Patents by Inventor Mitsuo Fukunaga

Mitsuo Fukunaga 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).

  • Tension device for use in two-for-one twister
    Patent number: 4642980
    Abstract: A tension device for use in a two-for-one twister, in which the yarn insertion is made by means of compressed air, comprises a tubular tenser body provided with a yarn passage, a tenser disposed in the tenser body and adapted to close the yarn passage at a predetermined pressure to impart a tension to the yarn, and a tenser operating member provided on a portion of the tenser body and adapted to slide within a plane perpendicular to the yarn passage.
    Type: Grant
    Filed: May 21, 1986
    Date of Patent: February 17, 1987
    Assignee: Murata Kikai Kabushiki Kaisha
    Inventors: Mitsuo Fukunaga, Yoshihisa Inoue
  • Lubricant applicator for two-for-one twister
    Patent number: 4641493
    Abstract: A lubricant applying device for use in a two-for-one twister, which is mounted on a tenser and is provided with a lubricant applying means on a face thereof contacting with a yarn taken out from the yarn supply package and running through the yarn guide tube. The device comprises a hollow container for reserving a liquid lubricant therein and a cap mounted on the upper portion of the container having a lubricant applying means provided on an outer face of the cap.
    Type: Grant
    Filed: January 10, 1985
    Date of Patent: February 10, 1987
    Assignee: Murata Kikai Kabushiki Kaisha
    Inventor: Mitsuo Fukunaga
  • Yarn cutting device in twister
    Patent number: 4505099
    Abstract: A device for cutting fed yarns at a suitable position in quick response to the breakage of the yarn when a plurality of yarns are arranged and twisted together in a twisting frame. A first cutter which is operated by a detecting device and cuts the yarn on the yarn feeding side and a second cutter which is operated by the detecting device and cuts the yarn on the yarn taking out side of the twisting frame.
    Type: Grant
    Filed: September 26, 1983
    Date of Patent: March 19, 1985
    Assignee: Murata Kikai Kabushiki Kaisha
    Inventors: Mitsuo Fukunaga, Isao Nagao
  • Tension regulator in double twister
    Patent number: 4363207
    Abstract: A tension regulator in a double twister comprising a tenser body including a plurality of stages and ring tensers freely fitted in the respective stages of the tenser body. The tension regulator is mounted on the top end of a cop placed at the center of a stationary disk.
    Type: Grant
    Filed: October 2, 1980
    Date of Patent: December 14, 1982
    Assignee: Murata Kikai Kabushiki Kaisha
    Inventor: Mitsuo Fukunaga