Filter unit for shafts and drain systems comprises a filter flap which is located between the top coarse filter and the bottom outlet, incorporates a filter insert and a droplet catcher, and is pivotable about an axis

摘要

The filter unit for shafts and drain systems comprises a filter flap which is located between the top coarse filter and the bottom outlet, incorporates a filter insert (8) and a droplet catcher (7), and is pivotable about an axis (5) between closed and open positions (A, B). Independent claims are also included for: (a) a method for producing the proposed filter unit (b) applications of the unit in shafts and drain systems.