US2916452A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for preparing lithium base greases involving quenching
Assignee: Texaco Inc
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Filing: 1955-08-01
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Granted: 1959-12-08
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Expires: 1975-08-01
Abstract
No abstract record available.
Inventors
- 👤 Richard C Givens
- 👤 Herbert J Pitman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 10:28
CPC Classifications
C; C10; C10M; C10M5/00; C10M2203/00; C10M2203/10; C10M2203/108; C10M2205/00; C10M2205/14; C10M2205/16; C10M2205/17; C10M2207/00; C10M2207/10; C10M2207/12; C10M2207/125; C10M2207/28; C10M2207/282; C10M2207/287; C10M2207/34; C10M2207/40; C10M2207/404; C10M2215/00; C10M2215/02; C10M2215/06; C10M2215/064; C10M2215/065; C10M2215/067; C10N; C10N2010/00; C10N2010/02; C10N2050/00; C10N2050/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
155 words
THE METHOD OF PREPARING LUBRICATING GREASES WHICH COMPRISES HEATING A MIXTURE OF A LITHIUM SOAP OF A HYDROXY FATTY ACID AND AN OLEGANINOUS LIQUID IN A GREASEFORMING PROPORTION TO A TEMPERATURE ABOVE THE SOLUTION TEMPERATURE OF THE SOAP SO AS TO FORM A MOLTEN HOMOGENEOUS MASS IN A GREASE KETTLE, AND THEN COOLING THE SAID MIXTURE IN A MAINTAINED AGITATED BODY IN THE GREASE KETTLE FROM A TEMPERATURE NEAR THE SOLUTION TEMPERATURE OF THE SOAP TO AT LEAST 25*F. BELOW THE SOLUTION TEMPERATURE OF THE SOAP AT AN AVERAGE RATE OF AT LEAST ABOUT 2*F. BUT BELOW ABOUT 25*F. PER MINUTE BY QUENCHING WITH AN ADDITIONAL OLEAGINOUS LIQUID AT A RATE OF ABOUT 0.001-0.05 GALLON OF OLEAGINOUS LIQUID PER MINUTE PER POUND OF THE SAID MIXTURE AND BY ANY ADDITIONAL COOLING EMPLOYED WHICH IS OBTAINED SUBSTANTIALLY ENTIRELY BY MEANS OF COOLING SURFACES IN CONTACT WITH THE SAID AGITATED BODY OF MIXTURE IN THE GREASE KETTLE.
Claim 2
Independent Claim
155 words
THE METHOD OF PREPARING LUBRICATING GREASES WHICH COMPRISES HEATING A MIXTURE OF A LITHIUM SOAP OF A HYDROXY FATTY ACID AND AN OLEGANINOUS LIQUID IN A GREASEFORMING PROPORTION TO A TEMPERATURE ABOVE THE SOLUTION TEMPERATURE OF THE SOAP SO AS TO FORM A MOLTEN HOMOGENEOUS MASS IN A GREASE KETTLE, AND THEN COOLING THE SAID MIXTURE IN A MAINTAINED AGITATED BODY IN THE GREASE KETTLE FROM A TEMPERATURE NEAR THE SOLUTION TEMPERATURE OF THE SOAP TO AT LEAST 25*F. BELOW THE SOLUTION TEMPERATURE OF THE SOAP AT AN AVERAGE RATE OF AT LEAST ABOUT 2*F. BUT BELOW ABOUT 25*F. PER MINUTE BY QUENCHING WITH AN ADDITIONAL OLEAGINOUS LIQUID AT A RATE OF ABOUT 0.001-0.05 GALLON OF OLEAGINOUS LIQUID PER MINUTE PER POUND OF THE SAID MIXTURE AND BY ANY ADDITIONAL COOLING EMPLOYED WHICH IS OBTAINED SUBSTANTIALLY ENTIRELY BY MEANS OF COOLING SURFACES IN CONTACT WITH THE SAID AGITATED BODY OF MIXTURE IN THE GREASE KETTLE.
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) | 1962-12-07 | 1963-06-08 | 1963-12-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-12-07 | 1967-06-08 | 1967-12-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-12-07 | 1971-06-08 | 1971-12-08 | $7700.00 | Window Closed / Lapsed |