Patent ID: 7913719

Claim:
A substantially hermetic tubing comprising: a. an inner tube; and b. a diffusion barrier tape laminate substantially hermetically coupled to the outside circumference of the inner tube for substantially the whole length of the inner tube, including: i. a diffusion barrier material; ii. a first layer of thermoplastic material applied to a first side of the diffusion barrier material; iii. a second layer of thermoplastic material applied to a second side of the diffusion barrier material, and; iv. the first layer and the second layer of thermoplastic material are sealed together; wherein the diffusion barrier tape laminate more than completely surrounds the circumference of the inner tube and provides a strip of overlapping diffusion barrier tape laminate parallel with the length of the inner tube, further wherein the strip of overlapping diffusion barrier tape laminate couples with underlying diffusion barrier tape laminate and seals the barrier tape laminate around the inner tubing.