Patent US3704747A successfully refreshed from Google Patents.
US3704747A
Expired / Lapsed
US
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Evaporative cooling of metallurgical furnaces
Assignee: VNI I PI OCHISTKE TEKHNOLOGRCH
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Filing: 1970-09-30
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Granted: 1972-12-05
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Expires: 1990-09-30
Abstract
Abstract A device for evaporative cooling of metallurgical furnaces, wherein cooling members are interconnected and each member has at least two rows of coils for passing the coolant arranged in parallel relationship to the working surface of the cooling member and along the width of the cooling member.
Inventors
- 👤 Sergei Mikhailovich Andoniev
- 👤 Petr Georgievich Zhigulev
- 👤 Gennady Alexandrovich Kudinov
- 👤 Oleg Vladimirovich Filipiev
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 07:48
CPC Classifications
C; C21; C21B; C21B7/00; C21B7/10; F; F28; F28D; F28D7/00; F28D7/0041; F28D7/08; F28D7/082
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
85 words
A device for evaporative cooling of metallurgical furnaces, preferably of blast furnaces, comprising cooling members with pipes for passing the coolant interconnected in series and facing the furnace with its working surface, said pipes being made as coils arranged in at least two rows in each cooling member so that their longitudinal axes lie in planes parallel to the working surface of the cooling member, the loops of the coils being arranged along the width of the cooling member transversely to the longitudinal axis thereof.
Claim 2
Independent Claim
85 words
A device for evaporative cooling of metallurgical furnaces, preferably of blast furnaces, comprising cooling members with pipes for passing the coolant interconnected in series and facing the furnace with its working surface, said pipes being made as coils arranged in at least two rows in each cooling member so that their longitudinal axes lie in planes parallel to the working surface of the cooling member, the loops of the coils being arranged along the width of the cooling member transversely to the longitudinal axis thereof.
Claim 3
Dependent Claim
36 words
A device as claimed in claim 1, wherein in each said cooling member the loops of the coil disposed in one row are mutually shifted relative to the loops of the coil of the other row.
Claim 4
Dependent Claim
25 words
A device as claimed in claim 1, wherein the coils of the cooling members in the rows equally spaced from their working surface are interconnected.
Claim 5
Dependent Claim
77 words
A device as claimed in claim 1, wherein the coil of the preceding cooling member which is disposed nearer to its working surface is connected to the coil of the successive cooling member which is disposed farther away from its working surface, and the coil of the preceding cooling member which is disposed farther away from its working surface is connected with the coil of the successive cooling member which is disposed nearer to its working surface.
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) | 1975-12-05 | 1976-06-05 | 1976-12-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-12-05 | 1980-06-05 | 1980-12-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-12-05 | 1984-06-05 | 1984-12-05 | $7700.00 | Window Closed / Lapsed |