US4461781A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Freezing of vegetables
Assignee: Nestec SA
•
Filing: 1983-05-03
•
Granted: 1984-07-24
•
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
2026-10-30 23:24
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.
References Cited (Backward Citations)
US2385140A
Cited
US3030214A
Cited
US3453121A
Cited
US3377172A
Cited
US3734751A
Cited
US3865965A
Cited
US4042717A
Cited
CA1043160A
Cited
US4086369A
Cited
GB1552348A
Cited
US4335584A
Cited
US4308295A
Cited
JPS557221A
Cited
GB2039015A
Cited
US4230732A
Cited
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 |