US2575276A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of minimizing foam production in steam generation
Assignee: ChampionX LLC
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Filing: 1948-08-03
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Granted: 1951-11-13
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Expires: 1968-08-03
Abstract
No abstract record available.
Inventors
- 👤 Arthur L Jacoby
- 👤 Jacklin Clarence
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 09:06
CPC Classifications
B; B01; B01B; B01B1/00; B01B1/02; B01B1/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
138 words
A PROCESS OF MINIMIZING THE PRODUCTION OF FOAM IN AND PRIMING OF STEAM GENERATORS OPERATING UNDER SUPERATMOSPHERIC PRESSURE CONDITIONS WHICH COMPRISES INCORPORATING WITH A WATER THEREIN CONTAINING AN AMOUNT OF TOTAL SOLIDS TENDING TO PRODUCE FOAMING AND PRIMING A QUANTITY OF A POLYOXYALKYLENE GLYCOL, WHEREIN THE ALKYLENE RADICALS ARE SELECTED FROM THE GROUP CONSISTING OF ETHYLENE, PROPYLENE, AND MIXTURES THEREOF, THE AVERAGE MOLECULAR WEIGHT OF SAID POLYOXYALKYLENE GLYCOL BEING AT LEAST ABOUT 1000 WHEN THE POLYOXYALKYLENE GLYCOL IS A POLYOXYPROPYLENE GLYCOL, AT LEAST APPROXIMATELT 6000 WHEN THE POLYOXYLKYLENE GLYCOL IS A POLYOXYETHYLENE GLYCOL AND A MINIMUM AVERAGE MOLECULAR WEIGHT BETWEEN 1000 AND 6000 WHEN THE POLYOXYALKYLENE GLYCOL CONTAINS BOTH OXYETHYLENE AND OXYPROPYLENE GROUPS, SAID POLYOXYALKYLENE GLYCOL BEING SUBSTANTIALLY INSOLUBLE IN SAID WATER UNDER SAID STEAM GENERATING CONDITIONS AND SAID QUANTITY BEING SUFFICIENT TO SUBSTANTIALLY INHIBIT FOAMING AND PRIMING.
Claim 2
Dependent Claim
138 words
A PROCESS OF MINIMIZING THE PRODUCTION OF FOAM IN AND PRIMING OF STEAM GENERATORS OPERATING UNDER SUPERATMOSPHERIC PRESSURE CONDITIONS WHICH COMPRISES INCORPORATING WITH A WATER THEREIN CONTAINING AN AMOUNT OF TOTAL SOLIDS TENDING TO PRODUCE FOAMING AND PRIMING A QUANTITY OF A POLYOXYALKYLENE GLYCOL, WHEREIN THE ALKYLENE RADICALS ARE SELECTED FROM THE GROUP CONSISTING OF ETHYLENE, PROPYLENE, AND MIXTURES THEREOF, THE AVERAGE MOLECULAR WEIGHT OF SAID POLYOXYALKYLENE GLYCOL BEING AT LEAST ABOUT 1000 WHEN THE POLYOXYALKYLENE GLYCOL IS A POLYOXYPROPYLENE GLYCOL, AT LEAST APPROXIMATELT 6000 WHEN THE POLYOXYLKYLENE GLYCOL IS A POLYOXYETHYLENE GLYCOL AND A MINIMUM AVERAGE MOLECULAR WEIGHT BETWEEN 1000 AND 6000 WHEN THE POLYOXYALKYLENE GLYCOL CONTAINS BOTH OXYETHYLENE AND OXYPROPYLENE GROUPS, SAID POLYOXYALKYLENE GLYCOL BEING SUBSTANTIALLY INSOLUBLE IN SAID WATER UNDER SAID STEAM GENERATING CONDITIONS AND SAID QUANTITY BEING SUFFICIENT TO SUBSTANTIALLY INHIBIT FOAMING AND PRIMING.
References Cited (Backward Citations)
US2453351A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-11-12 | 1955-05-14 | 1955-11-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-11-12 | 1959-05-14 | 1959-11-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-11-12 | 1963-05-14 | 1963-11-13 | $7700.00 | Window Closed / Lapsed |