US3061485A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Residual lubricant removal from aluminum foil
Assignee: Reynolds Metals Co
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Filing: 1960-12-12
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Granted: 1962-10-30
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Expires: 1980-12-12
Abstract
No abstract record available.
Inventors
- 👤 Jr Grover C Robinson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:19
CPC Classifications
C; C23; C23G; C23G5/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
84 words
METHOD FOR THE TREATMENT OF ALUMINUM FOIL IN COIL FORM IN THE AS-ROLLED CONDITION TO REMOVE RESIDUAL COATINGING OF LUBRICANT FROM THE SURFACES THEREOF, WHICH COMPRISES ANNEALING SAID FOIL AT A TEMPERATURE UP TO ABOUT 850* F. WHILE EXPOSING THE ENDS OF THE COIL TO CIRCULATION OF A STREAM OF GAS CONTAINING A SUBSTANTIAL AMOUNT OF FREE OXYGEN AND SUFFICIENT TO OXIDIZE AND REMOVE SAID LUBRICANT, THEREBY OXIDIZING AND REMOVING SUBSTANTIALLY ALL TRACES OF THE LUBRICANT, INCLUDING FRACTIONS THEREOF WHICH ARE NOT NECESSARILY VOLATILIZED.
Claim 2
Dependent Claim
84 words
METHOD FOR THE TREATMENT OF ALUMINUM FOIL IN COIL FORM IN THE AS-ROLLED CONDITION TO REMOVE RESIDUAL COATINGING OF LUBRICANT FROM THE SURFACES THEREOF, WHICH COMPRISES ANNEALING SAID FOIL AT A TEMPERATURE UP TO ABOUT 850* F. WHILE EXPOSING THE ENDS OF THE COIL TO CIRCULATION OF A STREAM OF GAS CONTAINING A SUBSTANTIAL AMOUNT OF FREE OXYGEN AND SUFFICIENT TO OXIDIZE AND REMOVE SAID LUBRICANT, THEREBY OXIDIZING AND REMOVING SUBSTANTIALLY ALL TRACES OF THE LUBRICANT, INCLUDING FRACTIONS THEREOF WHICH ARE NOT NECESSARILY VOLATILIZED.
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) | 1965-10-29 | 1966-04-30 | 1966-10-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-10-29 | 1970-04-30 | 1970-10-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-10-29 | 1974-04-30 | 1974-10-30 | $7700.00 | Window Closed / Lapsed |