Expander device

Details Expander device Expander device

E - Fixed Constructions

21

B

E21B 43/10 (2006.01)

Patent

CA 2435649

Apparatus (9) for radially expanding an expandable member, the apparatus including a plurality of radially moveable fingers (22). The radially moveable fingers (22) can move between two positions ; in a first position, the moveable fingers (22) are radially extended to a form a cone to facilitate radial expansion of the expandable member ; in the second position, one or more of the radially movable fingers (22) can move radially inward so that restrictions in the path of the apparatus can be by-passed.

La présente invention concerne un appareil (9) qui permet d'écarter radialement un élément extensible, l'appareil comprenant une pluralité de doigts (22) mobiles dans le sens radial. Les doigts (22) mobiles dans le sens radial peuvent bouger entre deux positions, dans une première position, les doigts mobiles (22) sont radialement étirés pour former un cône qui facilite la dilatation radiale de l'élément extensible et dans une deuxième position, au moins un des doigts mobiles (22) peut se mouvoir radialement vers l'intérieur de manière à ne pas être gêné par les limitations existant sur le chemin de l'appareil.

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