Patent ID: 8235066
Filing Date: 2012-08-07
Classification: F16L,Y10T

Abstract:
1. A safety device inserted in a pipe of fluid of determined minimal cross-sectional area to protect it from an excessive flow of fluid flowing therein from an upstream side to a downstream side, this device comprising: a tube exhibiting open upstream and downstream ends and providing the fluid with a central flow path; a retainer holding this device in place in the pipe; a controller controlling the fluid circulation, including a central valve and an elastically deformable annular shutter fastened to the outer periphery of the tube; and a hollow body fastened to the tube in the extension of and upstream from this tube; the retainer including a first set of clamps each one of which exhibits a free end biased by an elastic force towards a radial unfolding configuration equivalent to that of the spokes of an open umbrella, and this device moving between a resting configuration which it adopts in the event of a normal flow of the fluid and in which the central valve frees the central flow path, and a safety configuration, which it adopts in the event of an excessive flow of fluid and in which the central valve shuts-off the central flow path; and each one of the clamps exhibiting a tied end fastened to the periphery of the tube upstream from the annular shutter, and in that these clamps selectively exhibit, under the application of a radial compression, a folded configuration in which their respective free ends are turned towards this annular shutter.