US Patent 9784393 Pipe connectors and systems

A pipe connector includes a housing body defining an axial bore arranged to receive a length of pipe. A plurality of sealing members is positionable in a stacked configuration within the axial bore. The sealing members define a first opening through which the length of pipe can pass and are arranged to form a seal between the length of pipe and the housing body. A locking member is positionable in the axial bore above the sealing members. The locking member defines a second opening. The length of pipe is movable through the second opening in a first direction and the locking member engages the length of pipe when the pipe is forced in a second direction opposite the first direction to form a one-way stop.