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US 4,044,443 AGranted
Method for assembling tubes and tube plates and product resulting therefrom
AssigneeSociete Anonyme des Usines Chausson
InventorAndre Chartet
Life of this patent
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Abstract
Tube passages slightly bigger than the tubes are formed in a plate. A soft resilient sheet is placed on one side of the plate. The tube is forcibly inserted in the tube passages and draws a portion of the sheet which is then cut. In the assembly of the sheet, which has a bigger thickness than the interval between the tube and the tube passage, forms a flange beyond the tube plate.
Claims7
A method of assembling at least one tube having an outer wall in a tube plate comprising the steps of:
- forming at least one tube passage in said plate, said tube passage having a shape corresponding to that of said tube and a cross-section slightly greater than that of said tube;
- placing a flexible, resilient sheet of substantially uniform thickness on one side of and in a planar coextensive relationship with said tube plate;
- bringing an end of said tube into contact with said flexible, resilient sheet;
- forcibly inserting said tube while in contact with said flexible, resilient sheet into said tube passage of said tube plate and beyond, a portion of said flexible, resilient sheet thus covering an end portion of said tube which extends beyond said plate;
- and
- cutting said portion of said sheet, whereby the inner stress of the material constituting said sheet restricts said portion of said sheet extending beyond said tube plate while forming a stressed flange pressing said outer wall of said tube and bearing on said tube plate.
3 more elements
Dependencies are inferred from the claim text.