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1. WO1999030796 - REVERSE FLOW SPIN-CLEANING LIQUID FILTERS

Publication Number WO/1999/030796
Publication Date 24.06.1999
International Application No. PCT/IL1998/000606
International Filing Date 15.12.1998
Chapter 2 Demand Filed 29.06.1999
IPC
B01D 29/11 2006.1
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
29Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/-B01D27/170;   Filtering elements therefor
11with bag, cage, hose, tube, sleeve or like filtering elements
CPC
B01D 29/11
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
29Other filters with filtering elements stationary during filtration, e.g. pressure or suction filters, or filtering elements therefor
11with bag, cage, hose, tube, sleeve or like filtering elements
B01D 29/114
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
29Other filters with filtering elements stationary during filtration, e.g. pressure or suction filters, or filtering elements therefor
11with bag, cage, hose, tube, sleeve or like filtering elements
114arranged for inward flow filtration
B01D 29/46
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
29Other filters with filtering elements stationary during filtration, e.g. pressure or suction filters, or filtering elements therefor
44Edge filtering elements, i.e. using contiguous impervious surfaces
46of flat, stacked bodies
B01D 29/606
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
29Other filters with filtering elements stationary during filtration, e.g. pressure or suction filters, or filtering elements therefor
60integrally combined with devices for controlling the filtration
606by pressure measuring
B01D 29/68
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
29Other filters with filtering elements stationary during filtration, e.g. pressure or suction filters, or filtering elements therefor
62Regenerating the filter material in the filter
66by flushing, e.g. counter-current air-bumps
68with backwash arms, shoes or nozzles
B01D 29/682
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
29Other filters with filtering elements stationary during filtration, e.g. pressure or suction filters, or filtering elements therefor
62Regenerating the filter material in the filter
66by flushing, e.g. counter-current air-bumps
68with backwash arms, shoes or nozzles
682with a rotary movement with respect to the filtering element
Applicants
  • 'AR-KAL' PLASTICS PRODUCTS (1973) [IL]/[IL] (AllExceptUS)
  • SADAN, Yiftach [IL]/[IL] (UsOnly)
Inventors
  • SADAN, Yiftach
Agents
  • FREIMANN, Daniel
Priority Data
12267518.12.1997IL
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) REVERSE FLOW SPIN-CLEANING LIQUID FILTERS
(FR) FILTRES A LIQUIDES POUR NETTOYAGE PAR ROTATION A FLUX INVERSE
Abstract
(EN) A liquid filtering device of the type comprising a pack of cylindrical filter member discs (70) with an arrangement for reversed, filter flushing flow cycles. An integrally formed filter core member (24) is provided comprising tubular nozzled conduits (30a, 30b, 30c) so that water under pressure within the conduits becomes discharged in jet forms to enable free rotation of the filter discs. One-way valve (90) in the form of funnel-shaped rubber sleeve allows the flow of filtered water to the outlet port (20) but impedes the flow of flushing water from the outlet port through the filter member (70) in the direction of the inlet port (16).
(FR) L'invention concerne un dispositif pour filtrer des liquides, comprenant une groupe de disques filtrants cylindriques (70) conçus pour permettre des cycles à flux inversé pour le rinçage du filtre. Un élément central de filtre (24) formé d'une seule pièce comprend des conduits tubulaires à ajutage (30a, 30b, 30c) de sorte que l'eau sous pression à l'intérieur des conduits soit distribuée sous forme de jets afin de permettre la libre rotation des disques filtrants. Une soupape de retenue (90) sous la forme d'une gaine en entonnoir permet l'écoulement de l'eau filtrée vers l'orifice de sortie (20) mais empêche l'eau de rinçage, provenant de l'orifice de sortie, de s'écouler à travers l'élément filtrant (70) en direction de l'orifice d'entrée (16).
Related patent documents
MXPA/a/2000/005963This application is not viewable in PATENTSCOPE because the national phase entry has not been published yet or the national entry is issued from a country that does not share data with WIPO or there is a formatting issue or an unavailability of the application.
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