Closed protective case

Abstract

Abstract PURPOSE:To suppress penetration of moisture from the external by forming a part of the inside face of a plastic case at least with a hydrophilic layer consisting of a hydrophilic material or a diffusion layer consisting of a porous material. CONSTITUTION:A communication cable connection part consists of optical cables 1 and 1', optical fiber cores 2, optical fiber core connecting parts 3 and plastic cases 4 and 4' divided vertically into two, and paper, cotton cloths, etc. are stuck to inside faces 4a and 4a' of cases 4 and 4' to provide hydrophilic layers 4b and 4b'. After sealing materials 5 are arranged on contacting faces of upper and lower plastic cases 4 and 4' to each other and contacting faces of these cases to cables, screws 6 are tightened to secure airtightness.

Inventors

• 👤 Kazutoki Takeda
• 👤 武田　和時
• 👤 Atsushi Sasaki
• 👤 淳 佐々木
• 👤 Yoshinori Kubota
• 👤 義則 久保田

Bibliographic Details