Grit trap for waste water system

Details Grit trap for waste water system Grit trap for waste water system

2011-07-05

2011-07-05

Soohoo, Tony G (Department: 1777)

Liquid purification or separation

Gravitational separator

Heavier constituent trap, chamber, or recess

C210S513000, C210S519000, C210S523000, C210S456000

Reexamination Certificate

active

07971732

ABSTRACT:
A grit removal unit for a waste water system, including a round grit removal chamber with an input for waste water and an output, a grit storage chamber beneath the grit removal chamber, and an opening between the grit storage chamber and the grit removal chamber. A vertical drive shaft extends through the grit removal chamber into the grit storage chamber, and is rotatable to facilitate waste water flow in the grit removal chamber whereby grit in the waste water is directed toward the opening. A grit size restrictor includes a shear secured to the drive shaft for rotation therewith (the shear including a plate extending radially from the drive shaft above the opening), a first set of bars extending across the opening, and a second set of bars secured to the bottom of the shear plate with the second set of bars positioned adjacent the first set of bars.

REFERENCES:
patent: 2425932 (1947-08-01), Green et al.
patent: 2450492 (1948-10-01), Stevenson
patent: 2678730 (1954-05-01), Coulter
patent: 3627132 (1971-12-01), Kelly et al.
patent: 3713595 (1973-01-01), Craig et al.
patent: 3941698 (1976-03-01), Weis
patent: 4107038 (1978-08-01), Weis
patent: 4519907 (1985-05-01), Rooney
patent: 4767532 (1988-08-01), Weis
patent: 4959183 (1990-09-01), Jameson
patent: 5061375 (1991-10-01), Oyler
patent: 6811697 (2004-11-01), Davis et al.
patent: 6855262 (2005-02-01), Nyman et al.

Affiliated with

Also associated with

Rating

Grit trap for waste water system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Grit trap for waste water system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Grit trap for waste water system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2688681