Patent ID: 7909048

Claim:
A group of pneumatic umbrellas comprising: a plurality of pneumatic umbrellas connected to each other, wherein each pneumatic umbrella comprises: a mast formed by hollow tubular portions encapsulated in one another, the mast having a first end and a second end; a disc-shaped piece connected to the second end of the mast of each umbrella, wherein the disc-shaped piece includes air orifices to furl and unfurl a fabric covering; and a head connected to the disc-shaped piece, wherein the head comprises radial arcs made of a flexible plastic material, wherein the radial arcs include a plurality of orifices having bellows or tapering surfaces; a longitudinal conduit to connect the plurality of umbrellas, the longitudinal conduit having a first end, a second end, and a plurality of openings, wherein the first end of the mast of one umbrella is inserted on each opening; a valve to control a flow of air, the valve connected to one end of the longitudinal conduit; wherein the valve includes a hollow case having an inlet and an outlet air orifices defining compensatory conduits; a piston disposed in the case, the piston having longitudinal and transversal passages; wherein during the furl of the umbrella, the piston passages coincide with a passage connected to the outlet air orifice directing the flow of air into the mast, the disc-shaped piece, the head, and the radial arc causing the fabric covering to furl; and wherein during the unfurl of the umbrella, the piston passages do not coincide with the passage connected to the outlet air orifice.