Donald Jack Creed

US Patent:

54179971, May 23, 1995

Filed:

Jul 26, 1993

Appl. No.:

8/096411

Inventors:

Donald J. Creed - Plymouth IN

International Classification:

B29C 4700
B29C 6720

US Classification:

264563

Abstract:

A method and apparatus for continuously manufacturing a reinforced, flexible, porous, tubular pipe. The reinforced, flexible porous tubular pipe comprises an extruded porous inner layer, spiral wound open mesh webbing surrounding the porous inner layer, and an extruded porous outer layer. A granular elastomeric material is blended with a polyethylene polymer thermoplastic and an emulsifier, heated and passed through a first extruding means to form a flexible, tubular porous inner layer. The porous inner layer is passed through a quick cooling means, then an open mesh webbing is spirally wound about the porous inner layer. The porous inner layer and the open mesh webbing are then passed through a second extruding means to form a porous outer layer. The reinforced, flexible porous tubular pipe is then cut to length and coiled to suit manufacturing preference.