US2653957A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Continuous extraction of oil from vegetable materials
Assignee: Individual
•
Filing: 1951-06-28
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Granted: 1953-09-29
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Expires: 1971-06-28
Abstract
No abstract record available.
Inventors
- 👤 Richard H Westergaard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:55
CPC Classifications
C; C11; C11B; C11B1/00; C11B1/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
115 words
A PROCESS FOR EXTRACTING ALCOHOL-SOLUBLE OILS FROM A MATERIAL OF THE GROUP CONSISTING OF VEGETABLE SEEDS AND NUT MEATS, COMPRISING SUBJECTING THE SAID MATERIAL TO EXTRACTION WITH HOT ALCOHOL, WITHDRAWING THE ALCOHOLIC SOLUTION, COOLING THE LATTER TO TEMPERATURE THAT IS NOT ABOVE 20* C. TO CAUSE THE SEPARATION OF OIL AND SOLIDS, AND SEPARATING THE ALCOHOLIC SOLUTION FROM THE OIL AND SOLIDS, TREATING THE SEPARATED ALCOHOLIC SOLUTION WITH AN ALKALINE AGENT THUS TO CAUSE PURIFICATION OF THE SOLVENT BY SEPARATION OF INSOLUBLE MATERIAL, REMOVING THE SEPARATED INSOLUBLE MATERIAL, AND RE-USING THE THUS PURIFIED ALCOHOLIC SOLUTION IN THE EXTRACTION PROCESS WITHOUT SUBJECTING THE LATTER SOLUTION TO DISTILLATION REFINEMENT TO EXTRACT A FRESH BATCH OF THE MATERIAL.
Claim 2
Dependent Claim
115 words
A PROCESS FOR EXTRACTING ALCOHOL-SOLUBLE OILS FROM A MATERIAL OF THE GROUP CONSISTING OF VEGETABLE SEEDS AND NUT MEATS, COMPRISING SUBJECTING THE SAID MATERIAL TO EXTRACTION WITH HOT ALCOHOL, WITHDRAWING THE ALCOHOLIC SOLUTION, COOLING THE LATTER TO TEMPERATURE THAT IS NOT ABOVE 20* C. TO CAUSE THE SEPARATION OF OIL AND SOLIDS, AND SEPARATING THE ALCOHOLIC SOLUTION FROM THE OIL AND SOLIDS, TREATING THE SEPARATED ALCOHOLIC SOLUTION WITH AN ALKALINE AGENT THUS TO CAUSE PURIFICATION OF THE SOLVENT BY SEPARATION OF INSOLUBLE MATERIAL, REMOVING THE SEPARATED INSOLUBLE MATERIAL, AND RE-USING THE THUS PURIFIED ALCOHOLIC SOLUTION IN THE EXTRACTION PROCESS WITHOUT SUBJECTING THE LATTER SOLUTION TO DISTILLATION REFINEMENT TO EXTRACT A FRESH BATCH OF THE MATERIAL.
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) | 1956-09-28 | 1957-03-30 | 1957-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-09-28 | 1961-03-30 | 1961-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-09-28 | 1965-03-30 | 1965-09-29 | $7700.00 | Window Closed / Lapsed |