Abstract: An umbrella having opposed moving hubs, one upper and one lower, to which is attached a series of spaced spars to the upper hub and a series of spaced ribs to the lower hub. The ribs are also connected one rib to one spar. An acme-threaded rod passes through an acme nut mounted on each hub, one left hand threaded and one right hand threaded, such that the rod, when connected to a drive shaft and gear motor, and actuated causes the hubs to move toward each other to close the umbrella and away from each other to open the umbrella. The umbrella is covered over by a canopy attached thereto.

Abstract: An openable and closeable umbrella having the appearance of a thatched South Sea Island or Caribbean umbrella, and the ability to shield the users of the umbrella from the sun. The umbrella features a circular one piece woven thatch overlaid upon a fabric umbrella canopy, which canopy is conventionally attached to the frame of the umbrella. The frame includes a series of spaced ribs attached to struts and a means to open and close the frame. The woven thatch is screwed or otherwise secured to the ribs of the frame through the canopy layer. Means are provided for raising and lowering the umbrella.