E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 47/01 (2006.01) E21B 23/00 (2006.01)
Patent
CA 2463969
The invention relates to a device for holding and releasing an object, such device having a body with a cavity in which the object is accommodatable, an elastic retaining member for retaining the object in the cavity, and, a pushing member for pushing the object out of the body past the retaining member. The pushing member has a first stimuli responsive gel, which has a volume that varies in response to variation of a selected physical stimulating parameter and a controller capable of activating the pushing member by stimulating the first gel. The control means comprises a sensor for sensing a release signal sent by the object. The control means is adapted to respond to the release signal by stimulating at least the first gel.
La présente invention concerne un dispositif (1) conçu pour retenir et libérer un objet (3). Ce dispositif comprend un corps (4), qui présente une cavité (5) dans laquelle se loge l'objet, un élément de retenue élastique (6), qui est conçu pour retenir l'objet dans la cavité, un élément poussoir (7), qui est conçu pour pousser l'objet à l'extérieur du corps, au-delà de l'élément de retenue, et qui comprend un premier gel (8) répondant à des stimuli, dont le volume varie en fonction de la variation d'un paramètre de stimulation physique choisi, ainsi que des systèmes de commandes, qui sont conçus pour commander l'élément poussoir par stimulation du premier gel.
Den Boer Johannis Josephus
Stewart John Foreman
Shell Canada Limited
Smart & Biggar
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