Abstract: A fluid coupler for hydronic solar panels, framed with a rigid frame that, when engaged includes a male coupling rigidly attached to a first manifold pipe. The male coupling has a sealing face perpendicular to a longitudinal axis of the first manifold pipe. The coupler includes a female coupling rigidly attached to a second manifold pipe. The female coupling has a sealing face perpendicular to a longitudinal axis of the second manifold pipe and includes a coupling nut longitudinally constrained along and freely rotatable around the axis of the second manifold pipe.

Abstract: A water purifier includes a first crystallization chamber and a second crystallization chamber that each receives a supply of input water; wherein each of the first and second crystallization chambers is a freeze/thaw chamber in which water is alternately frozen and thawed. A refrigerant circuit alternately supplies cold refrigerant to freeze the input water in one of the crystallization chambers, and supplies heated refrigerant to the other of the crystallization chambers to thaw the purified water. The first and second crystallization chambers operate concurrently and out-of-phase whereby heat recovered from freezing in one of the crystallization chambers is transferred by the refrigerant circuit for use in thawing in the other of the crystallization chambers.

Abstract: An apparatus extracts water from the air using a single circuit of gas containing a compressor, a cooling element, a heat exchanger and an ion source, where a single stream of air is used to provide water and to pre-cool the inlet air.