Patent ID: 7682655

Claim:
A in situ pipe lining method comprising: a) placing a pipe lining apparatus, having a housing, into the interior of a pipe to be lined; b) connecting the pipe lining apparatus to an umbilical attached to resources comprising air, lining components, and electricity; c) causing the pipe lining apparatus to move at a predetermined speed along the longitudinal axis of the pipe; d) heating the lining components in the apparatus; e) activating a motor to rotate a dissipation device between 20,000 and 45,000 rpm; f) mixing the lining components of isocyanate and amine resin in an impingement block; g) reciprocatingly moving a head attached to the housing and including a rotating shaft holding the rotating dissipation device shaped as two asymmetrical reversely aligned cones with a center top attached to the rotating shaft and with an acute angled flange oriented to the reciprocating head wherein the rotating dissipation device forms an acute angle to a lining stream proximate to the center top; h) utilizing a remotely activated termination rod extending through the impingement block wherein heated and pressurized lining components enter the block and are mixed and projected out of a stream tip orifice to the dissipation device by retraction of the termination rod; i) directing a stream of negatively charged ions to the dissipation device; j) projecting the lining on to the rotating dissipation device at 1700 to 3500 psi; k) allowing the lining to dwell and equalize mass within the dissipation device; l) partially curing the lining; m) distributing the lining in a 360 degree arc around the pipe from the dissipation device; and n) forward and reversely moving the reciprocating head between 0.001 and 5 inches thereby moving the dissipation device and the impingement block in unison.