Patents Assigned to Topacs, Incorporation
  • Cylindrical winding core for carrying a roll of elongated windable material
    Patent number: 3952963
    Abstract: A cylindrical winding core for carrying a roll of elongated flexible material, the core having an anti-slack flexible member and being capable of adapting to rolls of different inner diameters. The core can be advantageously used for preventing a roll of paper strip or tape such as paper punch tapes used in electronic computers from slackening.
    Type: Grant
    Filed: October 4, 1974
    Date of Patent: April 27, 1976
    Assignees: Mitsui Toatsu Chemicals, Incorporated, Topacs, Incorporation
    Inventors: Niro Ueno, Ippei Shiraishi