The Furukawa Electric Co., Ltd.

Ocean Cable Co., Ltd.

Seitei Co., Ltd.

Naniwa Seitei Kabushiki Kaisha

Kazuhiko Murao

Masatsugu Murao

Kenichi Mochizuki

Ikuo Ochiai

Kiyoshi Funaki

Tsuneo Okamoto

Jiro Ikeda

Hideo Chiba

Mitsuaki Murao

Manjiro Sato

Yoshinori Murao

Tsuyoshi Mochizuki

Tadashi Fuku

Hideaki Omori

Flexible fluid transport pipe having hydrogen-induced cracking resistant

Pressure-resistant sheath of a submarine optical fibre cable and method

A continuous article has its surface treated twice by first and second jets of fluids as passing though a tunnel provided on a pass line. A fluid flow is supplied through each of first and second introducing ports into the tunnel where it is converted into each of the first and second jets of fluids, one rushing over the article in the same direction as the article and the other rushing over the same in the opposite direction thereto for effecting surface treatments respectively by the first and second jets of fluid. Each of the first and second jets causes a negative pressure to be developed at each inlet and outlet outlet of the tunnel through which the article enters and exits the tunnel. The negative pressure in turn draws in the ambient air through the inlet and the outlet over the article to thereby provide an air seal at each inlet and outlet, preventing the fluids introduced in the tunnel from escaping outwardly thereof. The fluids after rushing over the article advance into an expansion chamber formed within the tunnel midway between the inlet and the outlet and is recovered through a discharge port of the expansion chamber. Accordingly, the surface treatment of the article can be performed in a closed system so as not to worsen the working environment.

Method and apparatus for continuously applying surface treatment onto an

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Osaka, Japan

Kazuhiko Murao