Patent US2870090A successfully refreshed from Google Patents.
US2870090A
Expired / Lapsed
US
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Method of grease manufacture comprising shearing
Assignee: Texaco Inc
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Filing: 1956-06-25
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Granted: 1959-01-20
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Expires: 1976-06-25
Abstract
No abstract record available.
Inventors
- 👤 Herbert J Pitman
- 👤 Jr William E Jordan
- 👤 Gordon S Bright
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:16
CPC Classifications
C; C10; C10M; C10M5/00; C10M2205/00; C10M2207/00; C10M2207/10; C10M2207/12; C10M2207/125; C10M2207/129; C10M2207/28; C10M2207/282; C10M2207/34; C10M2209/00; C10M2209/02; C10M2209/10; C10N; C10N2010/00; C10N2010/02; C10N2010/04; C10N2010/06; C10N2010/08; C10N2050/00; C10N2050/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
97 words
THE METHOD OF GREASE MANUFACTURE WHICH COMPRISES COOLING A MIXTURE OF LITHIUM HYDROXY FATTY ACID SOAP AND OLEAGINOUS LIQUID IN GREASE-FORMING PROPORTIONS TO A TEMPERATURE BELOW ITS PHASE TRANSITION TEMPERATURE RANGE AND THEN SUBJECTING THE SAID GREASE MIXTURE TO A LIMITED AMOUNT OF SHEARING, REPRESENTED BY AN AMOUNT OF WORK BELOW ABOUT 1000 FOOT POUNDS PER POUND OF FINISHED GREASE, BY PASSING THE SAID COOLED GREASE MIXTURE THROUGH A SHEAR VALVE WITH A PRESSURE DROP OF ABOUT 15-200 P. S. I. ACROSS SAID VALVE, WITH SUBSTANTIALLY NO ADDITIONAL WORK ING OF THE GREASE DURING THE FINISHING PROCESS.
Claim 2
Independent Claim
97 words
THE METHOD OF GREASE MANUFACTURE WHICH COMPRISES COOLING A MIXTURE OF LITHIUM HYDROXY FATTY ACID SOAP AND OLEAGINOUS LIQUID IN GREASE-FORMING PROPORTIONS TO A TEMPERATURE BELOW ITS PHASE TRANSITION TEMPERATURE RANGE AND THEN SUBJECTING THE SAID GREASE MIXTURE TO A LIMITED AMOUNT OF SHEARING, REPRESENTED BY AN AMOUNT OF WORK BELOW ABOUT 1000 FOOT POUNDS PER POUND OF FINISHED GREASE, BY PASSING THE SAID COOLED GREASE MIXTURE THROUGH A SHEAR VALVE WITH A PRESSURE DROP OF ABOUT 15-200 P. S. I. ACROSS SAID VALVE, WITH SUBSTANTIALLY NO ADDITIONAL WORK ING OF THE GREASE DURING THE FINISHING PROCESS.
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) | 1962-01-19 | 1962-07-21 | 1963-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-01-19 | 1966-07-21 | 1967-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-01-19 | 1970-07-21 | 1971-01-20 | $7700.00 | Window Closed / Lapsed |