Abstract: A solar collector assembly comprises a solar absorbing tube (1) having an evacuated radiation-transparent enclosure (8); a radiation absorber (10) within the tube (1), an elongate outer conduit (11) for a heat transfer medium extending through the tube (1), an inner conduit (12) extending through the outer conduit (11), and a manifold (2). The outer conduit (11) has an end region (5) extending into the manifold (2) so that passageway (13) defined between the outer conduit (11) and the inner conduit (12) is in fluid communication with the cold fluid passageway of the manifold (2). The inner conduit (12) extends beyond the end region (5) of the outer conduit (11) into the heated fluid passageway of the manifold (2). The solar collector also comprises a clip (20) for retaining the inner conduit (12) in spaced-apart relation to the end region (5) of the outer conduit (11). The clip (20) comprises a generally circular base (24) which engages with the inner surface of the end region (5) of the outer conduit (11).

Abstract: A pressure support system that comprises a patient circuit, a docking assembly, and a tank. The patient circuit delivers a pressurized flow of breathable gas to a patient. The docking assembly has an inlet and an outlet that is adapted to receive the pressurized flow of breathable gas, and is also adapted to be connected with the patient circuit. The tank is constructed and arranged to be removably connected with the docking assembly, and enables the pressurized flow of breathable gas to pass therethrough. The tank is also adapted to contain a liquid such that a humidity level of the pressurized flow of breathable gas is elevated as the pressurized flow of breathable gas passes therethrough.