Giulio Catallo - Houston TX Joe V. Cihlar - Houston TX Maurice P. G. Lubbock - Sugarland TX
Assignee:
Inliner, U.S.A. - Houston TX
International Classification:
B29C 6326 B65B 3104
US Classification:
141 65
Abstract:
An apparatus and method for removing air from a tube to improve the impregnation of the tube with a curable resin or other viscous fluid used in cured-in-place pipe rehabilitation. Also, a perforated needle for use in vacuum impregnation and a method of evacuating air from a flexible tube, particularly a lining tube used for rehabilitation of underground conduits.