초록 ▼

An interlocking restraint plastic pipe joining system is shown which features female and male end connections for adjacent lengths of pipe. The female end connection has at least one radially extending indention or protrusion within the mouth opening thereof. The male end connection has at least one

An interlocking restraint plastic pipe joining system is shown which features female and male end connections for adjacent lengths of pipe. The female end connection has at least one radially extending indention or protrusion within the mouth opening thereof. The male end connection has at least one radially extending protrusion or indention formed on an exterior surface thereof. The indention and protrusion matingly engage in snap fit fashion as the joint is formed by forcing the male connection axially into the female connection.

대표청구항 ▼

An interlocking restraint plastic pipe joining system for sealed applications, the system comprising: a pair of female and male integral end connections for adjacent lengths of pipe adapted to be snap fitted together to form an interlocked end connection with adjacent lengths of pipe to form a pipe

An interlocking restraint plastic pipe joining system for sealed applications, the system comprising: a pair of female and male integral end connections for adjacent lengths of pipe adapted to be snap fitted together to form an interlocked end connection with adjacent lengths of pipe to form a pipe joint, said female end connections each having a mouth opening with a mouth opening diameter and having an annular groove adjacent the mouth opening thereof for receiving a sealing gasket, the annular groove having an internal diameter which at a maximum point is greater than the remaining mouth opening diameter, the annular groove also forming an exterior upset region in the female end connection, each of the female end connections having at least one surface selected from among a radially extending protrusion or indention within the mouth opening thereof, said male end connection having at least one surface selected from among a radially extending protrusion or indention formed on an exterior surface thereof which is adapted to matingly engage in snap fit fashion, the radially extending indention or protrusion in the mouth opening of the female end connection, said joint being formed by the snap fit of the male end connection axially into the female end connection due to the deformability of the plastic pipe; and a sealing gasket located within the annular groove provided within the mouth opening of the female end connection, said sealing gasket having a face surface which provides a primary sealing surface for said pipe joint.