US2693448A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Demulsified antirust turbine oil
Assignee: ExxonMobil Oil Corp
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Filing: 1952-12-30
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Granted: 1954-11-02
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Expires: 1972-12-30
Abstract
No abstract record available.
Inventors
- 👤 Phillip S Landis
- 👤 Henry D Norris
- 👤 Ralph V White
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 01:34
CPC Classifications
C; C10; C10M; C10M1/00; C10M1/08; C10M2207/00; C10M2207/02; C10M2207/023; C10M2207/026; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/06; C10M2215/064; C10M2215/065; C10M2215/24; C10M2215/26; C10M2217/00; C10M2217/04; C10M2217/046; C10M2217/06; C10M2219/00; C10M2219/04; C10M2219/044; C10N; C10N2010/00; C10N2010/04; C10N2010/06; C10N2040/00; C10N2040/135
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
198 words
A SOLVENT-REFINED TURBINE OIL HAVING A VISCOSITY OF BETWEEN ABOUT 350 SECONDS AND ABOUT 600 SECONDS SAYBOLT AT 100* F. CONTAINING (U) BETWEEN ABOUT 0.05 AND ABOUT 2 PER CENT, BY WEIGHT, OF A PHENOLIC ANTIOXIDANT; (2) BETWEEN ABOUT 0.01 PER CENT AND ABOUT 10 PER CENT, BY WEIGHT, OF AN ANTIRUST AGENT WHICH IS THE REACTION PRODUCT OBTAINED BY REACTING OLEIC ACID WITH TRIETHYLENETETRAMINE, IN A MOLAR PROPORTION OF BETWEEN ABOUT 3:1, RESPECTIVELY, AND ABOUT 1:1 RESPECTIVELY TO PRODUCE AN INTERMEDIATE PRODUCT AND REACTING AN ALKENYL SUCCINIC ACID ANHYDRIDE WITH SAID INTERMEDIATE PRODUCE, IN A MOLAR PROPORTION OF BETWEEN ABOUT 1:1, RESPECTIVELY, AND ABOUT 3:1, RESPECTIVELY, THE NUMBER OF MOLES OF SAID OLEIC ACID AND OF SAID ALKENYL SUCCINIC ACID ANHYDRIDE REACTED WITH EACH MOLE OF SAID TRIETHYLENETETRAMINE BEING NO GREATER THAN 4; AND (3) BETWEEN ABOUT 5 PER CENT AND ABOUT 25 PER CENT, BY WEIGHT, BASED UPON THE WEIGHT CONCENTRATION OF SAID ANTIRUST AGENT, OF A DEMULSIFIER SELECTED FROM THE GROUP CONSISTING OF PETROLEUM SULFONIC ACIDS, AMMONIUM SALTS OF PETROLEUM SULFONIC ACIDS AND METAL SALTS OF PETROLEUM SULFONIC ACIDS WHERIN THE METAL THEREOF IS SELECTED FROM GROUPS I, II, AND III OF THE PERIODIC TABLE.
Claim 2
Dependent Claim
198 words
A SOLVENT-REFINED TURBINE OIL HAVING A VISCOSITY OF BETWEEN ABOUT 350 SECONDS AND ABOUT 600 SECONDS SAYBOLT AT 100* F. CONTAINING (U) BETWEEN ABOUT 0.05 AND ABOUT 2 PER CENT, BY WEIGHT, OF A PHENOLIC ANTIOXIDANT; (2) BETWEEN ABOUT 0.01 PER CENT AND ABOUT 10 PER CENT, BY WEIGHT, OF AN ANTIRUST AGENT WHICH IS THE REACTION PRODUCT OBTAINED BY REACTING OLEIC ACID WITH TRIETHYLENETETRAMINE, IN A MOLAR PROPORTION OF BETWEEN ABOUT 3:1, RESPECTIVELY, AND ABOUT 1:1 RESPECTIVELY TO PRODUCE AN INTERMEDIATE PRODUCT AND REACTING AN ALKENYL SUCCINIC ACID ANHYDRIDE WITH SAID INTERMEDIATE PRODUCE, IN A MOLAR PROPORTION OF BETWEEN ABOUT 1:1, RESPECTIVELY, AND ABOUT 3:1, RESPECTIVELY, THE NUMBER OF MOLES OF SAID OLEIC ACID AND OF SAID ALKENYL SUCCINIC ACID ANHYDRIDE REACTED WITH EACH MOLE OF SAID TRIETHYLENETETRAMINE BEING NO GREATER THAN 4; AND (3) BETWEEN ABOUT 5 PER CENT AND ABOUT 25 PER CENT, BY WEIGHT, BASED UPON THE WEIGHT CONCENTRATION OF SAID ANTIRUST AGENT, OF A DEMULSIFIER SELECTED FROM THE GROUP CONSISTING OF PETROLEUM SULFONIC ACIDS, AMMONIUM SALTS OF PETROLEUM SULFONIC ACIDS AND METAL SALTS OF PETROLEUM SULFONIC ACIDS WHERIN THE METAL THEREOF IS SELECTED FROM GROUPS I, II, AND III OF THE PERIODIC TABLE.
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) | 1957-11-01 | 1958-05-03 | 1958-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-11-01 | 1962-05-03 | 1962-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-11-01 | 1966-05-03 | 1966-11-02 | $7700.00 | Window Closed / Lapsed |