Removal device for threaded connecting devices

Details Removal device for threaded connecting devices Removal device for threaded connecting devices

B - Operations, Transporting

25

B

B25B 13/50 (2006.01) B25B 13/48 (2006.01) B25B 27/18 (2006.01)

Patent

CA 2232458

A removal device (10) for removing difficult to remove threaded connecting devices threaded in a first direction. The device (10) includes a body (12) having a first end (14) and a second end (16), wherein the first end includes an opening (20), which extends toward the second end (16), sized to receive a threaded connecting device and continuously tapers from a first diameter (24) at the first end (14) to a second diameter (26) at the second end (16), wherein the first diameter (24) is larger than the second diameter (26). The opening further includes an internal surface (22) threaded in a direction opposite the first direction. The device (10) further includes structure for rotating the body (12), such rotation causing the internal threading of the removal device (10) to engage the threaded connecting device causing the threaded connecting device to rotate in a direction appropriate for the removal of the threaded connecting device threaded in the first direction.

L'invention concerne un dispositif de dévissage (10) pour dévisser des raccords filetés vissés dans une première direction et difficiles à enlever. Le dispositif (10) comprend un corps (12) présentant une première extrémité (14) et une seconde extrémité (16), la première extrémité comprend une ouverture (20) qui s'étend vers la seconde extrémité (16), dimensionnée pour recevoir le raccord fileté et qui se rétrécit d'une manière continue depuis un premier diamètre (24), au niveau de la première extrémité (14), jusqu'à un second diamètre (26) au niveau de la seconde extrémité (16), le premier diamètre (24) étant supérieur au second diamètre (26). L'ouverture comprend aussi une surface interne (22) filetée dans la direction opposée à la première direction. Le dispositif (10) comprend en outre une structure pour faire tourner le corps (12), cette rotation provoquant l'engagement du filetage interne du dispositif de dévissage (10) avec le raccord fileté et la rotation de ce dernier dans la direction qui convient pour enlever le raccord fileté vissé dans la première direction.

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