Patent US3907486A successfully refreshed from Google Patents.
US3907486A
Expired / Lapsed
US
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Means for internally cooling briquetting machine rolls and segments
Assignee: United States Steel Corp
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Filing: 1974-10-21
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Granted: 1975-09-23
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Expires: 1994-10-21
Abstract
Abstract Roll-type briquetting machines employed for high temperature operations such as in the compaction and briquette making of heated, reduced iron ore are cooled by the use of a flexible internal cooling system employing water. The flexibility of the machine requires that mold segments be removable from the rolls. This system provides means for circulating water through the roll segments from a common source and maintaining uniform temperature on the surface of each segment on the rolls.
Inventors
- 👤 Frank Kennedy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 10:32
CPC Classifications
B; B30; B30B; B30B15/00; B30B15/34; B30B11/00; B30B11/16; B30B11/165
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
81 words
Apparatus for making reduced iron ore briquettes comprising a plurality of mold segments adapted to be placed on the periphery of a mold support, said mold segments having transverse passages for conducting water through them, and a mold support in the form of a roll adapted to accommodate a plurality of mold segments around its periphery, said mold support also having transverse passages for cooling water, and manifold means for circulating cooling water from the mold support to the mold segments.
Claim 2
Dependent Claim
81 words
Apparatus for making reduced iron ore briquettes comprising a plurality of mold segments adapted to be placed on the periphery of a mold support, said mold segments having transverse passages for conducting water through them, and a mold support in the form of a roll adapted to accommodate a plurality of mold segments around its periphery, said mold support also having transverse passages for cooling water, and manifold means for circulating cooling water from the mold support to the mold segments.
Claim 3
Dependent Claim
29 words
Apparatus of claim 1 including an axial passage in the core of the roll and a plurality of radial passages in said roll connected to the transverse passages therein.
Claim 4
Dependent Claim
18 words
Apparatus of claim 1 in which the manifolds include annular inlet and discharge passages on the mold support.
Claim 5
Dependent Claim
18 words
Apparatus of claim 1 in which the manifolds include distribution headers and discharge recesses for each mold segment.
Claim 6
Dependent Claim
15 words
Apparatus of claim 4 in which the headers and recesses are located in clamp rings.
Claim 7
Dependent Claim
15 words
Apparatus of claim 4 in which the headers and recesses are sealed by resilient gaskets.
Claim 8
Dependent Claim
44 words
A briquette mold roll comprising a roll support, a plurality of mold segments on the periphery thereof, said segments each containing at least three transverse passages therethrough, and means for circulating cooling water through the passages in the segments while the roll support turns.
Claim 9
Dependent Claim
44 words
A briquette mold roll comprising a roll support, a plurality of mold segments on the periphery thereof, said segments each containing at least three transverse passages therethrough, and means for circulating cooling water through the passages in the segments while the roll support turns.
Claim 10
Dependent Claim
77 words
A mold roll comprising a mold roll body, an axial pipe for introducing water thereto, radial water passages leaDing to the periphery thereof, an annular manifold therefor, means for directing water from said annular manifold to peripheral mold segments, means for receiving water from peripheral mold segments, an annular discharge manifold connected thereto, radial discharge passages leading from the discharge manifold toward the axial pipe, and a passageway concentric to said pipe for removing spent cooling water.
Claim 11
Dependent Claim
77 words
A mold roll comprising a mold roll body, an axial pipe for introducing water thereto, radial water passages leaDing to the periphery thereof, an annular manifold therefor, means for directing water from said annular manifold to peripheral mold segments, means for receiving water from peripheral mold segments, an annular discharge manifold connected thereto, radial discharge passages leading from the discharge manifold toward the axial pipe, and a passageway concentric to said pipe for removing spent cooling water.
Claim 12
Dependent Claim
38 words
Apparatus of claim 7 in which the means for circulating cooling water through the passages in the segments includes segment clamps having manifold recesses and means for conveying water to and from annular recesses in the mold roll.
Claim 13
Dependent Claim
28 words
Apparatus of claim 9 including radial passages for conveying water to and from the annular recesses and axial passages for conveying water to and from the radial passages.
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) | 1978-09-22 | 1979-03-24 | 1979-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-09-22 | 1983-03-24 | 1983-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-09-22 | 1987-03-24 | 1987-09-23 | $7700.00 | Window Closed / Lapsed |