Patent ID: 7380773
Filing Date: 2008-06-03
Classification: F28C,F28D,F28F

Abstract:
1. A gas and heat exchange apparatus for a hydroponic system, including a. at least one conduit leading to a storage tank or hydroponic apparatus, b. at least one substantially vertical elongate hollow member, c. a plurality of internal members spaced inside the at least one hollow member, each internal member having at least one opening through which at least one fluid may flow, d. means for gas intake and exhaust in fluid connection with the at least one hollow member, e. means for draining the at least one hollow member into the at least one conduit and f. a means for adding liquid to the upper end of the at least one hollow member, wherein each internal member is substantially disc-shaped with an outer edge and the outer edges of each internal member are in substantially fluid tight connection with an internal surface of the at least one hollow member in which they are located.