US3001940A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and composition for lubricating under wet conditions
Assignee: Texaco Inc
•
Filing: 1958-01-21
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Granted: 1961-09-26
•
Expires: 1978-01-21
Abstract
No abstract record available.
Inventors
- 👤 Harold J Watson
- 👤 Raymond B Tierney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:53
CPC Classifications
C; C10; C10M; C10M1/00; C10M1/08; C10M2203/00; C10M2203/10; C10M2203/102; C10M2203/104; C10M2203/106; C10M2203/108; C10M2205/00; C10M2205/22; C10M2207/00; C10M2207/02; C10M2207/023; C10M2207/026; C10M2207/10; C10M2207/12; C10M2207/121; C10M2207/123; C10M2207/129; C10M2207/22; C10M2209/00; C10M2209/02; C10M2209/10; C10M2209/101; C10M2211/00; C10M2211/08; C10M2215/00; C10M2215/02; C10M2215/06; C10M2215/064; C10M2219/00; C10M2219/02; C10M2219/022; C10M2219/024; C10M2219/04; C10M2219/044; C10M2219/06; C10M2219/062; C10M2219/066; C10M2219/068; C10M2219/10; C10M2219/102; C10M2219/104; C10M2219/106; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/042; C10M2223/045; C10M2223/12; C10M2225/00; C10M2225/04; C10M2229/00; C10M2229/04; C10M2229/041; C10N; C10N2010/00; C10N2010/04; C10N2040/00; C10N2040/30; C10N2040/32; C10N2040/34; C10N2040/36; C10N2040/38; C10N2040/40; C10N2040/42; C10N2040/44; C10N2040/50
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
106 words
A METHOD OF LUBRICATING A MACHINE WHEREIN THE LUBRICANT IS EXPOSED TO WATER CONTAMINATION WHICH COMPRISES CIRCULATING AN OIL COMPOSITION THROUGH THE BEARINGS AND GEARS OF SAID MACHINE CONSISTING ESSENTIALLY OF A MINERAL LUBRICATING BASE OIL, A DETERGENT AMOUNT OF A COMPOUND SELECTED FROM THE GROUP CONSISTING OF ALKALINE EARTH METAL, MAGNESIUM, ZINC, AND AMINE SALTS OF DINONYLNAPHTHALENE SULFONIC ACID WHEREIN THE NONYL GROUPS ARE HIGHLY BRANCHED, AND AN ANTIOXIDANT COMPOUND IN AN AMOUNT SUFFICIENT TO INHIBIT MINERAL OIL OXIDATION, PERIODICALLY REMOVING THAT PORTION OF WATER WHICH READILY SEPARATES FROM THE OIL COMPOSITION, AND THEN RECIRCULATING SAID COMPOSITION THROUGH THE BEARINGS AND GEARS OF SAID MACHINE.
Claim 2
Independent Claim
106 words
A METHOD OF LUBRICATING A MACHINE WHEREIN THE LUBRICANT IS EXPOSED TO WATER CONTAMINATION WHICH COMPRISES CIRCULATING AN OIL COMPOSITION THROUGH THE BEARINGS AND GEARS OF SAID MACHINE CONSISTING ESSENTIALLY OF A MINERAL LUBRICATING BASE OIL, A DETERGENT AMOUNT OF A COMPOUND SELECTED FROM THE GROUP CONSISTING OF ALKALINE EARTH METAL, MAGNESIUM, ZINC, AND AMINE SALTS OF DINONYLNAPHTHALENE SULFONIC ACID WHEREIN THE NONYL GROUPS ARE HIGHLY BRANCHED, AND AN ANTIOXIDANT COMPOUND IN AN AMOUNT SUFFICIENT TO INHIBIT MINERAL OIL OXIDATION, PERIODICALLY REMOVING THAT PORTION OF WATER WHICH READILY SEPARATES FROM THE OIL COMPOSITION, AND THEN RECIRCULATING SAID COMPOSITION THROUGH THE BEARINGS AND GEARS OF SAID MACHINE.
Claim 3
Dependent Claim
82 words
A CIRCULATING OIL COMPOSITION FOR LUBRICATING MACHINERY UNDER WET CONDITIONS WHICH COMPRISES A MINERAL BASE OIL HAVING AN SUS VISCOSITY AT 100*F. OF FROM 50 TO 2500, BARIUM DINONYLNAPHTHALENE SULFONATE WHEREIN THE NONYL GROUPS ARE HIGHLY BRANCHED, IN AN AMOUNT RANGING FROM 0.1 TO 4 PERCENT BY WEIGHT OF THE COMPOSITION, AND AN OIL-SOLUBLE ZINC DIALKYL DITHIOPHOSPHATE WHEREIN THE ALKYL GROUPS CONTAIN FROM 3 TO 12 CARBON ATOMS IN AN AMOUNT RANGING FROM 0.1 TO 3.0 WEIGHT PERCENT BASED ON THE COMPOSITION.
Claim 4
Dependent Claim
82 words
A CIRCULATING OIL COMPOSITION FOR LUBRICATING MACHINERY UNDER WET CONDITIONS WHICH COMPRISES A MINERAL BASE OIL HAVING AN SUS VISCOSITY AT 100*F. OF FROM 50 TO 2500, BARIUM DINONYLNAPHTHALENE SULFONATE WHEREIN THE NONYL GROUPS ARE HIGHLY BRANCHED, IN AN AMOUNT RANGING FROM 0.1 TO 4 PERCENT BY WEIGHT OF THE COMPOSITION, AND AN OIL-SOLUBLE ZINC DIALKYL DITHIOPHOSPHATE WHEREIN THE ALKYL GROUPS CONTAIN FROM 3 TO 12 CARBON ATOMS IN AN AMOUNT RANGING FROM 0.1 TO 3.0 WEIGHT PERCENT BASED ON THE COMPOSITION.
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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) | 1964-09-25 | 1965-03-27 | 1965-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-09-25 | 1969-03-27 | 1969-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-09-25 | 1973-03-27 | 1973-09-26 | $7700.00 | Window Closed / Lapsed |