Patents Assigned to Dai-Ich Seiko Co., Ltd.
  • Valve for pneumatic tires
    Patent number: 4236565
    Abstract: A valve for pneumatic tires comprising a stem made of plastics and having at least one longitudinal groove on its inner surface and a plunger having a flange, which has at least one protuberance, and arranged so that the plunger is inserted to the stem by fitting the protuberance of the flange into the longitudinal groove of the stem and that the number of component parts is small and assembly is easy.
    Type: Grant
    Filed: August 11, 1977
    Date of Patent: December 2, 1980
    Assignee: Dai-Ich Seiko Co., Ltd.
    Inventor: Kiyoshi Iwabuchi