Patent ID: 7137403
Filing Date: 2006-11-21
Classification: B23B,F16L,Y10T

Abstract:
1. A device for producing bypasses under pressure in fluid piping systems, of the type comprising a horizontal T-shaped body with a central radial conduit ( 1 ) which can be coupled at a lower mouth ( 6 ) of the conduit to a seat or collar for joining with a pipe ( 27 ) to be bypassed, and a side conduit with a mouth ( 7 ) for extracting the fluid from the bypass, the radial conduit ( 1 ) having a detachable access cover ( 2 ) at an upper portion thereof, the device comprising a perforation cutter ( 3 ), in the form of an inverted cup having teeth forming a toothed crown and, at a portion opposite to the toothed crown ( 11 ), a coaxial cylindrical extension with a stepping in two consecutive threaded areas ( 32 and 33 ) of a decreasing diameter, one threaded area ( 33 ) being constructed and arranged for coupling of the cutter with a threaded area ( 10 ) existing in an upper portion of the radial conduit; said extension of the cutter ( 3 ) comprising a hole ( 51 ) at an upper base thereof connected to a feed tool, co-aided by the threaded area ( 32 ); the device further comprising a tool for handling and feeding of the cutter ( 3 ), comprising a body ( 17 ) which can be coupled to the upper portion of the radial conduit ( 1 ) with a shaft ( 22 ) which can be detached through a screw ( 21 ) operatively suitable for extraction of the cutter ( 33 ) from the threaded area of the seat in the upper portion and for the perforation of the pipe ( 27 ) to be bypassed.