F - Mech Eng,Light,Heat,Weapons – 28 – F
Patent
F - Mech Eng,Light,Heat,Weapons
28
F
257/20
F28F 1/08 (2006.01)
Patent
CA 1121337
ABSTRACT OF THE DISCLOSURE There is provided a heat-exchange element of generally cylindrical configuration, capable of being manufactured from a single sheet of metal. The element includes a central portion with accordionated walls defining outwardly open V-shaped channels, between which are located inwardly open V-shaped channels. One end of the element is a female end for receiving a cylindrical pipe, the female end being defined by a plurality of first segments which merge with the apical portions of the outwardly open V-shaped channels. This leaves radially outwardly projecting ridges, the margins of which-are made gas-tight. The other end provides a male end adapted to be received within the end of a cylindrical member, the male end being defined by second segments, each of which is con- tinuous with and merges with the apical portion of one of the inwardly open V-shaped channels. The apical portions of the outwardly open V-shaped channels become, in the latter end portion, a radially inwardly projecting ridge of which the end margins are rendered substantially gas-tight.
357103
Hermann John
Sim & Mcburney
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