Ina Acquisition Corporation

Sak Construction, LLC

Insituform Holdings Limited

James H Blasczyk

Franklin Thomas Driver

Richard Carl Polivka

Kyle Costa

Neil T Birchler

Steve J Hirtz

Richard C Polivka

Neil Birchler

A lock block for attaching to a diameter-reduced pipe liner pulled through a host pipe which braces the pipe liner and inhibits it from fully retreating into the host pipe when longitudinal tension is reduced and the pipe liner experiences length reduction.

Systems and apparatus for inhibiting a compressed pipe liner from retreating into a host pipe

Systems and methods for pulling a pipe liner through a host pipe comprising a pulling head with a number of fingers having flexion points which move from an open orientation to a closed position when the pulling head is placed under tension from winch to thread a pipe liner through a host pipe.

Device and system for pulling a compressed pipe liner into a host pipe

Installation of a flexible cured in place liner by inverting the liner with air and curing the liner with steam introduced through a perforated lay flat hose without deflating the liner between the inversion and cure. The installation is performed with an apparatus having two independently operable glands with at least one fluid inlet port installed on the line downstream of the second gland liner. As the liner reaches the distal end of the conduit to be lined, it enters a sample and porting pipe with an exhaust pipe gland and exhaust pipe and it is pierced by a rigid porting tool. Steam is then introduced into the lay flat hose to cure the resin and is exhausted through an exhaust hose connected to a controllable exhaust pipe. After curing steam is replaced with air to cool the liner, the ends are cut to restore service through the host pipe.

Dual gland air inversion and steam cure of cured in place liners

Installation of cured in place liners with dual gland air inversion and steam cure apparatus

Growing community of inventors

Friendswood, TX, United States of America

James H Blasczyk