Underdrain for filter tanks

Details Underdrain for filter tanks Underdrain for filter tanks

1978-08-22

1980-04-29

Wyse, Thomas G.

Liquid purification or separation

Particulate material type separator, e.g., ion exchange or...

With rehabilitation means

210289, 210291, B01D 2320

Patent

active

042005361

ABSTRACT:
An underdrain assembly for a filter tank includes a plurality of spirally shaped hollow tubular elements of substantially equal length having capped terminal ends and equally spaced perforations in lower sides thereof. The elements are equally spaced apart so that the perforations in adjacent elements are spaced substantially the same as the perforations in the tubular elements. Backwash water fed out through such perforations is therefore distributed during a backwashing operation substantially uniformly throughout the filter bed of the tank overlying the underdrain assembly so that the entirety of the filter bed is completely and uniformly backwashed.

REFERENCES:
patent: 949455 (1910-02-01), Usher
patent: 1698079 (1929-01-01), Wagner
patent: 2242652 (1941-05-01), Maxwell
patent: 2364775 (1944-12-01), Brice
patent: 2818977 (1958-01-01), Crist
patent: 3247971 (1966-04-01), Kastler
patent: 3384240 (1968-05-01), Berardi
patent: 3954620 (1976-05-01), Nebolsine

Affiliated with

Also associated with

Rating

Underdrain for filter tanks does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Underdrain for filter tanks, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Underdrain for filter tanks will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1683391