Patent ID: 6354331
Filing Date: 2002-03-12
Classification: B29C,F16L

Abstract:
Flexible plastic tubing adapted for receiving a contents, said tubing extending in an axial direction along a central longitudinal axis to an indefinite length, and in a radial direction circumferentially about said longitudinal axis, said tubing having an axial outermost surface and an axial innermost surface which together define a sidewall of a given thickness dimension therebetween, said tubing comprising:a first sidewall segment formed of a first polymeric material which is generally opaque, and having an axial first outer surface which defines a portion of the tubing outermost surface, and an axial first inner surface; and a second sidewall segment formed as a longitudinal band integrally with said first sidewall segment of a second polymeric material which is generally transparent, and having an axial second inner surface which defines at least a portion of the tubing innermost surface, and an axial second outer surface which defines a portion of the tubing outermost surface, said second inner and said second outer surface defining a window therebetween through the thickness dimension of the tubing sidewall, the contents of said tubing being viewable through said window.