FAN Russian patent published in 2013 - IPC F24F7/06 

FIELD: ventilation.

SUBSTANCE: fan stand comprising a sliding tube, designed to move air flow into an outlet hole of the fan and comprising an outer cylindrical element with the first stop element, an inner cylindrical element, at least partially arranged in the outer cylindrical element and made as capable of displacement relative to the outer cylindrical element, at the same time the inner cylindrical element comprises the second stop element arranged with the possibility of interaction with the first stop element for prevention of extraction of the inner cylindrical element from the outer cylindrical element, and a travel spring installed as capable of rotation on the second stop element and comprising a free end retained by the first stop element.

EFFECT: facility for air flow creation via a tube may be arranged in a lower part of a stand, thus centre of gravity of a fan is below compared to available floor fans, thus the proposed fan is less prone to falling when touched.