US3302892A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and a device for pulverizing solid materials
Assignee: KOHLSWA JERNVERKS AB
•
Filing: 1964-01-27
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Granted: 1967-02-07
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Expires: 1984-01-27
Abstract
No abstract record available.
Inventors
- 👤 Nilsson Eric Odel Folke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 06:50
CPC Classifications
B; B22; B22F; B22F9/00; B22F9/02; B22F9/04; B02; B02C; B02C19/00; B02C19/06
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
24 words
A METHOD OF PULVERIZING SOLID MATERIALS, COMPRISING, APPLYING MECHANICAL VIBRATIONS ON SAID MATERIAL, AND EJECTING A MERCURIAL, METALLIC LIQUID UNDER PRESSURE AGAINST SAID MATERIAL.
Claim 2
Independent Claim
24 words
A METHOD OF PULVERIZING SOLID MATERIALS, COMPRISING, APPLYING MECHANICAL VIBRATIONS ON SAID MATERIAL, AND EJECTING A MERCURIAL, METALLIC LIQUID UNDER PRESSURE AGAINST SAID MATERIAL.
Claim 3
Independent Claim
57 words
A DEVICE FOR PULVERIZING A ROD OF SOLID MATERIAL, COMPRISING, IN COMBINATION, A HOLDER FOR FEEDING SAID ROD FORWARDS AND PROVIDED WITH AT LEAST ONE OBLIQUELY DIRECTED CONDUIT, MEANS FOR EJECTING A MERCURIAL, METALLIC LIQUID UNDER PRESSURE THROUGH SAID CONDUIT AGAINST SAID ROD AND HELICAL GUIDES IN SAID CONDUIT FOR GIVING SAID LIQUID SIMULTANEOUSLY A HELICAL MOTION.
Claim 4
Independent Claim
57 words
A DEVICE FOR PULVERIZING A ROD OF SOLID MATERIAL, COMPRISING, IN COMBINATION, A HOLDER FOR FEEDING SAID ROD FORWARDS AND PROVIDED WITH AT LEAST ONE OBLIQUELY DIRECTED CONDUIT, MEANS FOR EJECTING A MERCURIAL, METALLIC LIQUID UNDER PRESSURE THROUGH SAID CONDUIT AGAINST SAID ROD AND HELICAL GUIDES IN SAID CONDUIT FOR GIVING SAID LIQUID SIMULTANEOUSLY A HELICAL MOTION.
References Cited (Backward Citations)
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Cited
US2967351A
Cited
US2997245A
Cited
US2980345A
Cited
US3041672A
Cited
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Cited
US3102805A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-02-06 | 1970-08-08 | 1971-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-06 | 1974-08-08 | 1975-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-06 | 1978-08-08 | 1979-02-07 | $7700.00 | Window Closed / Lapsed |