APPARATUS AND METHOD FOR RECIRCULATION OF FLUIDS INCLUDING TWO 4-PORT 2-WAY-VALVES

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F26142376%3A_____%2F20%3AN0000001" target="_blank" >RIV/26142376:_____/20:N0000001 - isvavai.cz</a>

Result on the web

<a href="https://worldwide.espacenet.com/publicationDetails/biblio?CC=EP&NR=3396372B1&KC=B1&FT=D&ND=1&date=20200408&DB=&locale=en_EP#" target="_blank" >https://worldwide.espacenet.com/publicationDetails/biblio?CC=EP&NR=3396372B1&KC=B1&FT=D&ND=1&date=20200408&DB=&locale=en_EP#</a>

DOI - Digital Object Identifier

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Result language

angličtina

Original language name

APPARATUS AND METHOD FOR RECIRCULATION OF FLUIDS INCLUDING TWO 4-PORT 2-WAY-VALVES

Original language description

The present invention provides an apparatus and method for recirculation (or recycling) of fluids. It describes a sample insertion system, suitable for e.g. HPLC, which comprises an arrangement of two valves and two fluid paths. The arrangement comprises a first valve comprising a first port adapted to be coupled to a fluid delivery system, a second port and a third port, wherein the first valve is adapted to switch, in a first switch transition, from a first state wherein the first port is coupled with the second port, over a second state wherein the first port, the second port and the third port are coupled altogether, to a third state wherein the first port is coupled with the third port. The arrangement further comprises a second valve comprising a fifth port adapted to be coupled to the stationary phase, a sixth port, and a seventh port, wherein the secondvalve is adapted to switch, in a second switch transition, from a fourth state wherein the fifth port is coupled with the sixth port, to a fifth state wherein the fifth port is coupled with the sevent port. Furthermore, the arrangement comprises a first fluid path connecting the second port and the sixth port, and a second fluid path connecting the third port and the seventh port, wherein the second fluid path comprises a sample introduction path adapted for introducing the sample fluid into the mobile phase. The aim of this arrangement is to allow sample introduction at low pressure into the second fluid path in a position of the valves which at the moment of insertion of the sample disconnects the path from the fluid delivery system and the stationary phase. Then the valves are switched into another position, to allow the introduction of the sample into the mobile phase delivered to the stationary phase. This document does not address the problem of recirculation of fluids

Czech name

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Czech description

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Type

P - Patent

CEP classification

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OECD FORD branch

20400 - Chemical engineering

Project

<a href="/en/project/FV10490" target="_blank" >FV10490: BioPrep - a compact chromatograph for biomolecule purification</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2020

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Patent/design ID

EP3396372

Publisher

EPO_1 -

Publisher name

European Patent Office

Place of publication

Munich, The Hague, Berlin, Vienna, Brussels

Publication country

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Date of acceptance

Apr 8, 2020

Owner name

Watrex Praha, s.r.o.

Method of use

A - Výsledek využívá pouze poskytovatel

Usage type

V - Výsledek je využíván vlastníkem