Patents Assigned to Kabushiki Kaisha Miyano Seisakusho
  • Patent number: 4567963
    Abstract: A device utilizing energy conversion into heat by eddy currents for braking the descent of a refugee as from higher stories of a building in the event of a fire or other emergency. Included is a payoff reel rotatably mounted on a frame for paying off wire rope. The payoff reel is coupled via overdrive gears to a rotor of electrically conductive material which also is rotatably mounted on the frame and which rotates at a greatly increased speed in response to the rotation of the payoff reel. A permanent magnet or magnets of generally annular configuration are secured to the frame in an opposed relation to the rotor for inducing eddy currents therein upon rotation of the payoff reel. The induced eddy currents convert the energy of the revolving payoff reel into heat.
    Type: Grant
    Filed: May 22, 1984
    Date of Patent: February 4, 1986
    Assignee: Kabushiki Kaisha Miyano Seisakusho
    Inventor: Kazutoshi Sugimoto