US4015020A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tartar removal by electrodialysis and potassium level control in wine
Assignee: Morinaga Milk Industry Co Ltd
•
Filing: 1975-04-29
•
Granted: 1977-03-29
•
Expires: 1995-04-29
Abstract
Abstract A method of treating wine, comprising introducing crude wine to both the dilution and concentration chambers of an electrodialysis apparatus; operating said apparatus so that the potassium concentration of the wine in the dilution chamber falls to below 500 mg/liter and the potassium content of the wine in the concentration chamber is increased into the range 1000 to 2000 mg/liters; cooling the wine from the concentration chamber to below 10 DEG C and adding tartaric acid crystals to said wine in order to adjust the pH into the range of 2.8 to 3.2 thereby precipitating tartar; separating the tartar from the wine and admixing said wine with wine emerging from the dilution chamber of the electrodialysis apparatus in a ratio such that the potassium content of the resulting mixture is below 500 mg/liter.
Inventors
- 👤 Taro Nagasawa
- 👤 Mamoru Tomita
- 👤 Yoshitaka Tamura
- 👤 Teruhiko Mizota
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 06:25
CPC Classifications
C; C12; C12H; C12H3/00; C12H3/04
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
131 words
A method of treating wine, which comprises: introducing crude wine to both the dilution and concentration chambers of an electrodialysis apparatus; operating said apparatus so that the potassium concentration of the wine in the dilution chamber falls to below 500 mg/liter and the potassium content of the wine in the concentration chamber is increased into the range 1000 to 2000 mg/liter; cooling the wine from the concentration chamber to below 10°C and adding tartaric acid crystals to said wine in order to adjust the pH into the range 2.8 to 3.2 thereby precipitating tartar; separating the tartar from the wine and admixing said wine with wine emerging from the dilution chamber of the electrodialysis apparatus in a ratio such that the potassium content of the resulting mixture is below 500 mg/liter.
Claim 2
Independent Claim
131 words
A method of treating wine, which comprises: introducing crude wine to both the dilution and concentration chambers of an electrodialysis apparatus; operating said apparatus so that the potassium concentration of the wine in the dilution chamber falls to below 500 mg/liter and the potassium content of the wine in the concentration chamber is increased into the range 1000 to 2000 mg/liter; cooling the wine from the concentration chamber to below 10°C and adding tartaric acid crystals to said wine in order to adjust the pH into the range 2.8 to 3.2 thereby precipitating tartar; separating the tartar from the wine and admixing said wine with wine emerging from the dilution chamber of the electrodialysis apparatus in a ratio such that the potassium content of the resulting mixture is below 500 mg/liter.
Claim 3
Dependent Claim
12 words
The method of claim 1, wherein the process is carried out continuously.
Claim 4
Dependent Claim
17 words
The method of claim 2, wherein the wine in the concentration chamber is subjected to continuous circulation.
Claim 5
Dependent Claim
16 words
The method of claim 1, wherein the electrodialysis is carried out at a temperature below 50°C.
Claim 6
Dependent Claim
20 words
The method of claim 4, wherein the electrodialysis is carried out at a temperature in the range 20° to 25°C.
Claim 7
Dependent Claim
31 words
The method of claim 1, wherein the concentration of potassium in the wine in the concentration chamber of the electrodialysis apparatus is raised to a level from 1400 to 1600 mg/l.
Claim 8
Dependent Claim
17 words
The method of claim 1, wherein the potassium content of the fluid product is below 400 mg/l.
Claim 9
Dependent Claim
47 words
The method of claim 1, wherein the wine from the concentration chamber, having had tartar removed therefrom, is mixed with wine from the dilution chamber in a ratio equal to that by which the crude wine was divided initially when passing into the concentration and dilution chambers.
Claim 10
Dependent Claim
9 words
The wine produced by the treatment of claim 1.
Claim 11
Dependent Claim
14 words
The wine of claim 9, having a potassium content of less than 500 mg/l.
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) | 1980-03-28 | 1980-09-27 | 1981-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-03-28 | 1984-09-27 | 1985-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-03-28 | 1988-09-27 | 1989-03-29 | $7700.00 | Window Closed / Lapsed |