US3265212A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the purification of rolling mill oil
Assignee: Pennwalt Corp
•
Filing: 1963-05-09
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Granted: 1966-08-09
•
Expires: 1983-05-09
Abstract
No abstract record available.
Inventors
- 👤 Jr Rodney T Bonsall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:55
CPC Classifications
C; C10; C10M; C10M175/00; C10M175/04; B; B21; B21B; B21B45/00; B21B45/02; B21B45/0269; B21B45/029; B21B45/0296; C10G; C10G31/00; C10G31/10; Y; Y02; Y02P; Y02P70/00; Y02P70/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
97 words
IN A ROLLING MILL OPERATION A PROCESS INCLUDING THE STEPS OF COLLECTING COOLANT WATER AND ROLLING OIL TOGETHER WITH LESSER QUANTITIES OF TRAMP OIL, STRATIFYING THE COLLECTION SUBSTANTIALLY ACCORDING TO THE DENSITY OF THE COMPONENTS, WITHDRAWING A HEAVIER PORTION OF THE STRATIFIED COLLECTION AND SUBJECTING IT TO A LOCUS OF CENTRIFUGAL FORCE, DISCHARGING FROM ADJACENT THE AXIS OF THE LOCUS AN OILCONTAINING PORTION AND FROM AN OUTER REGION OF THE LOCUS A COOLANT WATER DISCHARGE FOR THE PROCESS, WITHDRAWING A LIGHTER PORTION OF THE STRATIFIED COLLECTION, COMBINING IT WITH THE OIL-CONTAINING PORTION AND SUBJECTING IT TO A
Claim 2
Dependent Claim
97 words
IN A ROLLING MILL OPERATION A PROCESS INCLUDING THE STEPS OF COLLECTING COOLANT WATER AND ROLLING OIL TOGETHER WITH LESSER QUANTITIES OF TRAMP OIL, STRATIFYING THE COLLECTION SUBSTANTIALLY ACCORDING TO THE DENSITY OF THE COMPONENTS, WITHDRAWING A HEAVIER PORTION OF THE STRATIFIED COLLECTION AND SUBJECTING IT TO A LOCUS OF CENTRIFUGAL FORCE, DISCHARGING FROM ADJACENT THE AXIS OF THE LOCUS AN OILCONTAINING PORTION AND FROM AN OUTER REGION OF THE LOCUS A COOLANT WATER DISCHARGE FOR THE PROCESS, WITHDRAWING A LIGHTER PORTION OF THE STRATIFIED COLLECTION, COMBINING IT WITH THE OIL-CONTAINING PORTION AND SUBJECTING IT TO A
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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) | 1969-08-08 | 1970-02-07 | 1970-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-08 | 1974-02-07 | 1974-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-08 | 1978-02-07 | 1978-08-09 | $7700.00 | Window Closed / Lapsed |