Abstract: A compressed air energy storage system including a subterranean cavern, a ground level reservoir, a generally vertical shaft and a tunnel connecting the cavern and the lower end of the shaft is disclosed. Air bubbles which form in and rise through the water in the shaft are concentrated at the center of the shaft to thereby form a substantially air free water column in the shaft to insure a constant hydrostatic head in the cavern. The air bubbles are concentrated by imparting a spiral motion to the air bubble/water mixture, primarily with a number of nozzles which inject water into the shaft. Spiral vanes mounted along the interior surface of the shaft, but leaving the shaft substantially unobstructed, aid in imparting rotary motion to the mixture. The bubbles rise along the axis of the shaft and are discharged into the atmosphere. A number of bypass passages parallel the upper region of the shaft and fluidly connect the reservoir with openings in the shaft located a short distance above the nozzles.

Abstract: This invention relates to removeable article support devices in general, and more specifically to a resilient article support device which is designed to cooperate with an interior car molding, to provide a moveable article support, which can be positioned at the location of greatest convenience for the particular end user.