US3401891A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control system for a closed circuit grinding system for finish cement
Assignee: Eaton Corp
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Filing: 1966-10-25
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Granted: 1968-09-17
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Expires: 1986-10-25
Abstract
No abstract record available.
Inventors
- 👤 Philip J Fleeman
- 👤 Brand Willem
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 07:38
CPC Classifications
G; G05; G05B; G05B13/00; G05B13/02; G05B13/0205; G05B13/024; B; B02; B02C; B02C25/00; C; C04; C04B; C04B7/00; C04B7/36; Y; Y02; Y02P; Y02P40/00; Y02P40/10; Y02P40/121; Y10; Y10S; Y10S177/00; Y10S177/09
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
96 words
APPARATUS FOR OPTIMIZING THE OUTPUT PRODUCT FLOW RATE FROM A PARTICULATE PROCESSING SYSTEM OF THE TYPE WHEREIN A CONTROLLABLE CARRYING MEANS CARRIES NEW MATERIAL FROM A SOURCE TO BE MIXED WITH REJECTED MATERIAL AND THEN FED TO A GRINDING MEANS THE OUTPUT FROM WHICH IS FED TO A CONTROLLABLE MEANS FOR SEPARATING SAID GRINDING MEANS OUTPUT INTO ACCEPTED MATERIAL HAVING A PREDETERMINED RANGE OF PARTICLE SIZES AND REJECTED MATERIAL HAVING PARTICLE SIZES OUTSIDE OF SAID ACCEPTED RANGE, SAID APPARATUS COMPRISING: MEANS FOR MEASURING THE HARDNESS, H, OF THE NEW MATERIAL AND ESTABLISHING H SIGNALS REPRESENTATIVE THEREOF;
Claim 2
Dependent Claim
96 words
APPARATUS FOR OPTIMIZING THE OUTPUT PRODUCT FLOW RATE FROM A PARTICULATE PROCESSING SYSTEM OF THE TYPE WHEREIN A CONTROLLABLE CARRYING MEANS CARRIES NEW MATERIAL FROM A SOURCE TO BE MIXED WITH REJECTED MATERIAL AND THEN FED TO A GRINDING MEANS THE OUTPUT FROM WHICH IS FED TO A CONTROLLABLE MEANS FOR SEPARATING SAID GRINDING MEANS OUTPUT INTO ACCEPTED MATERIAL HAVING A PREDETERMINED RANGE OF PARTICLE SIZES AND REJECTED MATERIAL HAVING PARTICLE SIZES OUTSIDE OF SAID ACCEPTED RANGE, SAID APPARATUS COMPRISING: MEANS FOR MEASURING THE HARDNESS, H, OF THE NEW MATERIAL AND ESTABLISHING H SIGNALS REPRESENTATIVE THEREOF;
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-09-17 | 1972-03-18 | 1972-09-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-09-17 | 1976-03-18 | 1976-09-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-09-17 | 1980-03-18 | 1980-09-17 | $7700.00 | Window Closed / Lapsed |