F - Mech Eng,Light,Heat,Weapons – 16 – B
Patent
F - Mech Eng,Light,Heat,Weapons
16
B
F16B 23/00 (2006.01) B25B 13/06 (2006.01) B25B 13/48 (2006.01) F16B 41/00 (2006.01)
Patent
CA 2101866
A security nut, which can be tightened on to a bolt but not slackened has a body which is dome shaped and through which a threaded bore passes. The external dome-shaped surface of the body is provided with grooves which have diverging walls which can be engaged by driving faces of a socket tool to tighten the nut but not to slacken it. The dome-shape of the body makes it virtually impossible to grip it to slacken the nut.
Écrou de sécurité pouvant être serré sur un boulon, mais qui ne peut être débloqué parce qu'il a la forme d'un dôme à travers lequel passe un alésage fileté. La surface externe, en forme de dôme, de l'écrou comprend des rainures présentant des parois divergentes qui peuvent recevoir, par insertion, les faces d'une douille afin de serrer l'écrou mais non le débloquer. Étant donné que l'écrou a la forme d'un dôme, il est pratiquement impossible qu'un outil puisse prendre prise sur celui-ci pour le débloquer.
Gowling Lafleur Henderson Llp
Kinnings Marlow Limited
LandOfFree
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