US4007291A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for fixing coffee grinder gas
Assignee: General Foods Corp
•
Filing: 1974-05-20
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Granted: 1977-02-08
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Expires: 1994-05-20
Abstract
Abstract Coffee grinder gas is fixed in a glyceride at relatively high levels by means of high pressure. Liquid nitrogen condensed grinder gas frost is contacted in a pressure vessel with an oil. Heat is supplied to the vessel to vaporize the frost, and after the contents of the vessel reach room temperature, and the liquid glyceride has absorbed grinder gas aromatics, the vessel is slowly depressurized. The aromatized liquid glyceride is then used for enhancing soluble coffee products.
Inventors
- 👤 Dennis Ted Siedlecki
- 👤 James F. Meinhold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:13
CPC Classifications
A; A23; A23F; A23F5/00; A23F5/46; A23F5/48; A23F5/486
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
149 words
A method for aromatizing soluble coffee with an aromatized glyceride comprising the steps of: a. condensing, as a frost, an aroma-containing gas which has a high carbon dioxide content, b. placing the aroma-containing frost in a pressure vessel, c. isolating the vessel from the atmosphere, d. supplying heat to the contents of the vessel to produce an internal pressure of at least 700 p.s.i.g. and an internal temperature above the congeal point of the glyceride carrier of step e, e. contacting, within said pressurized vessel, the frost aromas and a liquid glyceride phase, said glyceride being present in the vessel at a level of about 1 gram of glyceride to 0.5 to 6 grams of the frost, f. thereafter, slowly and isothermally releasing the pressure within the vessel so that the glyceride carrier is maintained in a liquid state, and then, g. combining the aromatized glyceride with coffee solids.
Claim 2
Independent Claim
149 words
A method for aromatizing soluble coffee with an aromatized glyceride comprising the steps of: a. condensing, as a frost, an aroma-containing gas which has a high carbon dioxide content, b. placing the aroma-containing frost in a pressure vessel, c. isolating the vessel from the atmosphere, d. supplying heat to the contents of the vessel to produce an internal pressure of at least 700 p.s.i.g. and an internal temperature above the congeal point of the glyceride carrier of step e, e. contacting, within said pressurized vessel, the frost aromas and a liquid glyceride phase, said glyceride being present in the vessel at a level of about 1 gram of glyceride to 0.5 to 6 grams of the frost, f. thereafter, slowly and isothermally releasing the pressure within the vessel so that the glyceride carrier is maintained in a liquid state, and then, g. combining the aromatized glyceride with coffee solids.
Claim 3
Dependent Claim
15 words
The method of claim 1 wherein the aromatized glyceride is added to soluble coffee powder.
Claim 4
Dependent Claim
25 words
The method of claim 1 wherein contact between the frost aromas and the liquid glyceride is maintained for a period in excess of 1 hour.
Claim 5
Dependent Claim
25 words
The method of claim 3 wherein heat is supplied to the sealed pressure vessel by means of a water bath at 70° to 85° F.
Claim 6
Dependent Claim
21 words
The method of claim 1 wherein the aroma-bearing gas is obtained by disrupting the cellular structure of freshly roasted coffee beans.
Claim 7
Dependent Claim
23 words
The method of claim 1 wherein heat is supplied to the vessel by means of a 70° F. to 85° F. water jacket.
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) | 1980-02-08 | 1980-08-09 | 1981-02-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-02-08 | 1984-08-09 | 1985-02-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-02-08 | 1988-08-09 | 1989-02-08 | $7700.00 | Window Closed / Lapsed |