Patent ID: 6364578
Filing Date: 2002-04-02
Classification: E04G

Abstract:
A device for injecting material in the form of a suspension into a cavity, the device comprising:an injection tube for injecting said material, the tube having a first end for coupling and a second end that is open to allow said material to escape into said cavity; a coupling member having a cylindrical portion provided with an axial bore having a first end for coupling to the first end of said tube and a second end, said coupling member also having a radial stub; a material feed pipe connected to said stub; a vent hose engaged in said tube and in said coupling member, said vent hose having a first end projecting from the second end of the tube to collect the air contained in said cavity, and a second end that is open to allow the air to escape and that projects from the second end of the coupling member; and a sealing piece for sealing the second end of said coupling member to the outside wall of said hose.