Patents Assigned to Maruho Sangyo Kabushiki Kaisha
  • Patent number: 5635675
    Abstract: A bendable protective tube for buried cables, wherein a plurality of cylindrically formed highly rigid resin tube bodies are connected together unitarily via cylindrical resin nodes bent so as to have a substantially S-shaped cross section. Each of the nodes has a rigid portion and a deformable portion covered with and protected by the rigid portion. Owing to this structure, the deformable portion of the node is freely deformable. The protective tube as a whole has a flexibility, and an external force is restricted to be imparted to the deformable portion by the rigid portion.
    Type: Grant
    Filed: October 26, 1994
    Date of Patent: June 3, 1997
    Assignee: Maruho Sangyo Kabushiki Kaisha
    Inventor: Morinobu Houga