Patent US3270412A successfully refreshed from Google Patents.
US3270412A
Expired / Lapsed
US
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Method of producing dispersoid strengthened material
Assignee: Colt Industries Operating Corp
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Filing: 1962-06-07
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Granted: 1966-09-06
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Expires: 1982-06-07
Abstract
No abstract record available.
Inventors
- 👤 Milton B Vordahl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 13:54
CPC Classifications
B; B23; B23K; B23K20/00; B23K20/04; B21; B21B; B21B1/00; B21B1/38; B23K35/00; B23K35/22; B23K35/224; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/9335; Y10S428/941
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
139 words
A METHOD OF PRODUCING STABLE DISPERSOID STRENGTHENED BASE METAL ARTICLES COMPRISING: (A) ROLLING THE METAL TO FOIL; (B) APPLYING TO THE FOIL A COATING OF A STABLE DISPERSOID FORMING MATERIAL SELECTED FROM THE GROUP CONSISTING OF METAL OXIDES, NITRIDES, BORIDES, SILICIDES, CARBIDES, AND SULFIDES WHICH ARE STABLE AND INSOLUBLE IN THE BASE METAL AT TEMPERATURES UP TO THE MAXIMUM END USE APPLICATION TEMPERATURE OF THE ARTICLE; (C) FORMING LAMINAE BY CUTTING THE COATED FOIL INTO DESIRED LENGTHS; (D) STACKING A PLURALITY OF LAMINAE INTO A PACK FOR ROLLING; (E) ROLLING THE PACK TO A REDUCED THICKNESS; (F) REPEATING THE CUTTING, STACKING AND ROLLING STEPS UNTIL A UNITARY ARTICLE IS OBTAINED WHEREIN THE LAMINAE ARE WELDED TOGETHER TO FORM A CONTINUOUS METAL MATRIX AND WHEREIN SUBMICRON-SIZED PARTICLES OF THE STABLE DISPERSOID MATERIAL ARE SUBSTANTIALLY UNIFORMLY DISTRIBUTED THROUGHOUT THE MATRIX VOLUME.
Claim 2
Independent Claim
139 words
A METHOD OF PRODUCING STABLE DISPERSOID STRENGTHENED BASE METAL ARTICLES COMPRISING: (A) ROLLING THE METAL TO FOIL; (B) APPLYING TO THE FOIL A COATING OF A STABLE DISPERSOID FORMING MATERIAL SELECTED FROM THE GROUP CONSISTING OF METAL OXIDES, NITRIDES, BORIDES, SILICIDES, CARBIDES, AND SULFIDES WHICH ARE STABLE AND INSOLUBLE IN THE BASE METAL AT TEMPERATURES UP TO THE MAXIMUM END USE APPLICATION TEMPERATURE OF THE ARTICLE; (C) FORMING LAMINAE BY CUTTING THE COATED FOIL INTO DESIRED LENGTHS; (D) STACKING A PLURALITY OF LAMINAE INTO A PACK FOR ROLLING; (E) ROLLING THE PACK TO A REDUCED THICKNESS; (F) REPEATING THE CUTTING, STACKING AND ROLLING STEPS UNTIL A UNITARY ARTICLE IS OBTAINED WHEREIN THE LAMINAE ARE WELDED TOGETHER TO FORM A CONTINUOUS METAL MATRIX AND WHEREIN SUBMICRON-SIZED PARTICLES OF THE STABLE DISPERSOID MATERIAL ARE SUBSTANTIALLY UNIFORMLY DISTRIBUTED THROUGHOUT THE MATRIX VOLUME.
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) | 1969-09-05 | 1970-03-07 | 1970-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-05 | 1974-03-07 | 1974-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-05 | 1978-03-07 | 1978-09-06 | $7700.00 | Window Closed / Lapsed |