Comminutor for inline flow of sewage

Abstract

An improved comminutor is provided having a one piece stationary hemispherical cage member and a one piece spherical-like rotatable cutting and shredding member adapted for use with the hemispherical cage in comminuting action with the inline flow of sewage. The hemispherical cage structure is formed by a plurality of spaced apart arcuate elements disposed about an axis of said hemispherical cage and are interconnected at their diametrical ends by a circular comb-like section configuration thereof having a plurality of radially inward projecting teeth. Each arcuate element has one of said teeth disposed at the terminal ends thereof, in alignment therewith and forming an integral part thereof. The rotatable structure of the device in its preferred embodiment incudes at least two substantially diametrically opposed C-shaped or curved arms of predetermined width and may be disposed co-axially with said cage and in the path of sewage flow while having a plurality of cutting and shredding teeth formed thereon and in spaced-apart relationship with the hemispherical cage for interengaging comminuting action with the radially extending teeth portions of the stationary comb-like section and for sweeping through the slots formed in the cage. The teeth of the cutting and shredding arms of the rotatable arcuate-like members are in rotational interengagement relationship with the periphically disposed comb-like section of the cage for comminuting sewage at least once during each revolution of the cutting and shredding arms.