IMPROVEMENTS IN OR RELATING TO AIR DIFFUSERS

摘要

1284264 Aerating waste water J H T IVORY 17 Oct 1969 [8 Oct 1968] 47572/68 Heading B1C A diffuser for attachment to an air supply main 1 comprises a bell 4 of non-foraminous material with a ring of air outlet orifices 8 and/or upwardly extending slots 9. If the outlets 8 become clogged bubbles are discharged from the tops of the slots. The outlets 8 may be cleared without emptying the tank or dismantling by pushing a suitably shaped brush or scraper along the main 1. The diffuser may be secured to the tank bottom by a clamp having upwardly extending fingers engaging the boss 6 (see Fig. 4, not shown).