US3206128A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Autogenous grinding method
Assignee: Nordberg Manufacturing Co
•
Filing: 1962-10-09
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Granted: 1965-09-14
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Expires: 1982-10-09
Abstract
No abstract record available.
Inventors
- 👤 Arthur R Macpherson
- 👤 Guy L Saunders
- 👤 Robert C Meaders
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 06:15
CPC Classifications
B; B02; B02C; B02C17/00; B02C17/18; B02C17/04; B02C17/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
176 words
A METHOD OF CRUSHING AND GRINDING WHICH INCLUDES PROVIDING A GENERALLY CYLINDRICAL REDUCTION ZONE, MAINTAINING THE INTERIOR OF SUCH ZONE SUBSTANTIALLY EMPTY EXCEPT FOR PARTICLES UNDERGOING REDUCTION, DELIVERING MATERIAL FOR REDUCTION TO THE INTERIOR OF SUCH ZONE, WITH THE SIZE OF PARTICLES VARYING FROM FINES TO A PREDETERMINED MAXIMU, IMPARTING ROTARY MOVEMENT TO THE MASS OF MATERIAL WITHIN THE ZONE ABOUT A GENERALLY HORIZONTAL AXIS, AND THEREBY ELEVATING THE MATERIAL ARCUATELY ABOUT THE PERIPHERY OF THE ZONE, RELEASING THE MATERIAL FOR TRAJECTORIAL FLIGHT AT THE END OF ITS UPWARD ELEVATION, AND UNDER CONDITIONS TO INSURE MAXIMUM IMPACT AGAINST AND GENERALLY NORMAL TO A LOWER PART OF THE ZONE, SUBJECTING THE PARTICLES SO IMPACTED TO FURTHER IMPACTING DIRECTED GENERALLY ARCUATELY ABOUT THE PERIPHERY OF THE ZONE OF REDUCTION, AND CONTINUING THE SEQUENCE OF TRAJECTORIAL FLIGHT, TERMINAL IMPACT, SUBSEQUENT ARCUATE IMPACT, AND ELEVATION, WHILE SUBSTANTIALLY CONTINUOUSLY WITHDRAWING FROM THE ZONE A RANGE OF PARTICLE SIZES FROM SUBSTANTIALLY SMALLER THAN THE MAXIMUM SIZE OF PARTICLES ADMITTED FOR REDUCTION TO THE ZONE TO SUBSTANTIALLY LARGER THAN THE DESIRED END PRODUCT.
Claim 2
Independent Claim
176 words
A METHOD OF CRUSHING AND GRINDING WHICH INCLUDES PROVIDING A GENERALLY CYLINDRICAL REDUCTION ZONE, MAINTAINING THE INTERIOR OF SUCH ZONE SUBSTANTIALLY EMPTY EXCEPT FOR PARTICLES UNDERGOING REDUCTION, DELIVERING MATERIAL FOR REDUCTION TO THE INTERIOR OF SUCH ZONE, WITH THE SIZE OF PARTICLES VARYING FROM FINES TO A PREDETERMINED MAXIMU, IMPARTING ROTARY MOVEMENT TO THE MASS OF MATERIAL WITHIN THE ZONE ABOUT A GENERALLY HORIZONTAL AXIS, AND THEREBY ELEVATING THE MATERIAL ARCUATELY ABOUT THE PERIPHERY OF THE ZONE, RELEASING THE MATERIAL FOR TRAJECTORIAL FLIGHT AT THE END OF ITS UPWARD ELEVATION, AND UNDER CONDITIONS TO INSURE MAXIMUM IMPACT AGAINST AND GENERALLY NORMAL TO A LOWER PART OF THE ZONE, SUBJECTING THE PARTICLES SO IMPACTED TO FURTHER IMPACTING DIRECTED GENERALLY ARCUATELY ABOUT THE PERIPHERY OF THE ZONE OF REDUCTION, AND CONTINUING THE SEQUENCE OF TRAJECTORIAL FLIGHT, TERMINAL IMPACT, SUBSEQUENT ARCUATE IMPACT, AND ELEVATION, WHILE SUBSTANTIALLY CONTINUOUSLY WITHDRAWING FROM THE ZONE A RANGE OF PARTICLE SIZES FROM SUBSTANTIALLY SMALLER THAN THE MAXIMUM SIZE OF PARTICLES ADMITTED FOR REDUCTION TO THE ZONE TO SUBSTANTIALLY LARGER THAN THE DESIRED END PRODUCT.
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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) | 1968-09-13 | 1969-03-15 | 1969-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-13 | 1973-03-15 | 1973-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-13 | 1977-03-15 | 1977-09-14 | $7700.00 | Window Closed / Lapsed |