Patents by Inventor Takatoshi Ikio

Takatoshi Ikio has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 4086231
    Abstract: A coke oven door for a coke oven which has an oven opening with a receiving frame extending around the opening comprises a door body with a sealing plate secured to the face of the door body which is adapted to close the oven opening. The sealing plate is of thin metal material and is held in spaced relationship to the front face of the door body by spacers. The plate includes an annular peripheral portion with an inturned flange directed inwardly toward the receiving frame. Spring biasing means mounted on the door engage against the rear edge of the flange at spaced locations around its periphery and bias the flange inwardly into sealing engagement with the receiving frame.
    Type: Grant
    Filed: October 28, 1975
    Date of Patent: April 25, 1978
    Inventor: Takatoshi Ikio
  • Patent number: 3948397
    Abstract: A coke oven door lifter for a coke oven door, having a horizontal support bar and a spring biased locking bar, includes a lifter housing or frame having a vertical trackway therein. A movable member is guided in the trackway for vertical upward and downward movement and it carries a support arm which is engageable with the horizontal support bar of the coke oven door to lift it when the movable member is moved upwardly. A locking bar release member comprises a piston displaceable in a fluid pressure controlled cylinder which is displaced after the movable member is moved upwardly to contact and disengage the locking bar. The movable member is moved by a piston movable in a fluid pressure cylinder after the lifter housing or frame is moved into association with the door.
    Type: Grant
    Filed: March 13, 1974
    Date of Patent: April 6, 1976
    Inventor: Takatoshi Ikio