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US 10,502,412 B2Granted
Device for indirect heating by radiation in the form of a radiant housing
AssigneeDrever International S.A.
InventorsAlexandre Lhoest, Olivier Pensis
Life of this patent
Estimating the term…
Abstract
The present disclosure relates to a device for indirect heating by radiation in the form of a radiant housing having two front walls and two side walls and comprising at least one heat source, said radiant housing having front walls joining one another such that the housing has a lenticular shape in cross-section.
Claims11
A furnace for the heat treatment of products or parts comprising:
- at least one device for indirect heating by radiation that includes a radiant housing having two front walls and two side walls and comprising at least one heat source, said radiant housing having front walls joining one another such that the housing has, in cross-section, a lenticular shape having a chord C, wherein said front walls come together at least at one end of said chord C of said lenticular shape while forming an edge or a slight flat in that location,
- wherein said at least one device for indirect heating by radiation includes first and second devices for indirect heating by radiation, each of said first and second devices having a center and a lenticular shape having a main curve radius R, the two centers of said first and second devices being separated by a pitch P, each main curve radius R of each of said first and second devices being such that a ratio between R and P is greater than 0.5.
A method of using a furnace, the method comprising:
- treating a product or part with at least one device for indirect heating by radiation, said at least one device including a radiant housing having two front walls and two side walls and comprising at least one heat source, said radiant housing having front walls joining one another such that the housing has, in cross-section, a lenticular shape having a chord C, wherein said front walls come together at least at one end of said chord C of said lenticular shape while forming an edge or a slight flat in that location,
- wherein said furnace comprises two said devices, each having a center and a lenticular shape having a main curve radius R, the two centers of said two devices being separated by a pitch P, each main curve radius R of each of said two devices being such that a ratio between R and P is greater than 0.5.
Dependencies are inferred from the claim text.