US4256771A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Continuous gelatinization process
Assignee: General Foods Inc
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Filing: 1978-11-06
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Granted: 1981-03-17
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Expires: 1998-11-06
Abstract
Abstract A starch-containing material is gelatinized in a continuous process by contacting discrete granules of the material with steam under substantial turbulence utilizing a Venturi mixing effect. The water content of the initial turbulent mixture is sufficiently high so as to permit gelatinization at elevated temperature but insufficient to cause formation of an aqueous slurry of the starch-containing material.
Inventors
- 👤 Gary A. Henderson
- 👤 William J. C. Thompson
- 👤 John T. Thatcher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 05:55
CPC Classifications
C; C08; C08B; C08B30/00; C08B30/12; A; A21; A21D; A21D2/00; A21D2/08; A21D2/14; A21D2/18; A21D2/186; A23; A23B; A23B2/00; A23B2/40; A23B2/42; A23B2/425; A23K; A23K20/00; A23K20/10; A23K20/163; A23K40/00; Y; Y10; Y10S; Y10S426/00; Y10S426/805
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
128 words
A continuous process for gelatinization of a starch-containing material by the use of steam, comprising the steps of: (a) continuously directly feeding a particulate starch-containing material in a substantially free-flowing state into a mixing chamber, (b) continuously and separately directly feeding wet steam into said mixing chamber, said wet steam providing water to said mixing chamber in an amount sufficient to permit gelatinization of said starch-containing material but insufficient to cause the formation of a slurry of said starch-containing material in said process; (c) mixing said starch-containing material with the wet steam employing a venturi effect to cause turbulence and uniform mixing to raise said starch-containing material temperature to a level sufficient for gelatinization; and (d) withdrawing a substantially dry gelatinized particulate starch-containing material from said mixing chamber.
Claim 2
Dependent Claim
128 words
A continuous process for gelatinization of a starch-containing material by the use of steam, comprising the steps of: (a) continuously directly feeding a particulate starch-containing material in a substantially free-flowing state into a mixing chamber, (b) continuously and separately directly feeding wet steam into said mixing chamber, said wet steam providing water to said mixing chamber in an amount sufficient to permit gelatinization of said starch-containing material but insufficient to cause the formation of a slurry of said starch-containing material in said process; (c) mixing said starch-containing material with the wet steam employing a venturi effect to cause turbulence and uniform mixing to raise said starch-containing material temperature to a level sufficient for gelatinization; and (d) withdrawing a substantially dry gelatinized particulate starch-containing material from said mixing chamber.
Claim 3
Dependent Claim
12 words
The process of claim 1 wherein said starch-containing material comprises corn flour.
Claim 4
Dependent Claim
13 words
The process of claim 1 wherein said starch-containing material comprises an animal feed.
Claim 5
Dependent Claim
14 words
The process of claim 1 wherein said starch-containing material comprises an oil-containing pastry mix.
Claim 6
Dependent Claim
14 words
The process of claim 4 wherein an edible color is added to said water.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-03-16 | 1984-09-15 | 1985-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-03-16 | 1988-09-15 | 1989-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-03-16 | 1992-09-15 | 1993-03-17 | $7700.00 | Window Closed / Lapsed |