DEVICE FOR TRANSMITTING HEATING OR COOLING MEDIUM TO A SUBSTRATE AND AN IMPINGEMENT TYPE FREEZER CONTAINING THE SAME

摘要

A device for transmitting a heating or cooling mediumto a moving substrate which includes at least one continuouschannel traversing at least a major portion of the width of themoving substrate for converting a multidirectional flow of theheating or cooling medium into a unidirectional flow, a devicefor removing and/or preventing the presence of foreign matterwithin the channel, and ovens and freezers employing the same.