Patent US3117932A successfully refreshed from Google Patents.
US3117932A
Expired / Lapsed
US
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Lubricants for high-load mechanisms
Assignee: Renault SA
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Filing: 1959-10-27
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Granted: 1964-01-14
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Expires: 1979-10-27
Abstract
No abstract record available.
Inventors
- 👤 Peras Lucien
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 06:49
CPC Classifications
C; C10; C10M; C10M1/00; C10M1/08; C10M2207/00; C10M2207/10; C10M2207/12; C10M2207/125; C10M2207/129; C10M2207/28; C10M2207/281; C10M2207/282; C10M2207/283; C10M2207/286; C10M2211/00; C10M2211/04; C10M2211/044; C10M2211/06; C10N; C10N2040/00; C10N2040/04; C10N2040/042; C10N2040/044; C10N2040/046; C10N2040/10; C10N2040/25; C10N2040/251; C10N2040/255; C10N2040/28
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
118 words
A LUBRICANT EFFECTIVE TO MAINTAIN BETWEEN TWO SLIDING SURFACES THE NECESSARY LUBRICATING FILM UNDER PRESSURE AND TEMPERATURE CONDITIONS WHEREIN THE MAINTAINANCE OF THIS FILM IS NOT ENSURED BY HYDRODYNAMIC FORCES, AND EFFECTIVE TO PROVIDE RESISTANCE TO SEIZURE UNDER VERY HIGH PRESSURES AND VERY HIGH CORROSION-RESISTING PROPERITES WITH RESPECT TO METAL, SAID LUBRICANT COMPRISING A MAJOR PROPORTION OF MINERAL OIL, 0.2 TO 3% BY WEIGHT OF AT LEAST ONE COMPOUND SELECTED FROM THE GROUP CONSISTING OF THE METHYL AND ETHYL ESTERS OF PENTACHLOROBUTYRIC ACID OF THE FORMULA CL3C-CHCL-CHCL-COOH, AND 0.05 TO 2% BY WEIGHT OF AT LEAST ONE LONG-CHAIN FTTY COMPOUND SELECTED FROM THE GROUP CONSITING OF LONG-CHAING FATTY ACIDS AND THE METHYL, ETHYL, PROPYL AND ISOPROPYL ESTERS THEREOF.
Claim 2
Dependent Claim
118 words
A LUBRICANT EFFECTIVE TO MAINTAIN BETWEEN TWO SLIDING SURFACES THE NECESSARY LUBRICATING FILM UNDER PRESSURE AND TEMPERATURE CONDITIONS WHEREIN THE MAINTAINANCE OF THIS FILM IS NOT ENSURED BY HYDRODYNAMIC FORCES, AND EFFECTIVE TO PROVIDE RESISTANCE TO SEIZURE UNDER VERY HIGH PRESSURES AND VERY HIGH CORROSION-RESISTING PROPERITES WITH RESPECT TO METAL, SAID LUBRICANT COMPRISING A MAJOR PROPORTION OF MINERAL OIL, 0.2 TO 3% BY WEIGHT OF AT LEAST ONE COMPOUND SELECTED FROM THE GROUP CONSISTING OF THE METHYL AND ETHYL ESTERS OF PENTACHLOROBUTYRIC ACID OF THE FORMULA CL3C-CHCL-CHCL-COOH, AND 0.05 TO 2% BY WEIGHT OF AT LEAST ONE LONG-CHAIN FTTY COMPOUND SELECTED FROM THE GROUP CONSITING OF LONG-CHAING FATTY ACIDS AND THE METHYL, ETHYL, PROPYL AND ISOPROPYL ESTERS THEREOF.
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) | 1967-01-13 | 1967-07-15 | 1968-01-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-01-13 | 1971-07-15 | 1972-01-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-01-13 | 1975-07-15 | 1976-01-14 | $7700.00 | Window Closed / Lapsed |