US3351293A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Grinding mill and method of operation
Assignee: Jeep Corp
•
Filing: 1965-08-23
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Granted: 1967-11-07
•
Expires: 1985-08-23
Abstract
No abstract record available.
Inventors
- 👤 George M Meisel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 12:11
CPC Classifications
B; B02; B02C; B02C25/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
101 words
AN OPEN CIRCUIT DEVICE FOR GRINDING SOLIDS WHICH COMPRISES: (A) A MILL FOR GRINDING SOLIDS, (B) MEANS FOR FEEDING SOLIDS TO THE MILL AT A VARIABLE RATE, (C) A CLASSIFIER FOR SEPARATING A STREAM OF SOLIDS ENTRAINED IN A FLUID INTO A STREAM OF LARGER PARTICLES AND STREAM OF SMALLER PARTICLES, (D) MEANS FOR PASSING A PILOT STREAM OF GROUND SOLIDS ENTRAINED IN A FLUID STREAM FROM THE MILL TO THE CLASSIFIER, (E) MEANS FOR MEASURING THE SOLIDS CONTENT AND FLOW RATE OF AT LEAST TWO OF THE PILOT STREAM, THE STREAM OF LARGER PARTICLES AND THE STREAM OF SMALLER PARTICLES,
Claim 2
Dependent Claim
101 words
AN OPEN CIRCUIT DEVICE FOR GRINDING SOLIDS WHICH COMPRISES: (A) A MILL FOR GRINDING SOLIDS, (B) MEANS FOR FEEDING SOLIDS TO THE MILL AT A VARIABLE RATE, (C) A CLASSIFIER FOR SEPARATING A STREAM OF SOLIDS ENTRAINED IN A FLUID INTO A STREAM OF LARGER PARTICLES AND STREAM OF SMALLER PARTICLES, (D) MEANS FOR PASSING A PILOT STREAM OF GROUND SOLIDS ENTRAINED IN A FLUID STREAM FROM THE MILL TO THE CLASSIFIER, (E) MEANS FOR MEASURING THE SOLIDS CONTENT AND FLOW RATE OF AT LEAST TWO OF THE PILOT STREAM, THE STREAM OF LARGER PARTICLES AND THE STREAM OF SMALLER PARTICLES,
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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) | 1970-11-06 | 1971-05-08 | 1971-11-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-06 | 1975-05-08 | 1975-11-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-06 | 1979-05-08 | 1979-11-07 | $7700.00 | Window Closed / Lapsed |