US3656964A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Soluble coffee process
Assignee: General Foods Corp
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Filing: 1969-11-10
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Granted: 1972-04-18
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Expires: 1989-11-10
Abstract
Abstract A process for producing a soluble coffee has been discovered in which a unique use of standard percolation columns results in an improved process. The process involves using two fresh columns, volatile aromatics being stripped from one fresh column and taking a double draw-off from every other fresh column in order to obtain a steeper concentration gradient in the resultant extract. The extract is split into high and low concentration portions and subjected to further processing.
Inventors
- 👤 Michael H Mansky
- 👤 Esra Pitchon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 20:57
CPC Classifications
A; A23; A23F; A23F5/00; A23F5/24; A23F5/36; A23F5/26; A23F5/262
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
86 words
The process of claim 1 wherein the extract drawn off from a percolator is split into two portions, the first portion containing not more than 50 percent by weight of the total draw-off, and the second portion containing the remainder of the extract drawn off; the volatile aromatics being added to the first portion of extract; the first portion of extract being freeze dried; the second portion of extract being spray dried; and the freeze dried and spray dried soluble solids being blended prior to packaging.
Claim 2
Dependent Claim
22 words
The process of claim 1 wherein the volatile aromatics are added back to the dry soluble coffee after the extract is dried.
Claim 3
Dependent Claim
81 words
The process according to claim 1 wherein the extract drawn off from a percolator is split into two portions, the first portion containing not more than 50 percent by weight of the total draw-off, and the second portion of the extract containing the remainder of the extract drawn off and wherein the second portion of extract is concentrated by evaporative concentration and the concentrated extract is blended with the first portion of extract and the volatile aromatics prior to freeze drying.
Claim 4
Dependent Claim
35 words
The process of claim 4 wherein additional volatile aromatics are stripped out of the second portion of extract prior to concentration and the additional volatiles are added to the blended extracts prior to freeze drying.
Claim 5
Dependent Claim
44 words
The process of claim 1 wherein the extract drawn-off from a percolator is split into two portions, the first portion containing not more than 50 percent by weight of the total draw-off, and the second portion containing the remainder of the extract drawn off.
Claim 6
Dependent Claim
56 words
The process of claim 6 wherein volatile aromatics are stripped out of the second portion of extract and collected and added to the first portion of extract; the second portion of extract is spray dried; the first portion of extract is freeze dried; and the spray dried and freeze dried soluble solids are blended before packaging.
Claim 7
Dependent Claim
35 words
The process of claim 6 wherein thE first portion of extract is freeze dried; the second portion of extract is spray dried; and the spray dried and freeze dried soluble solids are blended before packaging.
Claim 8
Dependent Claim
51 words
The process of claim 6 wherein volatile aromatics are stripped out of the second portion of extract and collected; the second portion of extract is concentrated by evaporative concentration; and the concentrated second portion of extract, the volatile aromatics collected and the first portion of extract are blended prior to drying.
Claim 9
Dependent Claim
12 words
The process of claim 9 wherein the blended extract is freeze dried.
Claim 10
Dependent Claim
31 words
The process of claim 6 wherein the second portion of extract is concentrated by evaporative concentration; and the concentrated extract and the first portion of extract are blended prior to drying.
Claim 11
Dependent Claim
12 words
The process of claim 11 wherein the blended extract is freeze dried.
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) | 1975-04-18 | 1975-10-18 | 1976-04-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-04-18 | 1979-10-18 | 1980-04-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-04-18 | 1983-10-18 | 1984-04-18 | $7700.00 | Window Closed / Lapsed |