Patents Assigned to Ueno Kohgyo Limited
  • Patent number: 4113202
    Abstract: A conveying truck transported by absorption force or forcing force within a transportation tube, the truck being provided at rear and front thereof with a pad for carrying wheels and a seal plate for receiving a displaceable and movable seal material within an outer peripheral groove. Each pad is supported on a rotational shaft, which projects at rear and front of the truck. By being mounted on bearings, the truck itself is rotatable relative to the pads and the seal plates.
    Type: Grant
    Filed: April 7, 1977
    Date of Patent: September 12, 1978
    Assignee: Ueno Kohgyo Limited
    Inventor: Eijiro Ueno