Patents by Inventor Kiyoshi Takeshita

Kiyoshi Takeshita 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).

  • Yarn draw off tube for open-end spinning unit
    Patent number: 4481766
    Abstract: A yarn draw off tube for an open-end spinning unit which improves the twist transmission to a fiber ribbon in a spinning rotor. The yarn draw off tube is provided with a yarn inlet on the top wall thereof and a yarn outlet on the lower side wall thereof, and the yarn inlet is eccentric from the center in a direction opposite to the yarn outlet. In the spinning operation, a twist imparted to a yarn drawn off from the spinning rotor can smoothly be transmitted to the root portion thereof. Thereby, yarn breakage is restrained and a yarn of good appearance and strength can be obtained.
    Type: Grant
    Filed: December 29, 1982
    Date of Patent: November 13, 1984
    Assignee: Kabushiki Kaisha Toyoda Jidoshokki Seisakusho
    Inventors: Tadanori Kurushima, Kiyoshi Takeshita, Kazuo Kamiya