Thermal effect reclaim device

Claim 1

A heat exchange device for use in combination with an air conditioning device to condition air to be supplied to a selected served space, the air conditioning device having a fresh air inlet, a recirculated air inlet and a conditioned air outlet communicating with the selected served space, said heat exchange device comprising: a first air passage means communicating with a source of fresh air and the fresh air inlet of said air conditioning device; a second air passage means communicating with served space to exhaust solely air from the served space; first heat exchange means disposed in heat exchange relation with air flowing through said first air passage; second heat exchange means disposed in heat exchange relation with air flowing through said second air passage; and, means to transfer the thermal effect from said first heat exchange meanS to said second heat exchange means including an endless belt of a porous web material extending from said first air passage to said second air passage and at least two rollers disposed along the inner surface of a loop formed by said endless belt to cooperatively engage said belt wherein said belt is continuously passed through said first air passage and said second air passage to transfer said thermal effect from said first air passage to said second air passage.