E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 34/12 (2006.01)
Patent
CA 2681389
The invention provides a valve assembly comprising a conduit (1) with a bore (1b) for passage of fluid therethrough. The valve assembly also comprises a sealing member (30) that is movable within the conduit 1 to open and close the bore (1b). The seal assembly has a valve seat (20, 22) on which the sealing member (30) seals when the bore (1b) is closed, and wherein the valve seat (20, 22) is movable within the conduit (1). The invention also provides a valve assembly comprising a sealing member (30), a first valve seat (20) for the sealing member, and a second valve seat (22) for the sealing member. The valve assemblies can be resettable. The invention further provides a flapper valve assembly wherein the flapper (30) is pivotable through more than 90º and a bi-directional flapper valve assembly.
L'invention concerne un ensemble soupape comprenant un conduit (1) avec un alésage (1b) pour qu'un fluide passe à travers. L'ensemble soupape comprend aussi un élément d'étanchéité (30) qui est mobile à l'intérieur du conduit (1) pour ouvrir et fermer l'alésage (1b). L'ensemble d'étanchéité comporte un siège de soupape (20, 22) sur lequel l'élément d'étanchéité (30) assure l'étanchéité quand l'alésage (1b) est fermé, le siège de soupape (20, 22) étant mobile à l'intérieur du conduit (1). L'invention concerne aussi un ensemble soupape comprenant un élément d'étanchéité (30), un premier siège de soupape (20) pour l'élément d'étanchéité et un second siège de soupape (22) pour l'élément d'étanchéité. On peut corriger le réglage des ensembles soupape. L'invention concerne en outre un ensemble soupape à languette dans lequel la languette (30) peut pivoter de plus de 90° et un ensemble soupape à languette bidirectionnelle.
Purkis Daniel
Emery Jamieson Llp
Petrowell Limited
LandOfFree
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