Apparatus for separating a light fluid from a heavy one...

Apparatus for sewer cleaning and the like

Apparatus for stormwater retention and release, and method...

Apparatus for supplying water at constant and elevated...

Apparatus for the distribution of water or other liquids

Apparatus for the treatment of rain water

Apparatus for transforming urban waste into sterile muds

Apparatus primarily for thawing frozen pipes

Application solution of infrared communication in automatic...

Arrangement for a urinal

Arrangement for reusing gray water

Arrangement in water-closets

Article and method for maintaining more even concentrations...

Articulating faucet and joint therefor

Aspirating apparatus particularly for toilets

Aspirator for a shower fitting

Aspirator for a tub/shower diverter assembly

Aspirator water circulation apparatus

Assembly for pipe finishing work

Assembly to mount a hydrant on a roof