WO2025036809 - A SELF-CLOSING VALVE
National phase entry is expected:
Publication Number
WO/2025/036809
Publication Date
20.02.2025
International Application No.
PCT/EP2024/072443
International Filing Date
08.08.2024
Title **
[English]
A SELF-CLOSING VALVE
[French]
SOUPAPE À FERMETURE AUTOMATIQUE
Applicants **
IMEC VZW
VRIJE UNIVERSITEIT BRUSSEL
Inventors
WANG, Zhanwei
VANDERBORGHT, Bram
TERRYN, Seppe
Priority Data
23191748.5
16.08.2023
EP
Application details
| Total Number of Claims/PCT | * |
| Number of Independent Claims | * |
| Number of Priorities | * |
| Number of Multi-Dependent Claims | * |
| Number of Drawings | * |
| Pages for Publication | * |
| Number of Pages with Drawings | * |
| Pages of Specification | * |
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| Number of Office Actions | * |
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International Searching Authority |
EPO
* |
| Recordal of a Change of the Applicant's Name/Address |
Change of Applicant's Name and Address
* |
| Type of Assignment |
The Standard Agent's Assignment
* |
| Applicant's Legal Status |
Legal Entity
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| * | |
| * | |
| * | |
| * | |
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| Entry into National Phase under |
Chapter I
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| Patent Delivery |
Send the Letters Patent by Courier
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| 译文 |
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* The data is based on automatic recognition. Please verify and amend if necessary.
** IP-Coster compiles data from publicly available sources. If this data includes your personal information, you can contact us to request its removal.
Quotation for National Phase entry
| Country | Stages | Total | |
|---|---|---|---|
| China | Filing, Examination, Granting | 2024 | |
| EPO | Filing, Examination, Granting | 8126 | |
| Japan | Filing, Examination, Granting | 2155 | |
| South Korea | Filing, Examination, Granting | 2071 | |
| USA | Filing, Examination, Granting | 5340 |
Total:
19,716
The term for entry into the National Phase has expired. This quotation is for informational purposes only
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Abstract[English]
The valve comprises a fluid channel (20) extending in a longitudinal direction between an inlet section (21) and an outlet section (22) of said channel. The valve is configured to be directly or indirectly coupled to an underpressure source at the channel's outlet section. The fluid channel has an inner and an outer surface (23,24). The valve further comprises a flexible film (8) mounted in the channel (20) and oriented transversely with respect to said longitudinal direction. The film comprises apertures (9) which are located and dimensioned so that said apertures are displaced in the direction of the inner surface (23) of the channel and pressed against said inner surface, when the film is flexed in the direction of the outlet section (22) under the influence of a pressure difference between the two sides of the film when the valve is coupled to an underpressure, and when the inlet section (21) is at least partially open. Within a given range of underpressures, the displacement of the apertures (9) is such that fluid flow through the channel (20) is blocked or significantly restricted, which constitutes a self-closing function of the valve.[French]
La soupape comprend un canal de fluide (20) s'étendant dans une direction longitudinale entre une section d'entrée (21) et une section de sortie (22) dudit canal. La soupape est conçue pour être accouplée directement ou indirectement à une source de dépression au niveau de la section de sortie du canal. Le canal de fluide a une surface interne et une surface externe (23, 24). La valve comprend en outre un film souple (8) monté dans le canal (20) et orienté transversalement par rapport à ladite direction longitudinale. Le film comprend des ouvertures (9) qui sont situées et dimensionnées de telle sorte que lesdites ouvertures sont déplacées en direction de la surface interne (23) du canal et pressées contre ladite surface interne, lorsque le film est fléchi dans la direction de la section de sortie (22) sous l'influence d'une différence de pression entre les deux côtés du film lorsque la soupape est couplée à une dépression, et lorsque la section d'entrée (21) est au moins partiellement ouverte. Dans une plage donnée de sous-pressions, le déplacement des ouvertures (9) est tel que l'écoulement de fluide à travers le canal (20) est bloqué ou significativement limité, ce qui constitue une fonction d'auto-fermeture de la soupape.