US3258060A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for descaling an evaporator effect
Assignee: Chicago Bridge and Iron Co
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Filing: 1964-06-01
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Granted: 1966-06-28
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Expires: 1984-06-01
Abstract
No abstract record available.
Inventors
- 👤 Anthony N Chirico
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:16
CPC Classifications
B; B01; B01D; B01D1/00; B01D1/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
129 words
IN A METHOD OF EVAPORATING A SCALE-FORMING LIQUOR IN A MULTIPLE EFFECT EVAPORATOR WHEREIN A VAPOR CONDENSATE IS PRODUCED, THE IMPROVEMENT WHICH COMPRISES BYPASSING SAID LIQUID AROUND AN EVAPORATOR EFFECT I TO ANOTHER EFFECT II WHILE CONTINUING TO CONDUCT VAPOR FROM AN EFFECT OTHER THAN I AND AT A TEMPERATURE HIGHER THAN THE LATTER TO THE VAPOR SIDE OF EFFECT I AND MAINTAINING THE REMAINDER OF THE EVAPORATOR ON STREAM, CONDUCTING SAID VAPOR CONDENSATE FROM THE VAPOR SIDE OF SAID EVAPORATOR EFFECT II, SAID VAPOR CONDENSATE BEING AT A LOWER TEMPERATURE THAN THE VAPOR IN THE VAPOR SIDE OF EFFECT I, TO THE LIQUOR SIDE OF EVAPORATOR EFFECT I, AND BOILING SAID VAPOR CONDENSATE IN CONTACT WITH SAID LIQUOR SIDE OF EVAPORATOR EFFECT I TO REMOVE SCALE FORMED THEREON.
Claim 2
Dependent Claim
129 words
IN A METHOD OF EVAPORATING A SCALE-FORMING LIQUOR IN A MULTIPLE EFFECT EVAPORATOR WHEREIN A VAPOR CONDENSATE IS PRODUCED, THE IMPROVEMENT WHICH COMPRISES BYPASSING SAID LIQUID AROUND AN EVAPORATOR EFFECT I TO ANOTHER EFFECT II WHILE CONTINUING TO CONDUCT VAPOR FROM AN EFFECT OTHER THAN I AND AT A TEMPERATURE HIGHER THAN THE LATTER TO THE VAPOR SIDE OF EFFECT I AND MAINTAINING THE REMAINDER OF THE EVAPORATOR ON STREAM, CONDUCTING SAID VAPOR CONDENSATE FROM THE VAPOR SIDE OF SAID EVAPORATOR EFFECT II, SAID VAPOR CONDENSATE BEING AT A LOWER TEMPERATURE THAN THE VAPOR IN THE VAPOR SIDE OF EFFECT I, TO THE LIQUOR SIDE OF EVAPORATOR EFFECT I, AND BOILING SAID VAPOR CONDENSATE IN CONTACT WITH SAID LIQUOR SIDE OF EVAPORATOR EFFECT I TO REMOVE SCALE FORMED THEREON.
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) | 1969-06-27 | 1969-12-27 | 1970-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-27 | 1973-12-27 | 1974-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-27 | 1977-12-27 | 1978-06-28 | $7700.00 | Window Closed / Lapsed |