Patent ID: 6935415

Claim:
A heat exchanger plate for use in combination with a gasket in a plate-type heat exchanger, said plate comprising a gasket groove formed by an indentation that extends through at least portion of the heat exchanger plate spaced from the periphery of the plate, a plurality of expanded groove portions disposed in substantially the same plane as said gasket groove at spaced intervals, a first ridged, tongue-like portion disposed in each of the expanded groove portions extending upwardly from the gasket groove, said first tongue-like portion formed by cutting and ridging of the heat exchanger plate to expose first and second openings on the respective sides of said first tongue-like portion substantially perpendicular to the longitudinal direction of the gasket groove, said gasket including a plurality of coupling elements, each of said coupling elements configured to be received in a respective one of said expanded groove portions and engaged by said first tongue-like portion.