Inflatable cushion device
OwnerYin-jun Huanginventor
Life of this patent
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Abstract
An inflatable air cushion has an integrally formed extension tube of zig-zag form with its free end attached to another cushion or to a pump assembly for inflating the cushion. By separating the limbs of the zig-zag tube, the cushions, or the cushion and pump assembly can be spaced apart at different distances to suit different applications. The pump may include a pressure limiting chamber integrated therewith for limiting the maximum inflation pressure of the cushion.
Claims9
An air cushion having at least one extension tube with one end communicating with the interior of the cushion, said tube being integrally formed with said cushion and having a zig-zag form with adjacent limbs which can be moved apart and together so as to adjust the spacing between the cushion and a second end of the tube.
Dependencies are inferred from the claim text.