EQUIPMENT FOR CLEANING AIRFIELD SIGNAL LIGHTS Russian patent published in 2023 - IPC B64F1/18 

FIELD: airfield cleaning equipment.

SUBSTANCE: equipment for cleaning signal lights contains a frame (1) on which a brush mechanism (2), a limiter (3), a hitch (4) and a drive (5) are installed. The brush mechanism (2) has the form of a cross, fixed on a rotating shaft, on the blades of which, parallel to the axis of rotation, brush pile is placed. The cross is replaceable so that it can be replaced along with brush pile as it wears out. The brush pile fibres on the replaceable cross are made of different lengths - shorter in the centre and longer at the edges, with formation of a hollow geometric figure and with the possibility of changing their position from vertical to inclined and horizontal by changing the rotation frequency of the replaceable cross and their stiffness by replacing them. The limiter (3) is equipped with a protective screen and a curved chute.

EFFECT: increased efficiency of cleaning the airfield signal lights without formation of snowbanks in the nearby area around the light in the winter season, as well as the ability to remove vegetation in the warm season in the zone of light signal lights.

1 cl, 3 dwg