Patent US5245703A successfully refreshed from Google Patents.
Patent US2562739A successfully refreshed from Google Patents.
US2562739A
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US
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Evaporating apparatus
Assignee: Alfa Laval Holdings Amsterdam AB
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Filing: 1948-01-02
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Granted: 1951-07-31
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Expires: 1968-01-02
Abstract
Abstract <PICT:0642166/III/1> An evaporator for whey and similar liquids comprises an evaporation chamber 8, Fig. 1, under reduced pressure, communicating with a plate heater 3, 4, 5. The latter comprises a set of plates 4 in which the whey is heated and circulated to and from the evaporation chamber, and a set of plates 3 in which fresh whey is preheated by condensate from the set of plates 5 in which the evaporated vapours are condensed. The evaporated product is withdrawn batchwise or continuously from pipe 27.
Inventors
- 👤 Risberg Johannes Valdem Marten
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 06:08
CPC Classifications
F; F28; F28F; F28F3/00; F28F3/08; F28F3/083; A; A23; A23C; A23C1/00; A23C1/12; B; B01; B01D; B01D1/00; B01D1/22; B01D1/28; B01D1/2803; F28D; F28D21/00; F28D2021/0019; F28D2021/0061; F28D2021/0066
Claims Analysis
Total Claims: 0
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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) | 1954-07-30 | 1955-01-29 | 1955-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-07-30 | 1959-01-29 | 1959-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-07-30 | 1963-01-29 | 1963-07-31 | $7700.00 | Window Closed / Lapsed |