| 摘要 |
<p>The collapsible and adjustable ventilation device for a lap-top computer comprises only two crossing thin, semi-stiff strips with rubber feet at each end. The strips are fastened together in the center by an eyelet and are completely pivotable. Each foot is movable along its strip and comprises a large lower and a smaller upper cylinder and can be adjusted in height by the upper being screwed into the lower. For transport the strips are turned so that they coincide and the feet are fastened in each other, two by two. The strips are rolled together from one end and are locked by a foot being pressed into the eyelet. For use, the device has an adjustable stand which increases the distance to an under surface from a pair of millimeters to between 1.5 to 2.5 centimeters. For transport the device weighs less than a hectogram.</p> |
