US3061478A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Prevention of scale formation in evaporation of liquids
Assignee: Hodag Chemical Corp
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Filing: 1959-12-14
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Granted: 1962-10-30
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Expires: 1979-12-14
Abstract
No abstract record available.
Inventors
- 👤 Sheldon E Kent
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 01:38
CPC Classifications
B; B01; B01D; B01D1/00; B01D1/26; Y; Y10; Y10S; Y10S159/00; Y10S159/13
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
78 words
A PROCESS OF REDUCING SCALE FORMATION IN EVAPORA TORS IN WHICH DILUTE SOLUTIONS OF SUBSTRATES ARE HEATED IN EVAPORATORS TO EFFECT A CONCENTRATION OF SAID SUBSTRATES IN SAID SOLUTION BUT NOT TO THE EXTENT OF EFFECTING APPRECIABLE SEPARATION OF SOLIDS FROM SAID SOLUTIONS IN SAID EVAPORATOR, WHICH COMPRISES CARRYING OUT SAID EVAPORATION IN THE PRESENCE OF A FATTY ACID ESTER OF A GLYCOSIDE, THE ACID ACYL RADICAL OF SAID ESTER CON- CONTAINING FROM 8 TO 22 CARBON ATOMS.
Claim 2
Dependent Claim
78 words
A PROCESS OF REDUCING SCALE FORMATION IN EVAPORA TORS IN WHICH DILUTE SOLUTIONS OF SUBSTRATES ARE HEATED IN EVAPORATORS TO EFFECT A CONCENTRATION OF SAID SUBSTRATES IN SAID SOLUTION BUT NOT TO THE EXTENT OF EFFECTING APPRECIABLE SEPARATION OF SOLIDS FROM SAID SOLUTIONS IN SAID EVAPORATOR, WHICH COMPRISES CARRYING OUT SAID EVAPORATION IN THE PRESENCE OF A FATTY ACID ESTER OF A GLYCOSIDE, THE ACID ACYL RADICAL OF SAID ESTER CON- CONTAINING FROM 8 TO 22 CARBON ATOMS.
References Cited (Backward Citations)
US2591704A
Cited
US2871148A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-10-29 | 1966-04-30 | 1966-10-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-10-29 | 1970-04-30 | 1970-10-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-10-29 | 1974-04-30 | 1974-10-30 | $7700.00 | Window Closed / Lapsed |