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US4256771A Expired / Lapsed US ⏱️ 0.0 years remaining

Continuous gelatinization process

Assignee: General Foods Inc
•
Filing: 1978-11-06
•
Granted: 1981-03-17
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Expires: 1998-11-06
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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)

US2805966A Cited
US2929748A Cited
US3067064A Cited
US3219483A Cited
US3133836A Cited
US3374096A Cited
US3256115A Cited

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

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