US3778043A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for the cooling of bodies under protective gas
Assignee: Ludwig-Ofag-Indugas Ind GmbH
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Filing: 1972-07-28
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Granted: 1973-12-11
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Expires: 1992-07-28
Abstract
Abstract A system for the cooling of metallurgical workpieces and other singular bodies under a protective gas (i.e., a non-oxidizing or reducing gas) has a pair of cooling registers forming the walls flanking the path of the workpiece and consisting of ducts through which a cooling fluid passes transverse to the direction of flow of the protective gas. The latter passes into the cooling chamber from below after a traversing a pair of heat exchangers of the tube-bank type while a control arrangement responsive to the mean value of the radiant energy omitted from the body serves to advance the workpiece from the chamber when a predetermined threshold value is attained.
Inventors
- 👤 T Busch
- 👤 R Dienst
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 18:38
CPC Classifications
C; C21; C21D; C21D1/00; C21D1/84
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
128 words
An apparatus for the cooling of singular bodies, comprising a housing forming a cooling chamber; transport means for advancing a singular body to be cooled into said chamber and out of said chamber; a pair of radiation coolers forming walls of said chamber and flanking a singular body within said chamber; circulating means for passing the protective gas upwardly through said chamber along one side of the radiant coolers and downwardly along the opposite side of said radiant coolers in respective flow passages; respective tube-bundle heat exchangers for cooling said protective gas; and radiant-energy detecting means in said chamber trained on the singular body therein and responsive to the mean energy radiated therefrom for actuating said transport means upon said mean radiant energy attaining a predetermined threshold value.
Claim 2
Independent Claim
128 words
An apparatus for the cooling of singular bodies, comprising a housing forming a cooling chamber; transport means for advancing a singular body to be cooled into said chamber and out of said chamber; a pair of radiation coolers forming walls of said chamber and flanking a singular body within said chamber; circulating means for passing the protective gas upwardly through said chamber along one side of the radiant coolers and downwardly along the opposite side of said radiant coolers in respective flow passages; respective tube-bundle heat exchangers for cooling said protective gas; and radiant-energy detecting means in said chamber trained on the singular body therein and responsive to the mean energy radiated therefrom for actuating said transport means upon said mean radiant energy attaining a predetermined threshold value.
Claim 3
Dependent Claim
37 words
The apparatus defined in claim 1 wherein said tube-bundle heat exchangers are disposed in said passages, said protective gas traversing said tube bundle heat exchangers in a direction perpendicular to the direction of coolant fluid flow therethrough.
Claim 4
Dependent Claim
27 words
The apparatus defined in claim 2 wherein said radiant coolers partition said passages and said heat exchangers are disposed at the same level as said radiant coolers.
Claim 5
Dependent Claim
17 words
The apparatus defined in claim 3 wherein the radiant coolers and said heat exchangers are individually controllable.
Claim 6
Dependent Claim
32 words
The apparatus defined in claim 3 wherein said detecting means includes at least one radiation parameter having a detecting angle encompassing all of said body, trained upon said body in said chamber.
Claim 7
Dependent Claim
14 words
The apparatus defined in claim 5 wherein said pyrometer is disposed above said body.
Claim 8
Dependent Claim
49 words
The apparatus defined in claim 6 wherein said walls are vertical, said transport means includes a horizontal rail arrangement extending through said chamber, said radiant coolers and said heat exchangers are provided with horizontal pipes traversed by cooling air and a protective gas-circulating blower is disposed above said chamber.
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) | 1976-12-10 | 1977-06-11 | 1977-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-10 | 1981-06-11 | 1981-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-10 | 1985-06-11 | 1985-12-11 | $7700.00 | Window Closed / Lapsed |