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Patent US4461781A successfully refreshed from Google Patents.
US4461781A
Expired / Lapsed
US
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Freezing of vegetables
Assignee: Nestec SA
•
Filing: 1983-05-03
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Granted: 1984-07-24
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Expires: 2003-05-03
Abstract
Abstract A method of freezing boiled rice or a blanched leafy vegetable in a freezer having an operating temperature from -25° C. to -50° C. characterized in that before entering the freezer, the unfrozen product is cooled and intimately mixed with from 20% to 80% by weight based on the weight of the mixture of already frozen free-flowing boiled rice or blanched leafy vegetable.
Inventors
- 👤 Yngve R. Akesson
- 👤 Bengt L. Bengtsson
- 👤 Lars G. Bodenaes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 13:24
CPC Classifications
A; A23; A23B; A23B7/00; A23B7/04; A23B7/0425; A23B7/0408; A23B9/00; A23B9/10
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
78 words
A method of freezing boiled rice or a blanched leafy vegetable in a freezer having an operating temperature from -25° C. to -50° C. to produce a frozen substantially non-lumpy, free-flowing product characterised in that before entering the freezer, the unfrozen boiled rice or blanched leafy vegetable is cooled and then intimately mixed with from 20% to 80% by weight based on the weight of the mixture of already frozen free-flowing boiled rice or blanched leafy vegetable, respectively.
Claim 2
Independent Claim
78 words
A method of freezing boiled rice or a blanched leafy vegetable in a freezer having an operating temperature from -25° C. to -50° C. to produce a frozen substantially non-lumpy, free-flowing product characterised in that before entering the freezer, the unfrozen boiled rice or blanched leafy vegetable is cooled and then intimately mixed with from 20% to 80% by weight based on the weight of the mixture of already frozen free-flowing boiled rice or blanched leafy vegetable, respectively.
Claim 3
Dependent Claim
16 words
A method according to claim 1 characterised in that the freezer is a fluidised bed freezer.
Claim 4
Dependent Claim
26 words
A method according to claim 1 characterised in that the unfrozen rice or vegetable is dewatered before being mixed with the already frozen rice or vegetable.
Claim 5
Dependent Claim
38 words
A method according to claim 1 characterised in that the amount of already frozen rice or vegetable mixed with the unfrozen rice or vegetable is from 40% to 60% by weight based on the weight of the mixture.
Claim 6
Dependent Claim
28 words
A method according to claim 1 characterised in that the temperature of the mixture as it enters the fluidised bed freezer is from -3° C. to +1° C.
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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) | 1987-07-24 | 1988-01-23 | 1988-07-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-07-24 | 1992-01-23 | 1992-07-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-07-24 | 1996-01-23 | 1996-07-24 | $7700.00 | Window Closed / Lapsed |