Patents by Inventor Teiji Nakahara

Teiji Nakahara 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
    Patent number: 4574576
    Abstract: A ring tenser for a twisting machine. The ring is loosely fitted from above a head portion of the tenser body having a shoulder formed on an outer circumferential surface thereof and is placed on the shoulder of the tenser body so that a yarn unwound from a package is passed between the ring and the shoulder. One of the head portion of the tenser body and the ring is made of a metal material while the other includes a magnet.
    Type: Grant
    Filed: September 1, 1983
    Date of Patent: March 11, 1986
    Assignee: Murata Kikai Kabushiki Kaisha
    Inventors: Teiji Nakahara, Toshinori Shibao, Kazuyuki Fujiwara
  • Spinning machine with a doffing apparatus
    Patent number: 4535944
    Abstract: A spinning machine wherein a yarn knotting truck having a knotter provided thereon travels in a truck travelling spacing provided along a number of spinning units further includes an apparatus for automatically doffing winding packages which have yarns fully wound thereon. A doffing truck which has provided thereon a doffing apparatus travels in the truck travelling spacing.
    Type: Grant
    Filed: July 15, 1983
    Date of Patent: August 20, 1985
    Assignee: Murata Kikai Kabushiki Kaisha
    Inventors: Teiji Nakahara, Shoji Sakai, Koshi Noda, Michiaki Fujiwara, Nobunori Kubota
  • Method for producing spun yarns
    Patent number: 4497167
    Abstract: A spun yarn is manufactured from a sliver through an action of a first fluid swirling nozzle and a second fluid swirling nozzle capable of swirling a fluid in a direction opposite to the direction of swirling of a fluid in the first fluid swirling nozzle. Fibers detached from a sliver between a front roller assembly and a first fluid swirling nozzle are caused to wind positively around the twisted fibers during spinning operation.
    Type: Grant
    Filed: February 2, 1983
    Date of Patent: February 5, 1985
    Assignee: Murata Kikai Kabushiki Kaisha
    Inventors: Teiji Nakahara, Toshifumi Morihashi
  • High draft apparatus in spinning machine
    Patent number: 4387487
    Abstract: A high draft apparatus in a spinning machine for forming a spun yarn from a roving or sliver. The draft apparatus comprises back rollers, apron-provided middle rollers and front rollers and a gripping and a pressing means for a sliver disposed on the front end portion of the apron so that the arrangement of fibers in the drafted sliver is regulated and a high draft ratio can be attained.
    Type: Grant
    Filed: October 14, 1980
    Date of Patent: June 14, 1983
    Assignee: Murata Kikai Kabushiki Kaisha
    Inventors: Teiji Nakahara, Toshifumi Morihashi, Teruo Nakayama, Shinichi Nishimura, Hisaaki Kato, Ikuzo Uematsu, Takashi Yoshioka