US2679932A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manufacture of magnesium alloy extrusions
Assignee: Dow Chemical Co
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Filing: 1953-03-18
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Granted: 1954-06-01
•
Expires: 1973-03-18
Abstract
No abstract record available.
Inventors
- 👤 Jay R Burns
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:24
CPC Classifications
B; B22; B22F; B22F3/00; B22F3/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
122 words
THE METHOD OF MAKING EXTRUSIONS HAVING A SURFACE FREE FROM BLISTERS OF A MAGNESIUM-BASE ALLOY IN THE FORM OF ATOMIZED POWDER, SAID POWDER CONSISTING OF SPHERICAL PARTICLES OF THE ALLOY AND NONMETALLIC CONTAMINANTS IN THE FORM OF FRIABLE PARTICLES ACQUIRED AS NORMAL CONTAMINANTS IN THE PROCESS OF MAKING THE SAID ATOMIZED POWDER, WHICH COMPRISES SUBJECTING THE ATOMIZED PARTICLES TO A DIFFERENTIAL COMMINUTION IN WHICH THE SOLID FRIABLE NONMETALLIC CONTAMINANTS ARE CRUSHED IN THE PRESENCE OF THE METALLIC PARTICLES AND THE CRUSHED PARTICLES DISSEMINATED UNIFORMLY THROUGHOUT THE MASS OF METALLIC PARTICLES WITHOUT SUBSTANTIALLY REDUCING THE DIMENSIONS OF THE METALLIC PARTICLES, HEATING THE RESULTING MIXTURE OF METALLIC PARTICLES AND CRUSHED NONMETALLIC PARTICLES TO EXTRUDING TEMPERTURE, AND DIE-EXPRESSING THE HEATED MIXTURE TO FORM AN EXTRUSION.
Claim 2
Independent Claim
122 words
THE METHOD OF MAKING EXTRUSIONS HAVING A SURFACE FREE FROM BLISTERS OF A MAGNESIUM-BASE ALLOY IN THE FORM OF ATOMIZED POWDER, SAID POWDER CONSISTING OF SPHERICAL PARTICLES OF THE ALLOY AND NONMETALLIC CONTAMINANTS IN THE FORM OF FRIABLE PARTICLES ACQUIRED AS NORMAL CONTAMINANTS IN THE PROCESS OF MAKING THE SAID ATOMIZED POWDER, WHICH COMPRISES SUBJECTING THE ATOMIZED PARTICLES TO A DIFFERENTIAL COMMINUTION IN WHICH THE SOLID FRIABLE NONMETALLIC CONTAMINANTS ARE CRUSHED IN THE PRESENCE OF THE METALLIC PARTICLES AND THE CRUSHED PARTICLES DISSEMINATED UNIFORMLY THROUGHOUT THE MASS OF METALLIC PARTICLES WITHOUT SUBSTANTIALLY REDUCING THE DIMENSIONS OF THE METALLIC PARTICLES, HEATING THE RESULTING MIXTURE OF METALLIC PARTICLES AND CRUSHED NONMETALLIC PARTICLES TO EXTRUDING TEMPERTURE, AND DIE-EXPRESSING THE HEATED MIXTURE TO FORM AN EXTRUSION.
References Cited (Backward Citations)
US2630623A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-05-31 | 1957-11-30 | 1958-06-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-05-31 | 1961-11-30 | 1962-06-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-05-31 | 1965-11-30 | 1966-06-01 | $7700.00 | Window Closed / Lapsed |