US2701239A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Steam generation and compositions for inhibiting foaming
Assignee: ChampionX LLC
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Filing: 1952-01-16
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Granted: 1955-02-01
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Expires: 1972-01-16
Abstract
No abstract record available.
Inventors
- 👤 John W Ryznar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:08
CPC Classifications
B; B01; B01B; B01B1/00; B01B1/02; B01B1/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
120 words
A METHOD OF GENERATING STEAM FROM A BOILER WATER HAVING A TENDENCY TO FOAM ON BOILING WHICH COMPRISES DISPERSING IN SAID WATER A QUANTITY OF AN ADDITION PRODUCT OF AN AMINE FROM THE GROUP CONSISTING OF PRIMARY AND SECONDARY AMINES AND AN ALKYLENE OXIDE FROM THE GROUP CONSISTING OF ETHYLENE OXIDE, 1,2-PROPYLENE OXIDE AND MIXTURES OF BOTH ETHYLENE OXIDE AND 1,2-PROPYLENE OXIDE, THE AVERAGE MOLECULAR WEIGHT OF SAID ADDITION PRODUCT BEING AT LEAST 1200 AND SAID ADDITION PRODUCT BEING SUBSTANTIALLY INSOLUBLE IN SAID BOILER WATER AT THE TEMPERATURE OF STEAM GENERATION, THE QUANTITY OF SAID ADDITION PRODUCT BEING EFFECTIVE TO INHIBIT THE TENDENCY OF SAID WATER TO FOAM ON BOILING, AND HEATING THE RESULTANT AQUEOUS DISPERSION TO THE BOILING POINT.
Claim 2
Independent Claim
120 words
A METHOD OF GENERATING STEAM FROM A BOILER WATER HAVING A TENDENCY TO FOAM ON BOILING WHICH COMPRISES DISPERSING IN SAID WATER A QUANTITY OF AN ADDITION PRODUCT OF AN AMINE FROM THE GROUP CONSISTING OF PRIMARY AND SECONDARY AMINES AND AN ALKYLENE OXIDE FROM THE GROUP CONSISTING OF ETHYLENE OXIDE, 1,2-PROPYLENE OXIDE AND MIXTURES OF BOTH ETHYLENE OXIDE AND 1,2-PROPYLENE OXIDE, THE AVERAGE MOLECULAR WEIGHT OF SAID ADDITION PRODUCT BEING AT LEAST 1200 AND SAID ADDITION PRODUCT BEING SUBSTANTIALLY INSOLUBLE IN SAID BOILER WATER AT THE TEMPERATURE OF STEAM GENERATION, THE QUANTITY OF SAID ADDITION PRODUCT BEING EFFECTIVE TO INHIBIT THE TENDENCY OF SAID WATER TO FOAM ON BOILING, AND HEATING THE RESULTANT AQUEOUS DISPERSION TO THE BOILING POINT.
References Cited (Backward Citations)
US2233383A
Cited
US2575276A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-01-31 | 1958-08-02 | 1959-02-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-01-31 | 1962-08-02 | 1963-02-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-01-31 | 1966-08-02 | 1967-02-01 | $7700.00 | Window Closed / Lapsed |