Self-cleaning filter for agricultural irrigation water

Details Self-cleaning filter for agricultural irrigation water Self-cleaning filter for agricultural irrigation water

2011-03-29

2011-03-29

Lithgow, Thomas M (Department: 1776)

Liquid purification or separation

Filter

With residue removing means or agitation of liquid

C210S352000, C210S354000, C210S488000

Reexamination Certificate

active

07913855

ABSTRACT:
The invention relates to an improved self-cleaning filter for agricultural irrigation water having a support base (8) for the rings (3) traversed by perforated tubes (4) which clean them, allowing the axial movement of the tubes (4) having an integral upper cover (5) at the opposite end which presses them in an axial direction, whereas the lower base (6), also integral thereto, generates the axial thrust to separate and press them, acting as a blocker and allowing the flow path to the perforated tubes (4); incorporating a base (9) acting as a membrane and a spring pressing on the rings (3), with an adjustable separation and variable in number.

REFERENCES:
patent: 4655910 (1987-04-01), Tabor
patent: 4655911 (1987-04-01), Tabor
patent: 6419826 (2002-07-01), Lara et al.
patent: 2006/0144768 (2006-07-01), Harris

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