US4055675A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of puffed fruit
Assignee: United States Department of Agriculture
•
Filing: 1976-12-13
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Granted: 1977-10-25
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Expires: 1996-12-13
Abstract
Abstract Bite-size pieces of fruit are prepared by a process wherein the fruit is partially dehydrated, puffed, and then heated to obtain a crisp outer surface thereon. The fruit is puffed by immersing it in a pool of liquid carbon dioxide under pressure and then rapidly releasing the pressure.
Inventors
- 👤 Karel Popper
- 👤 William G. Schultz
- 👤 Wayne M. Camirand
- 👤 Earl Hautala
- 👤 George H. Robertson
- 👤 Ladell Crawford
- 👤 Bernard J. Finkle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 13:26
CPC Classifications
A; A23; A23L; A23L19/00; A23L19/03; A23P; A23P30/00; A23P30/30; A23P30/32
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
97 words
A process for preparing a food product from bite-size pieces of fruit, which consists of the steps of a. partially dehydrating the fruit to a moisture content of about 10-50%, b. contacting the dehydrated fruit solely with liquid carbon dioxide at ambient temperature for about from 0.5-6 hours, said liquid carbon dioxide being maintained under a pressure of about 900-1000 psig, c. rapidly releasing the pressure to puff the fruit, and then d. heating the puffed fruit at about 70°-90° C for 1-24 hours to form a crisp outer layer on the surface of the puffed fruit.
Claim 2
Dependent Claim
97 words
A process for preparing a food product from bite-size pieces of fruit, which consists of the steps of a. partially dehydrating the fruit to a moisture content of about 10-50%, b. contacting the dehydrated fruit solely with liquid carbon dioxide at ambient temperature for about from 0.5-6 hours, said liquid carbon dioxide being maintained under a pressure of about 900-1000 psig, c. rapidly releasing the pressure to puff the fruit, and then d. heating the puffed fruit at about 70°-90° C for 1-24 hours to form a crisp outer layer on the surface of the puffed fruit.
References Cited (Backward Citations)
US1725171A
Cited
US2124746A
Cited
US3007319A
Cited
US3408209A
Cited
US3368363A
Cited
US3833747A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-10-24 | 1981-04-25 | 1981-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-10-24 | 1985-04-25 | 1985-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-10-24 | 1989-04-25 | 1989-10-25 | $7700.00 | Window Closed / Lapsed |