US3580331A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for annealing with accelerated cooling
Assignee: Ford Motor Co
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Filing: 1969-05-23
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Granted: 1971-05-25
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Expires: 1989-05-23
Abstract
Abstract Apparatus for cooling stacked coils of steel sheet from an annealing temperature at an accelerated rate. A hood is provided for sealing the coils from the oxidizing ambient atmosphere during the period when the coils are heated. Within the hood means, cooling separator structures are placed in contact with the planar coil surfaces. These separators include weight bearing members used to support the coils and provide space for closed fluid conduits. These conduits are interposed between, under and atop the coils in intimate contact with the planar surfaces of the coils. This arrangement provides for conductive heat transfer from the coils to coolant circulated in the fluid conduits without causing oxidation of the coils.
Inventors
- 👤 William Wargo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 20:29
CPC Classifications
C; C21; C21D; C21D1/00; C21D1/84
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
124 words
Apparatus for cooling from an annealing temperature a massive cylindrical coil of steel sheet, said coil being positioned on one of its planar surfaces on supporting base means, said apparatus including: hood means surrounding said coil and capable of sealing said coil against the ambient atmosphere such that the coil may be surrounded by a nonoxidizing atmosphere; weightbearing means interposed between said one planar surface of said coil and said base means and maintaining said planar surface at a predetermined distance from said base means; at least said weight-bearing means and said planar surface cooperating to define a space beneath said coil; and closed fluid circuit means capable of conducting fluid coolant, positioned in said space and in intimate contact with said planar surface.
Claim 2
Dependent Claim
124 words
Apparatus for cooling from an annealing temperature a massive cylindrical coil of steel sheet, said coil being positioned on one of its planar surfaces on supporting base means, said apparatus including: hood means surrounding said coil and capable of sealing said coil against the ambient atmosphere such that the coil may be surrounded by a nonoxidizing atmosphere; weightbearing means interposed between said one planar surface of said coil and said base means and maintaining said planar surface at a predetermined distance from said base means; at least said weight-bearing means and said planar surface cooperating to define a space beneath said coil; and closed fluid circuit means capable of conducting fluid coolant, positioned in said space and in intimate contact with said planar surface.
Claim 3
Dependent Claim
34 words
Apparatus according to claim 1 wherein said weight-bearing means comprises a plate having at least one groove formed in the top surface thereof, said fluid circuit being at least partially located in said groove.
Claim 4
Dependent Claim
26 words
Apparatus according to claim 1, said coil being one of a plurality of coils vertically stacked such that the planar surfaces of the coils are contiguous.
Claim 5
Dependent Claim
47 words
Apparatus according to claim 3, wherein said weight-bearing means comprise plural plate segments positioned between adjacent coils is spaced-apart relationship and having a thickness corresponding to said predetermined distance, said circuit means being positioned between said segments and having a thickness substantially the same as said segments.
Claim 6
Dependent Claim
30 words
Apparatus according to claim 1 and further including a second closed fluid capable of conducting fluid coolant and resting in intimate engagement on the other planar surface of said coil.
Claim 7
Dependent Claim
31 words
Apparatus according to claim 5, wherein said second fluid circuit comprises a length of tubing arranged in the form of a spiral, said spiral being coextensive with said other planar surface.
Claim 8
Dependent Claim
104 words
Apparatus for cooling from annealing temperatures massive cylindrical coils of steel sheet, said coils being vertically stacked such that the planar surfaces of the cylindrical coils are contiguous, said apparatus including: hood means surrounding said coils and sealing said coils against the ambient atmosphere such that the coils may be surrounded by a nonoxidizing atmosphere; separator means interposed between adjacent coils and maintaining the adjacent coils a predetermined distance apart; closed fluid circuit means capable of conducting fluid coolant, interposed between adjacent stacked coils and of a size such that said conduit means simultaneously are in intimate contact with both of adjacent stacked coils.
Claim 9
Dependent Claim
104 words
Apparatus for cooling from annealing temperatures massive cylindrical coils of steel sheet, said coils being vertically stacked such that the planar surfaces of the cylindrical coils are contiguous, said apparatus including: hood means surrounding said coils and sealing said coils against the ambient atmosphere such that the coils may be surrounded by a nonoxidizing atmosphere; separator means interposed between adjacent coils and maintaining the adjacent coils a predetermined distance apart; closed fluid circuit means capable of conducting fluid coolant, interposed between adjacent stacked coils and of a size such that said conduit means simultaneously are in intimate contact with both of adjacent stacked coils.
Claim 10
Dependent Claim
47 words
Apparatus according to claim 7, wherein said separator means comprise plural, separator segments positioned between adjacent coils in spaced-apart relationship and having a thickness corresponding to said predetermined distance, said circuit means being positioned between said segments and having a thickness substantially the same as said segments.
Claim 11
Dependent Claim
55 words
Apparatus according to claim 7 and further including weight-bearing means located beneath the bottom coil of said stacked coils, a portion of said weight-bearing means and the bottom planar surface of said bottom coil defining therebetween a cavity, and second closed fluid circuit means positioned in said cavity for facilitating cooling of said bottom coil.
Claim 12
Dependent Claim
17 words
Apparatus according to claim 7, wherein said separator means and said fluid circuit means are integrally formed.
Claim 13
Dependent Claim
32 words
Apparatus according to claim 10, said separator means comprising a plate having a thickness corresponding to said predetermined distance, said fluid circuit means comprising at least one passageway formed in said plate.
References Cited (Backward Citations)
US1952402A
Cited
US2201308A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-05-24 | 1974-11-23 | 1975-05-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-24 | 1978-11-23 | 1979-05-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-24 | 1982-11-23 | 1983-05-25 | $7700.00 | Window Closed / Lapsed |