US3262880A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Processing carbonate dispersions in oils
Assignee: Bray Oil Co
•
Filing: 1963-09-23
•
Granted: 1966-07-26
•
Expires: 1983-09-23
Abstract
No abstract record available.
Inventors
- 👤 Voorhees Vanderveer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 10:30
CPC Classifications
C; C10; C10M; C10M159/00; C10M159/12; C10M159/20; C10M159/24; C10M2201/00; C10M2201/06; C10M2201/062; C10M2201/063; C10M2219/00; C10M2219/04; C10M2219/044; C10N; C10N2010/00; C10N2010/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
145 words
THE PROCESS OF MAKING A TRANSPARENT, COLLOIDAL DISPERSION OF CARBONATE OF GROUP II METALS IN LUBRICATING OIL FOR USE IN LUBRICATION OF INTERNAL COMBUSTION ENGINES WHICH COMPRISES PREPARING A MIXTURE OF AN OIL SOLUBLE SULFONATE, A LUBRICATING OIL, A VOLATILE HYDROCARBON, SOLVENT ANHYDROUS METHANOL AND A METHANOL COMPLEX OF A GROUP II METAL, CARBONATING THE REACTION MIXTURE BY INJECTING CARBON DIOXIDE WITH RAPID AGITATION UNTIL IT IS SUBSTANTIALLY NO LONGER ABSORBED, DISTILLING OFF THE ANYDROUS FREE METHANOL, DECOMPOSING REMAINING METHANOL COMPLEX BY STEAMING AT ABOUT 220 TO 280*F., ADDING FROM 3 TO 20 PERCENT OF WATER, BASED ON THE VOLUME OF LUCRICATING OIL AND SULFONATE, WHILE THOROGUHTLY AGITATING THE MIXTUE FOR A PERIOD OF TIME OF 1 TO 20 MINUTES AT A TEMPERATURE OF ABOUT 160* TO 200*F., THEN DEHYDRATING THE OIL BY DISTILLING OFF THE FREE WATER ALONG WITH HYDROCARBON SOLVENT AND LIBERATED METHANOL.
Claim 2
Dependent Claim
145 words
THE PROCESS OF MAKING A TRANSPARENT, COLLOIDAL DISPERSION OF CARBONATE OF GROUP II METALS IN LUBRICATING OIL FOR USE IN LUBRICATION OF INTERNAL COMBUSTION ENGINES WHICH COMPRISES PREPARING A MIXTURE OF AN OIL SOLUBLE SULFONATE, A LUBRICATING OIL, A VOLATILE HYDROCARBON, SOLVENT ANHYDROUS METHANOL AND A METHANOL COMPLEX OF A GROUP II METAL, CARBONATING THE REACTION MIXTURE BY INJECTING CARBON DIOXIDE WITH RAPID AGITATION UNTIL IT IS SUBSTANTIALLY NO LONGER ABSORBED, DISTILLING OFF THE ANYDROUS FREE METHANOL, DECOMPOSING REMAINING METHANOL COMPLEX BY STEAMING AT ABOUT 220 TO 280*F., ADDING FROM 3 TO 20 PERCENT OF WATER, BASED ON THE VOLUME OF LUCRICATING OIL AND SULFONATE, WHILE THOROGUHTLY AGITATING THE MIXTUE FOR A PERIOD OF TIME OF 1 TO 20 MINUTES AT A TEMPERATURE OF ABOUT 160* TO 200*F., THEN DEHYDRATING THE OIL BY DISTILLING OFF THE FREE WATER ALONG WITH HYDROCARBON SOLVENT AND LIBERATED METHANOL.
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) | 1969-07-25 | 1970-01-24 | 1970-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-25 | 1974-01-24 | 1974-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-25 | 1978-01-24 | 1978-07-26 | $7700.00 | Window Closed / Lapsed |