Abstract: A flow device for a refrigerant/compressor system is installed between the outlet of an evaporator and the suction port of a compressor. The device includes a floating element that helps inhibit liquid refrigerant from entering the compressor. Under certain conditions where liquid refrigerant discharges from the evaporator, the floating element floats in the discharged liquid. Upon doing so, the float rises to a generally closed position where the float obstructs a main fluid outlet that leads to the compressor. In the closed position, refrigerant can still pass through the flow device, but through a more restricted outlet. To prevent the float from undesirably rising under the impetus of refrigerant vapor flowing at high flow rates, the floating element itself includes a flow-restricting passageway, radial guides, and/or a streamlined shape. The float can be incorporated within a manifold of a multi-coil or multi-circuited heat exchanger.

Abstract: A post structure which includes a support pole, a casing, and spring clips for securing the casing to the pole. The spring clips each include a spiral portion which grips the pole, and arms which project outward to engage the inner sidewalls of the casing. The spring clips are constructed to permit the casing to be moved downwardly over the spring clips during installation. However, the spring clips effectively anchor the casing to the pole to prevent any upward movement of the casing for removal.