One-way valve, apparatus and method of using the valve

B - Operations – Transporting – 65 – D

Patent

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Details

B65D 37/00 (2006.01)

Patent

CA 2589888

An apparatus has a valve body defining a first passageway, a valve seat, and a flow aperture extending through the valve body and coupled in fluid communication with the first passageway. A valve cover of the apparatus is formed of an elastic material and includes a cover base mounted on the valve body and fixedly secured against movement relative thereto, and a valve portion overlying the valve seat. The valve portion defines a predetermined radial thickness and forms an interference fit with the valve seat. The valve portion and the valve seat define a normally closed, axially-extending valve opening therebetween. The valve portion is movable between a normally closed position with the valve portion engaging the valve seat, and an open position with at least a segment of the valve portion spaced away from the valve seat to connect the valve opening in fluid communication with the flow aperture to thereby allow the passage of fluid from the flow aperture through the valve opening.

L'invention porte sur un appareil comportant: un corps de clapet constituant un premier passage; un siège de clapet; un orifice d'écoulement traversant le corps de clapet et communiquant avec le premier passage; un couvre-clapet d'un matériau élastique présentant une base fermement fixée au corps du clapet; et une partie du clapet recouvrant le siège du clapet. Ladite partie du clapet, d'une première épaisseur radiale et à ajustement serré sur le siège, constitue avec le siège un passage axial normalement fermée; elle est mobile entre une position normalement fermée où elle repose sur le siège, et une position d'ouverture, où l'une au moins de ses parties est séparée du siège, et où l'ouverture du clapet communique avec l'orifice d'écoulement d'où peut s'écouler le fluide. Une chambre à volume variable hermétiquement close abritant plusieurs portions de fluide communique avec le clapet, et une pompe placée entre ladite chambre et le clapet permet de pomper des portions de fluide dans la chambre en direction du clapet où elles sont servies.

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