US3242083A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of grease manufacture
Assignee: Texaco Inc
•
Filing: 1963-05-22
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Granted: 1966-03-22
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Expires: 1983-05-22
Abstract
No abstract record available.
Inventors
- 👤 Fred T Crookshank
- 👤 Gordon S Bright
- 👤 Jr William B Green
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 09:21
CPC Classifications
C; C10; C10M; C10M5/00; C10M2205/00; C10M2205/17; C10M2205/173; C10M2207/00; C10M2207/10; C10M2207/12; C10M2207/125; C10M2207/28; C10M2207/282; C10M2207/34; C10M2215/00; C10M2215/02; C10M2215/06; C10M2215/064; C10M2215/065; C10M2215/067; C10M2219/00; C10M2219/02; C10M2219/024; C10N; C10N2010/00; C10N2010/04; C10N2040/00; C10N2040/02; C10N2050/00; C10N2050/10; C10N2070/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
209 words
IN A PROCESS FOR PREPARING A CALCIUM HYDROXY FATTY ACID SOAP THICKENED GREASE COMPRISING THE STEPS OF SAPONIFYING A FATTY ACID SAPONIFIABLE MATERIAL COMPRISING AT LEAST ABOUT 35 PERCENT BY WEIGHT OF HYDROXY FATTY ACID MATERIAL WITH A CALCIUM BASE IN THE PRESENCE OF AT LEAST A PORTION OF THE LUBRICATING OIL EMPLOYED IN THE GREASE, HEATING THE GREASE MIXTURE THUS OBTAINED TO A TOP TEMPERATURE IN THE RANGE FROM ABOUT 250*F. TO 275*F., SAID TOP TEMPERATURE BEING JUST BELOW THE MELTING POINT OF THE SAID SOAP AND THEREAFTER COOLING THE GREASE MIXTURE WITH THE ADDITION OF ADDITIONAL LUBRICATING OIL AT A LOWER TEMPERATURE THAN THE GREASE MIXTURE, THE IMPROVEMENT WHICH COMPRISES SHEARING THE GREASE MIXTURE DURING THE SAID HEATING STEP BY RECIRCULATING THE SAID GREASE MIXTURE FROM A MAINTAINED BODY THEREOF THROUGH A SHEAR VALVE OPERATED WITH A PRESSURE DROP OF ABOUT 20-200 POUNDS PER SQUARE INCH AT A RATE SUCH THAT THE WEIGHT OF RECIRCULATED GREASE MIXTURE EQUALS THE TOTAL AVERAGE WEIGHT OF GREASE MIXTURE DURING THE SAID HEATING STEP IN FROM ABOUT 0.25 TO ABOUT 15 MINUTES, FOR A MINIMUM PERIOD OF ABOUT 15 MINUTES AND UNTIL THE WEIGHT OF RECIRCULATED GREASE MIXTURE IS EQUAL TO AT LEAST 5 TIMES THE TOTAL WEIGHT OF GREASE MIXTURE.
Claim 2
Dependent Claim
209 words
IN A PROCESS FOR PREPARING A CALCIUM HYDROXY FATTY ACID SOAP THICKENED GREASE COMPRISING THE STEPS OF SAPONIFYING A FATTY ACID SAPONIFIABLE MATERIAL COMPRISING AT LEAST ABOUT 35 PERCENT BY WEIGHT OF HYDROXY FATTY ACID MATERIAL WITH A CALCIUM BASE IN THE PRESENCE OF AT LEAST A PORTION OF THE LUBRICATING OIL EMPLOYED IN THE GREASE, HEATING THE GREASE MIXTURE THUS OBTAINED TO A TOP TEMPERATURE IN THE RANGE FROM ABOUT 250*F. TO 275*F., SAID TOP TEMPERATURE BEING JUST BELOW THE MELTING POINT OF THE SAID SOAP AND THEREAFTER COOLING THE GREASE MIXTURE WITH THE ADDITION OF ADDITIONAL LUBRICATING OIL AT A LOWER TEMPERATURE THAN THE GREASE MIXTURE, THE IMPROVEMENT WHICH COMPRISES SHEARING THE GREASE MIXTURE DURING THE SAID HEATING STEP BY RECIRCULATING THE SAID GREASE MIXTURE FROM A MAINTAINED BODY THEREOF THROUGH A SHEAR VALVE OPERATED WITH A PRESSURE DROP OF ABOUT 20-200 POUNDS PER SQUARE INCH AT A RATE SUCH THAT THE WEIGHT OF RECIRCULATED GREASE MIXTURE EQUALS THE TOTAL AVERAGE WEIGHT OF GREASE MIXTURE DURING THE SAID HEATING STEP IN FROM ABOUT 0.25 TO ABOUT 15 MINUTES, FOR A MINIMUM PERIOD OF ABOUT 15 MINUTES AND UNTIL THE WEIGHT OF RECIRCULATED GREASE MIXTURE IS EQUAL TO AT LEAST 5 TIMES THE TOTAL WEIGHT OF GREASE MIXTURE.
References Cited (Backward Citations)
US2332202A
Cited
US3068175A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-03-21 | 1969-09-20 | 1970-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-21 | 1973-09-20 | 1974-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-21 | 1977-09-20 | 1978-03-22 | $7700.00 | Window Closed / Lapsed |