Radiators

Claim 1

A RADIATOR COMPRISING SPACED TANKS, EACH HAVING HEADER PORTIONS, A CORE INCLUDING A PLURALITY OF INDEPENDENT TUBES HAVING AN ELONGATED CROSS-SECTION, SAID TUBES BEING POSITIONED BETWEEN SAID HEADERS AND BEING GROUPED IN ROWS AT THE FRONT BACK OF THE CORE WITH THEIR NARROW DIMENSIONS DISPOSED TRANSVERSELY, AND CONTINUOUS FINS OF ZIG-ZAG FORMATION CONSISTING OF CREST PORTIONS AND RELATIVELY PLANAR FOLDS, A PLURALITY OF SLITS FORMED IN EACH OF SAID FOLDS, SAID SLITS BEING DISPOSED RELATIVELY PERPENDICULAR TO SAID CREST PORTIONS AND HAVING PORTIONS OFFSET RELATIVE TO THE PLANAR FOLDS, AND CORRUGATIONS OF FINE PITCH FORMED IN SAID FINS IN THE MARGINAL PORTIONS OF THE FOLDS THEREOF DISPOSED SUBSTANTIALLY PARALLEL TO EACH OTHER AND TO SAID CREST PORTIONS, AND RIBS FORMED IN EACH SLIT PORTION OF SAID FOLDS, SAID RIBS BEING DISPOSED SUBSTANTIALLY PARALLEL TO SAID SLIT PORTIONS, SAID TUBES BEING SOLDER COATED TO PERMIT BONDING OF THE TUBES TO THE FINS UPON APPLICATION OF HEAT.