THE FIRST DIRECTION IS MAINTAINED SUBSTANTIALLY PARALLEL TO THE ROLLING PLANE AND SUBSTANTIALLY PERPENDICULAR TO THE ROLLING DIRECTION AND THE SECOND DIRECTION IS MAINTAINED SUBSTANTIALLY PERPENDICULAR TO THE ROLLING PLANE AND TO THE ROLLING DIRECTION, AND ANNEALING THE COLD ROLLED SHEET METAL BY HEATING TO AT LEAST 1150*C. IN A HYDROGEN ATMOSPHERE AND SLOWLY COOLING THE RECRYSTALLIZED SHEET METAL IN THE HYDROGEN ATMOSPHERE.
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) | 1963-06-28 | 1963-12-28 | 1964-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-28 | 1967-12-28 | 1968-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-28 | 1971-12-28 | 1972-06-28 | $7700.00 | Window Closed / Lapsed |