EP 0931191 B1 20010404 - DOSING APPARATUS FOR DETERGENT PASTE
Title (en)
DOSING APPARATUS FOR DETERGENT PASTE
Title (de)
DOSIERUNG VON WASCHMITTELPASTEN
Title (fr)
DISPOSITIF DE DOSAGE DE PATE DE LAVAGE
Publication
Application
Priority
- DE 19641742 A 19961010
- EP 9705400 W 19971001
Abstract (en)
[origin: US6241378B1] The invention relates to a dosing apparatus for pastelike substances and mixtures thereof with a solvent by means of an injector, comprising an integrated shutoff device. The apparatus contains a detection device which detects the amount of paste according to conductimetry. The shutoff device is a dual piston valve closing an opening between the paste supply tube and an injector suction chamber as well as an opening between the solvent supply tube and an injector pre-chamber. The invention also relates to a method for dosing pastelike substances and the mixtures thereof with a solvent by means of such a device. By opening a shut-off device in a supply tube for a pressurized solvent, a dual piston valve moves against an opposing force. This releases a connection between a paste supply tube and an injection suction chamber, followed by a connection between the solvent supply tube and the injector pre-chamber. The paste is suctioned by an injector operating according to the hydraulic pump principle and mixed with released solvent. The mixture is injected into a measuring section wherein a conductimetry device measures the amount of paste dissolved in the mixture. The shut-off device is closed when the required dose of paste is obtained, whereupon the circuit which was previously in an open position is shifted in reverse order to a closed position.
IPC 1-7
IPC 8 full level
D06F 39/02 (2006.01); D06F 33/37 (2020.01)
CPC (source: EP US)
D06F 39/022 (2013.01 - EP US); D06F 33/37 (2020.02 - EP US)
Designated contracting state (EPC)
AT BE CH DE DK ES FI FR GB GR IE IT LI NL PT SE
DOCDB simple family (publication)
US 6241378 B1 20010605; AT E200316 T1 20010415; DE 19641742 A1 19980423; DE 59703308 D1 20010510; DK 0931191 T3 20010605; EP 0931191 A1 19990728; EP 0931191 B1 20010404; ES 2155676 T3 20010516; GR 3035779 T3 20010731; NO 991682 D0 19990409; NO 991682 L 19990409; PT 931191 E 20010928; WO 9815682 A1 19980416
DOCDB simple family (application)
US 28426699 A 19990510; AT 97912090 T 19971001; DE 19641742 A 19961010; DE 59703308 T 19971001; DK 97912090 T 19971001; EP 9705400 W 19971001; EP 97912090 A 19971001; ES 97912090 T 19971001; GR 20010400628 T 20010423; NO 991682 A 19990409; PT 97912090 T 19971001