US3159580A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fire-resistant hydraulic fluids
Assignee: ExxonMobil Oil Corp
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Filing: 1961-06-12
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Granted: 1964-12-01
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Expires: 1981-06-12
Abstract
No abstract record available.
Inventors
- 👤 Irving P Hammer
- 👤 Rudolph J Holzinger
- 👤 Liddy Clarence
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 05:45
CPC Classifications
C; C10; C10M; C10M173/00; C10M2201/00; C10M2201/02; C10M2207/00; C10M2207/02; C10M2207/023; C10M2207/10; C10M2207/12; C10M2207/121; C10M2207/122; C10M2215/00; C10M2215/02; C10M2215/06; C10M2215/062; C10M2215/064; C10M2219/00; C10M2219/04; C10M2219/046; C10N; C10N2040/00; C10N2040/08; C10N2040/20; C10N2050/00; C10N2050/01
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
121 words
A COMPOSITION FOR USE AS HYDRAULIC FLUID CONSISTING ESSENTIALLY OF A WATER-IN-OIL EMULSION, THE WATER CONTENT OF SAID EMULSION, BEING ABOUT 10-50 PERCENT BY WEIGHT, THE OIL HAVING A VISCOSITY OF ABOUT 100-400 SAYBOLT UNIVERSAL SECONDS AT 100*F. AND A VISCOSITY INDEX OF AT LEAST 80, ABOUT .25-6.00 PERCENT BY WEIGHT OF OIL-SOLUBLE CALCIUM PETROLEUM SULPHONATE HAVING A MOLECULAR WEIGHT OF AT LEAST 975, THE CALCIUM PETROLEUM SULPHONATE HAVING A MINIMUM ALKALINITY EQUIVALENT TO ABOUT 20-25 MG. OF POTASSIUM HYDROXIDE PER GRAM OF SULPHONATE AS SUPPLIED, AND ABOUT 0.01 TO 1.0 PERCENT BY WEIGHT OF A POTASSIUM SALT OF A SATURATED STRAIGHT-CHAIN FATTY ACID HAVING A CARBON CHAIN LENGTH OF C2-C4, WHEREBY A STABLE EMULSON IS PROVIDED WHICH EFFECTS MINIMUM WEAR.
Claim 2
Dependent Claim
121 words
A COMPOSITION FOR USE AS HYDRAULIC FLUID CONSISTING ESSENTIALLY OF A WATER-IN-OIL EMULSION, THE WATER CONTENT OF SAID EMULSION, BEING ABOUT 10-50 PERCENT BY WEIGHT, THE OIL HAVING A VISCOSITY OF ABOUT 100-400 SAYBOLT UNIVERSAL SECONDS AT 100*F. AND A VISCOSITY INDEX OF AT LEAST 80, ABOUT .25-6.00 PERCENT BY WEIGHT OF OIL-SOLUBLE CALCIUM PETROLEUM SULPHONATE HAVING A MOLECULAR WEIGHT OF AT LEAST 975, THE CALCIUM PETROLEUM SULPHONATE HAVING A MINIMUM ALKALINITY EQUIVALENT TO ABOUT 20-25 MG. OF POTASSIUM HYDROXIDE PER GRAM OF SULPHONATE AS SUPPLIED, AND ABOUT 0.01 TO 1.0 PERCENT BY WEIGHT OF A POTASSIUM SALT OF A SATURATED STRAIGHT-CHAIN FATTY ACID HAVING A CARBON CHAIN LENGTH OF C2-C4, WHEREBY A STABLE EMULSON IS PROVIDED WHICH EFFECTS MINIMUM WEAR.
Claim 3
Dependent Claim
149 words
A COMPOSITION FOR USE AS HYDRAULIC FLUID CONSISTING ESSENTIALLY OF A WATER-IN-OIL EMULSION, THE WATER CONTENT OF SAID EMULSION BEING ABOUT 10-50 PERCENT BY WEIGHT, THE OIL HAVING A VISCOSITY OF ABOUT 100-400 SAYBOLT UNIVERSAL SECONDS AT 100*F. AND A VISCOSITY INDEX OF AT LEAST 80, ABOUT 0.25-6.00 PERCENT BY WEIGHT OF OIL-SOLUBLE CALCIUM PETROLEUM SULPHONATE HAVING A MOLECULAR WEIGHT OF AT LEAST 975, THE CALCIUM PETROLEUM SULPHONATE HAVING A MINIMUM ALKALINITY EQUIVALENT TO ABOUT 20-25 MG. OF POTASSIUM HYDROXIDE PER GRAM OF SULPHONATE AS SUPPLIED, ABOUT 0.01 TO 1.0 PERCENT BY WEIGHT OF A POTASSIUM SALT OF A SATURATED STRAIGHT-CHAIN FATTY ACID HAVING A CARBON CHAIN LENGTH OF C2-C4, AND ABOUT 0.02-1.49 BY WEIGHT OF POTASSIUM STEARATE, THE RATIO OF THE POTASSIUM SALT OF THE C2-C4 SATURATED STRAIGHT-CHAIN FATTY ACID TO POTASSIUM STEARATE BEING FROM 5:95 TO 95:5, WHEREBY A STABLE EMULSION IS PROVIDED WHICH EFFECTS MINIMUM WEAR.
Claim 4
Dependent Claim
149 words
A COMPOSITION FOR USE AS HYDRAULIC FLUID CONSISTING ESSENTIALLY OF A WATER-IN-OIL EMULSION, THE WATER CONTENT OF SAID EMULSION BEING ABOUT 10-50 PERCENT BY WEIGHT, THE OIL HAVING A VISCOSITY OF ABOUT 100-400 SAYBOLT UNIVERSAL SECONDS AT 100*F. AND A VISCOSITY INDEX OF AT LEAST 80, ABOUT 0.25-6.00 PERCENT BY WEIGHT OF OIL-SOLUBLE CALCIUM PETROLEUM SULPHONATE HAVING A MOLECULAR WEIGHT OF AT LEAST 975, THE CALCIUM PETROLEUM SULPHONATE HAVING A MINIMUM ALKALINITY EQUIVALENT TO ABOUT 20-25 MG. OF POTASSIUM HYDROXIDE PER GRAM OF SULPHONATE AS SUPPLIED, ABOUT 0.01 TO 1.0 PERCENT BY WEIGHT OF A POTASSIUM SALT OF A SATURATED STRAIGHT-CHAIN FATTY ACID HAVING A CARBON CHAIN LENGTH OF C2-C4, AND ABOUT 0.02-1.49 BY WEIGHT OF POTASSIUM STEARATE, THE RATIO OF THE POTASSIUM SALT OF THE C2-C4 SATURATED STRAIGHT-CHAIN FATTY ACID TO POTASSIUM STEARATE BEING FROM 5:95 TO 95:5, WHEREBY A STABLE EMULSION IS PROVIDED WHICH EFFECTS MINIMUM WEAR.
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) | 1967-12-01 | 1968-06-01 | 1968-12-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-12-01 | 1972-06-01 | 1972-12-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-12-01 | 1976-06-01 | 1976-12-01 | $7700.00 | Window Closed / Lapsed |