US3630754A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Milling of cereal grains and processing of products derived therefrom
Assignee: Individual
•
Filing: 1969-05-07
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Granted: 1971-12-28
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Expires: 1989-05-07
Abstract
Abstract This invention relates to improvements in milling and processing cereal grains and has, as its primary objective, the separation and recovery of the fibrous, proteinaceous and starchy components of said cereal grains in more concentrated, purer states. The improved results are obtained by separating and removing the major portion of the fibrous components from the system as early as possible in the overall process so that the separating section, in which the final separation between said fibrous, proteinaceous and starchy components occurs, is not overloaded by the fibrous components and can, therefore, operate more efficiently.
Inventors
- 👤 Truman Benjamin Wayne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 04:49
CPC Classifications
A; A23; A23J; A23J1/00; A23J1/12; A23L; A23L7/00; A23L7/10
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
182 words
In a process for milling and processing cereal grains wherein the grain is subjected to a primary controlled milling operation conducted in the presence of a substantially nonaqueous volaTile liquid fat-extractive organic solvent to effect separation of the bran coat and the oily germ fractions from the endosperm fraction and also wherein the milled grain fractions are thereafter subjected to solvent extraction and separation steps to yield a cereal grain oil and the starch, gluten and fibrous components in the final separation stages, the improvement which comprises, subjecting the milled grain immediately after the milling operation is completed to separation stages and solvent extraction to substantially separate the endosperm and bran fractions, conducting the endosperm fraction to the final separation stages to separate the starchy, proteinaceous and minor portions of the fibrous components from each other, subjecting the bran fractions which were separated immediately after the milling operation was completed to further separations to separate the major portion of the fibrous component of the bran fraction, and recovering said fibrous component without directing it through the final separation stages of the process.
Claim 2
Dependent Claim
161 words
In a solvent-extractive milling process for cereal grains wherein the grain is subjected to a primary controlled milling operation in the presence of a volatile liquid fat-extractive organic solvent capable of extracting the fatty components to initially effect a substantial separation between the endosperm fractions and the combined bran coat and oily germ fractions and also wherein the endosperm fraction is ultimately subjected to final separation procedures in the presence of said solvent to separate a preponderantly starchy endosperm component from any residual bran coat fractions, the improvement which comprises, following the primary milling step with additional separation steps to further separate from the bran fractions the endosperm fractions which are conducted to said final separation procedure, subjecting the separated bran fractions to an extraction and grinding step to separate and remove therefrom any residual endosperm fractions, and combining the separated residual endosperm fractions with the previously separated endosperm fractions prior to the latter being conducted to the final separating procedures.
Claim 3
Dependent Claim
33 words
The improvement as set forth in claim 3, with the additional step of independently recovering the separated bran fractions, whereby such fractions are not subjected to the final separation procedure of the process.
Claim 4
Dependent Claim
26 words
The improvement as set forth in claim 3 wherein the cereal grains are selected from the group consisting of wheat, maize, rye and the sorghum grains.
Claim 5
Dependent Claim
127 words
The improvement as set forth in claim 3, wherein the additional separation steps and the step of subjecting the bran fractions to extraction and grinding comprise, subjecting the fractions discharged from the milling operation to a first-stage screening and solvent extraction, conducting the material which traverses the screen of said first-stage screening to a grinding operation and thereafter to a second-stage screening and solvent extraction, conducting the material which traverses the screen of second-stage screening to a second grinding operation and thereafter to a third-stage screening and solvent extraction, directing the underflow from said second and third stage screenings to the final separation stage of the process, and independently recovering from the third-stage screening the predominantly fibrous material which has traversed the screen of said third-stage screening.
Claim 6
Dependent Claim
81 words
The improvement as set forth in claim 6, together with the additional steps of, conducting the oil-containing solvent having bran coat and endosperm fractions therein from the primary milling operation and from the first-stage screening, extracting the bran coat and endosperm fractions from the solvent, subjecting the extracted fractions to screening and solvent extraction to separate the major portion of the fibrous component, separately recovering said fibrous component, anD conducting the remaining fractions to the final separation stage of the process.
Claim 7
Dependent Claim
26 words
The improvement as set forth in claim 6, wherein the cereal grains are selected from the group consisting of wheat, maize, rye and the sorghum grains.
References Cited (Backward Citations)
US3261690A
Cited
US3421902A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-12-27 | 1975-06-28 | 1975-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-27 | 1979-06-28 | 1979-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-27 | 1983-06-28 | 1983-12-28 | $7700.00 | Window Closed / Lapsed |