I EN VAETSKA NEDSAENKBAR LUFTTILLFOERSEL- OCH/ELLER BLANDNINGSANORDNING

摘要

The invention relates to an immersible aerator and/or mixer apparatus to be lowered onto the bottom of a basin or tank containing liquid, often also solid substances, and particularly the invention relates to the supporting structures of the said apparatus as well as to the devices for protecting the motor and power transmission chambers of the said aerator and/or mixer apparatus from the liquid contained in the said vessel.