US2995780A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Treatment of metal powder
Assignee: Huntington Alloys Corp
•
Filing: 1959-12-02
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Granted: 1961-08-15
•
Expires: 1979-12-02
Abstract
No abstract record available.
Inventors
- 👤 De Witt H West
- 👤 David M Llewelyn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:46
CPC Classifications
B; B22; B22F; B22F9/00; B22F9/02; B22F9/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
125 words
A PROCESS FOR SUBSTANTIALLY INCREASING THE SIZE OF SOFT METAL PARTICLES SELECTED FROM THE GROUP CONSISTING OF NICKEL, IRON, ALUMINUM AND COPPER POWDERS HAVING A PARTICLE SIZE IN THE RANGE OF ABOUT 2 TO ABOUT 8 MICRONS COMPRISING PROVIDING A CHARGE OF GRINDING BALLS AND SUBSTANTIALLY DRY, SOFT METAL POWDERS AND SUBJECTING SAID SUBSTANTIALLY DRY CHARGE WITHIN A CONFINING MEANS TO AN ACCELERATION OF AT LEAST ABOUT ONE GRAVITY INDUCED BY ROTATION OF SAID CONFINING MEANS ABOUT ITS AXIS WHILE SUBSTANTIALLY SIMULTANEOUSLY SUBJECTING SAID CHARGE TO AN ACCELERATION OF AT LEAST ABOUT TWO TIMES GREATER THAN SAID ROTATIONALLY-INDUCED ACCELERATION, SAID ACCELERATION BEING INDUCED EXTERNALLY WITH RESPECT TO SAID CONFINING MEANS, AND BEING APPLIED IN A DIRECTION SUBSTANTIALLY PERPENDICULAR TO THE AXIS OF SAID CONFINING MEANS.
Claim 2
Dependent Claim
125 words
A PROCESS FOR SUBSTANTIALLY INCREASING THE SIZE OF SOFT METAL PARTICLES SELECTED FROM THE GROUP CONSISTING OF NICKEL, IRON, ALUMINUM AND COPPER POWDERS HAVING A PARTICLE SIZE IN THE RANGE OF ABOUT 2 TO ABOUT 8 MICRONS COMPRISING PROVIDING A CHARGE OF GRINDING BALLS AND SUBSTANTIALLY DRY, SOFT METAL POWDERS AND SUBJECTING SAID SUBSTANTIALLY DRY CHARGE WITHIN A CONFINING MEANS TO AN ACCELERATION OF AT LEAST ABOUT ONE GRAVITY INDUCED BY ROTATION OF SAID CONFINING MEANS ABOUT ITS AXIS WHILE SUBSTANTIALLY SIMULTANEOUSLY SUBJECTING SAID CHARGE TO AN ACCELERATION OF AT LEAST ABOUT TWO TIMES GREATER THAN SAID ROTATIONALLY-INDUCED ACCELERATION, SAID ACCELERATION BEING INDUCED EXTERNALLY WITH RESPECT TO SAID CONFINING MEANS, AND BEING APPLIED IN A DIRECTION SUBSTANTIALLY PERPENDICULAR TO THE AXIS OF SAID CONFINING MEANS.
References Cited (Backward Citations)
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Cited
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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) | 1964-08-14 | 1965-02-13 | 1965-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-08-14 | 1969-02-13 | 1969-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-08-14 | 1973-02-13 | 1973-08-15 | $7700.00 | Window Closed / Lapsed |