US2907689A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of controlling corrosion in a neutronic reactor
Assignee: Individual
•
Filing: 1949-10-24
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Granted: 1959-10-06
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Expires: 1969-10-24
Abstract
No abstract record available.
Inventors
- 👤 Calvin P Kidder
- 👤 Clifford K Sloan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:52
CPC Classifications
C; C23; C23F; C23F11/00; C23F11/08; C23F11/18; C23F11/187; C23F11/185; G; G21; G21C; G21C15/00; G21C15/28; Y; Y02; Y02E; Y02E30/00; Y02E30/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
82 words
A PROCESS FOR TREATING COOLANT WATER CONTAINING SUSPENDED SOLIDS TOGETHER WITH UP TO 1 P.P.M. OF IRON TO MINIMIZE CORROSION OF METAL SURFACES IN CONTACT WITH SAID WATER, WHEREIN SAID WATER IS CALCULATED IN AN OPEN SYSTEM, AND TO MINIMIZE DEPOSITION OF SOLIDS THEREFROM ON SAID METAL SURFACES, COMPRISING ADDING AN ALKALI METAL DICHROMATE IN AN AMOUNT SUFFICIENT TO BRING THE CONCENTRATION OF DICHROMATE IN SAID WATER SOLUTION TO BETWEEN 1.8 AND 2.2 P.P.M. AN ADJUSTING THE PH BETWEEN 7.3 AND 7.8.
Claim 2
Dependent Claim
82 words
A PROCESS FOR TREATING COOLANT WATER CONTAINING SUSPENDED SOLIDS TOGETHER WITH UP TO 1 P.P.M. OF IRON TO MINIMIZE CORROSION OF METAL SURFACES IN CONTACT WITH SAID WATER, WHEREIN SAID WATER IS CALCULATED IN AN OPEN SYSTEM, AND TO MINIMIZE DEPOSITION OF SOLIDS THEREFROM ON SAID METAL SURFACES, COMPRISING ADDING AN ALKALI METAL DICHROMATE IN AN AMOUNT SUFFICIENT TO BRING THE CONCENTRATION OF DICHROMATE IN SAID WATER SOLUTION TO BETWEEN 1.8 AND 2.2 P.P.M. AN ADJUSTING THE PH BETWEEN 7.3 AND 7.8.
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) | 1962-10-05 | 1963-04-06 | 1963-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-10-05 | 1967-04-06 | 1967-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-10-05 | 1971-04-06 | 1971-10-06 | $7700.00 | Window Closed / Lapsed |