US3700704A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Triglyceride refining
Assignee: Pennwalt Corp
•
Filing: 1970-02-27
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Granted: 1972-10-24
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Expires: 1990-02-27
Abstract
Abstract A new use for a centrifuge having an axial screw conveyor, heretofore used only for liquid-solids separation, is proposed for liquid-liquid separation in the refining of triglycerides.
Inventors
- 👤 Albert S Zambone
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:12
CPC Classifications
B; B01; B01D; B01D17/00; B01D17/02; B01D17/0217; C; C11; C11B; C11B3/00; C11B3/16; Y; Y10; Y10S; Y10S494/00; Y10S494/901
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
29 words
The invention according to claim 1 wherein the second discharge means has an inlet opening at a smaller radial distance from said axis than is said first discharge opening.
Claim 2
Dependent Claim
29 words
The invention according to claim 1 wherein the second discharge means has an inlet opening at a greater radial distance from said axis than is said first discharge opening.
Claim 3
Dependent Claim
25 words
The invention according to claim 1 wherein the heavy phase material is a liquid that is substantially more viscous than the light phase liquid material.
Claim 4
Dependent Claim
18 words
The invention according to claim 1 wherein the feed is unfiltered prior to introduction to said centrifuge bowl.
Claim 5
Dependent Claim
18 words
The invention according to claim 1 wherein the heavy phase liquid in the feed is a triglyceride material.
Claim 6
Dependent Claim
24 words
The invention according to claim 1 wherein the feed is derived from the reaction of aqueous sodium hydroxide with a stream of rendered fat.
Claim 7
Dependent Claim
16 words
The invention according to claim 7 wherein the stream of rendered fat is in hexane solution.
Claim 8
Dependent Claim
24 words
The invention according to claim 1 wherein the feed is derived from the reaction of aqueous sodium hydroxide with a stream of vegetable oil.
Claim 9
Dependent Claim
16 words
The invention according to claim 9 wherein the stream of vegetable oil is in hexane solution.
References Cited (Backward Citations)
US2838553A
Cited
US3053440A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-10-24 | 1976-04-24 | 1976-10-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-24 | 1980-04-24 | 1980-10-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-24 | 1984-04-24 | 1984-10-24 | $7700.00 | Window Closed / Lapsed |