Patent ID: 7374210
Filing Date: 2008-05-20
Classification: E03C,E03F,F16L

Abstract:
1. A hydro concrete to pipe sealing arrangement consisting of: a main sealing sleeve having a first end and a second end, said main sealing sleeve consisting of two halves which interfit with each other to accommodate dimension variations during forming of a concrete casing wall; a rubber sleeve having a first end and a second end, said rubber sleeve being located on an interior of said main sealing sleeve wherein said rubber sleeve is entirely surrounded by said main sealing sleeve; said rubber sleeve having rings located on an interior surface which face towards said first end of said rubber sleeve, wherein said rings will slant in the same direction as a pipe being inserted, said rings being compressed between the pipe and the rubber sleeve; at least two hydro penetration stopping rings formed on an exterior surface of said main sealing sleeve and extending radially opposite from said rubber sleeve; at least two retainer rings embedded within an interior of said rubber sleeve at said first end and said second end of said rubber sleeve, and seals located at said first end and said second end of said main sealing sleeve to create a seal between the pipe to be inserted and the concrete casing wall.