US3965269A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of extracting roasted coffee
Assignee: GENERAL FOODS Ltd
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Filing: 1972-12-11
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Granted: 1976-06-22
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Expires: 1992-12-11
Abstract
Abstract A novel process for extracting roasted coffee using split-extraction percolation techniques is disclosed comprising obtaining an autoclave coffee extract by passing aqueous extraction liquid through the autoclave section of the percolator set, splitting the autoclave extract into a product portion and a feed portion, obtaining an atmospheric coffee extract product from the atmospheric section of the percolator set by passing the feed portion of the autoclave coffee extract through the atmospheric section, and further processing the atmospheric coffee extract product and the product portion of the autoclave extract to obtain a dry instant coffee product.
Inventors
- 👤 William F. Lee
- 👤 William J. Jeffery
- 👤 Richard R. Pyves
- 👤 Moshi Y. Isaac
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 19:33
CPC Classifications
A; A23; A23F; A23F5/00; A23F5/24; A23F5/26; A23F5/262
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
157 words
A process for producing coffee extract by split-extraction percolation of roasted and ground coffee wherein a percolator set is divided into an atmospheric section and an autoclave section, comprising a. extracting soluble coffee solids from roasted and ground coffee in said autoclave section by passing an aqueous autoclave extraction liquid through said autoclave section; b. drawing off a pre-determined quantity of autoclave coffee extract from the fresh stage of said autoclave section; c. splitting said autoclave coffee extract into a product portion and a feed portion; d. passing the feed portion of said autoclave extract through said atmospheric section to extract soluble coffee solids from the roasted and ground coffee in said atmospheric section; e. drawing off a pre-determined quantity of atmospheric coffee extract product from the fresh stage of said atmospheric section; and f. further processing said atmospheric coffee extract and said product portion of said autoclave coffee extract to obtain a dry instant coffee product.
Claim 2
Dependent Claim
157 words
A process for producing coffee extract by split-extraction percolation of roasted and ground coffee wherein a percolator set is divided into an atmospheric section and an autoclave section, comprising a. extracting soluble coffee solids from roasted and ground coffee in said autoclave section by passing an aqueous autoclave extraction liquid through said autoclave section; b. drawing off a pre-determined quantity of autoclave coffee extract from the fresh stage of said autoclave section; c. splitting said autoclave coffee extract into a product portion and a feed portion; d. passing the feed portion of said autoclave extract through said atmospheric section to extract soluble coffee solids from the roasted and ground coffee in said atmospheric section; e. drawing off a pre-determined quantity of atmospheric coffee extract product from the fresh stage of said atmospheric section; and f. further processing said atmospheric coffee extract and said product portion of said autoclave coffee extract to obtain a dry instant coffee product.
Claim 3
Dependent Claim
33 words
The process of claim 1 wherein said product portion of said autoclave coffee extract is the first portion of said autoclave coffee extract drawn off from said fresh stage of said autoclave section.
Claim 4
Dependent Claim
33 words
The process of claim 1 wherein said product portion of said autoclave coffee extract is the second portion of said autoclave coffee extract drawn off from said fresh stage of said autoclave section.
Claim 5
Dependent Claim
22 words
The process of claim 1 wherein said atmospheric coffee extract and said product portion of said autoclave extract are combined before drying.
Claim 6
Dependent Claim
16 words
The process of claim 4 wherein said product portion of said autoclave coffee extract is concentrated.
Claim 7
Dependent Claim
42 words
The process of claim 5 wherein said product portion of said autoclave coffee extract is stripped of aromatics before being concentrated and said aromatics are added to the combined atmospheric coffee extract and the product portion of the autoclave extract before drying.
Claim 8
Dependent Claim
15 words
The process of claim 5 wherein said aromatics are added after drying said combined extracts.
Claim 9
Dependent Claim
24 words
The process of claim 1 wherein said atmospheric coffee extract and said product portion of said autoclave coffee extract are combined after separate drying.
Claim 10
Dependent Claim
23 words
The process of claim 8 wherein said atmospheric coffee extract is freeze-dried and said product portion of said autoclave coffee extract is spray-dried.
Claim 11
Dependent Claim
33 words
The process of claim 9 wherein said product portion of said autoclave coffee extract is stripped of aromatics before spray-drying and wherein said aromatics are added to said atmospheric coffee extract before freeze-drying.
Claim 12
Dependent Claim
16 words
the process of claim 10 wherein said aromatics are added to said freeze-dried atmospheric coffee extract.
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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) | 1979-06-22 | 1979-12-22 | 1980-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-06-22 | 1983-12-22 | 1984-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-06-22 | 1987-12-22 | 1988-06-22 | $7700.00 | Window Closed / Lapsed |