US3713842A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Agglomeration of roast and ground coffee with instant coffee solubles
Assignee: Procter and Gamble Co
•
Filing: 1970-12-10
•
Granted: 1973-01-30
•
Expires: 1990-12-10
Abstract
Abstract A method of pan agglomerating roast and ground coffee using instant coffee extract as an agglomerating agent. The method yields a product which is approximately 25 percent lower in tamped bulk density than roast and ground coffee and yet equal in brew flavor strength to conventional roast and ground coffee.
Inventors
- 👤 T Lubsen
- 👤 F Joffe
- 👤 P Gregory
- 👤 Swiggin J Mc
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 03:11
CPC Classifications
A; A23; A23F; A23F5/00; A23F5/10; A23F5/12
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
135 words
A method of pan agglomerating roast and ground coffee using coffee extract as the agglomerating agent, said method comprising, placing conventional roast and ground coffee particles in an inclined circular rotating pan, the bottom of said rotary pan forming an angle of from 40* to 60* with respect to the horizontal and said pan rotating at a speed of from 5 rpm to 50 rpm; spraying coffee extract having a solubles concentration of from 40 to 70 percent onto said roast and ground coffee particles whereby said particles of conventional roast and ground coffee aggregate to form agglomerates comprised of from 1 to 15 percent by weight of instant coffee, drying the agglomerates to form a unique appearance agglomerated roast and ground coffee product having a bulk density of from 0.30 g/cc to 0.35 g/cc.
Claim 2
Independent Claim
135 words
A method of pan agglomerating roast and ground coffee using coffee extract as the agglomerating agent, said method comprising, placing conventional roast and ground coffee particles in an inclined circular rotating pan, the bottom of said rotary pan forming an angle of from 40* to 60* with respect to the horizontal and said pan rotating at a speed of from 5 rpm to 50 rpm; spraying coffee extract having a solubles concentration of from 40 to 70 percent onto said roast and ground coffee particles whereby said particles of conventional roast and ground coffee aggregate to form agglomerates comprised of from 1 to 15 percent by weight of instant coffee, drying the agglomerates to form a unique appearance agglomerated roast and ground coffee product having a bulk density of from 0.30 g/cc to 0.35 g/cc.
Claim 3
Dependent Claim
15 words
The process of claim 1 wherein the pan height-diameter ratio is from 0.13 to 0.17.
Claim 4
Dependent Claim
13 words
The process of claim 1 wherein the angle is from 45* to 50*.
Claim 5
Dependent Claim
16 words
The process of claim 1 wherein the extract solubles concentration is from 55 to 65 percent.
Claim 6
Dependent Claim
21 words
The process of claim 1 wherein the rotary pan is rotating at a speed of from 15 rpm to 30 rpm.
Claim 7
Dependent Claim
24 words
The process of claim 1 wherein the agglomerated roast and ground coffee product comprises from 5 to 10 percent by weight of instant coffee.
Claim 8
Dependent Claim
28 words
The process of claim 1 wherein the ratio of the roast and ground coffee solids feed rate to the extract spraying feed rate is from 10:1 to 4:1.
Claim 9
Dependent Claim
13 words
The process of claim 7 wherein the ratio is from 8:1 to 5:1.
Claim 10
Dependent Claim
20 words
The process of claim 1 wherein the residence time in the rotating pan is from 1 minute to 15 minutes.
Claim 11
Dependent Claim
16 words
The process of claim 9 wherein the residence time is from 3 minutes to 8 minutes.
Claim 12
Dependent Claim
19 words
The process of claim 1 wherein the agglomerates are dried at a temperature of from 120* to 200* F.
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) | 1976-01-30 | 1976-07-31 | 1977-01-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-30 | 1980-07-31 | 1981-01-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-30 | 1984-07-31 | 1985-01-30 | $7700.00 | Window Closed / Lapsed |