Patent US3801265A successfully refreshed from Google Patents.
US3801265A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Furnace and cooling control therefor
Assignee: Andritz Metals Inc
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Filing: 1972-12-06
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Granted: 1974-04-02
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Expires: 1992-12-06
Abstract
Abstract A furnace cooling control apparatus provided by a plurality of water-cooled panels supported within a furnace above a conveyor used to transport heated workpieces along the furnace hearth. The panels are arranged in an edge-to-edge relationship along the length of the furnace with pairs of panels arranged end-to-end across the width of the furnace. A drive connected to a centrally-located shaft on each panel independently, or if required a group of panels, rotates the panels to expose a portion or the entire area of either an insulated face on one side of the panel for slow cooling or a water-cooled face on the other side of the panel for fast cooling. A temperature control system is connected to the drive for adjusting each panel or a group of panels position to maintain a desired cooling rate of the workpieces.
Inventors
- 👤 F Bricmont
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:49
CPC Classifications
C; C21; C21D; C21D1/00; C21D1/84
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
98 words
A cooling control apparatus in combination with a furnace or the like having a hearth for supporting heated workpieces, said apparatus comprising: a plurality of panels arranged from said hearth in a spacedapart relationship thereto, means for rotatably supporting said panels within said furnace, fluid conduit means for cooling a surface on one side of said panels, insulating means on the surface of the panel opposite said fluid cooled surface, and drive means for rotatably positioning said panels within an arcuate path of travel to selectively expose said surfaces to said workpieces according to a desired cooling rate.
Claim 2
Dependent Claim
98 words
A cooling control apparatus in combination with a furnace or the like having a hearth for supporting heated workpieces, said apparatus comprising: a plurality of panels arranged from said hearth in a spacedapart relationship thereto, means for rotatably supporting said panels within said furnace, fluid conduit means for cooling a surface on one side of said panels, insulating means on the surface of the panel opposite said fluid cooled surface, and drive means for rotatably positioning said panels within an arcuate path of travel to selectively expose said surfaces to said workpieces according to a desired cooling rate.
Claim 3
Dependent Claim
26 words
An apparatus according to claim 1 further comprising conveyor means for transferring heated workpieces continuously along said furnace hearth at a spaced relation from said panels.
Claim 4
Dependent Claim
32 words
An apparatus according to claim 2 wherein at least two of said panelS are supported by said means for rotatably supporting in an edge-to-edge relationship along the length of the cooling furnace.
Claim 5
Dependent Claim
33 words
An apparatus according to claim 3 wherein a pair of said panels is supported by said means for rotatably supporting to extend in an end-to-end relationship across the width of said cooling furnace.
Claim 6
Dependent Claim
39 words
An apparatus according to claim 4 wherein said means for rotatably supporting said panels includes a plate member projecting from the roof of said furnace for rotatably supporting adjacent ends of said panels while arranged in said end-to-end relationship.
Claim 7
Dependent Claim
32 words
An apparatus according to claim 1 further comprising temperature measuring means for workpieces supported on said furnace hearth, and control means responsive to said temperature measuring means for energizing said drive means.
Claim 8
Dependent Claim
24 words
An apparatus according to claim 1 wherein said fluid coolant means includes longitudinal ducts arranged at spaced intervals across the width of each panel.
Claim 9
Dependent Claim
30 words
An apparatus according to claim 7 wherein said insulation means is further defined to include a fibrous mat of heat insulating material having a working temperature range up to 2200*F.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-04-01 | 1977-10-01 | 1978-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-04-01 | 1981-10-01 | 1982-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-04-01 | 1985-10-01 | 1986-04-02 | $7700.00 | Window Closed / Lapsed |