Patent ID: 6658188
Filing Date: 2003-12-02
Classification: G02B

Abstract:
A dry optical fiber telecommunications cable for voice, video and data telecommunications, comprising:a) a central reinforcement element; b) at least one optical fiber filament; c) a plurality of tubes loosely fitted longitudinally and surrounding said central reinforcement element, wherein said at least one said optical fiber filament can be fitted through each of said tubes; d) a first dry protection layer between said central reinforcement element and said plurality of tubes, wherein said first dry protection layer is selected from the group consisting of dispersed powder, helicoidal threads, and swellable tape; e) a second dry protection layer surrounding said plurality of tubes, wherein said second dry protection layer is selected from the group consisting of a polyethylene cover and an aramide fiber; f) a polyethene cover positioned over and around said second dry protection layer; g) a third dry protection layer comprised of swellable tape; h) at least one metallic tape surrounding said third dry protection layer; and i) a covering of polyethylene surrounding said at least one metallic tape surrouding said third dry protection layer.