Patents Examined by T. L. Flower
  • Joint structure of bezel and watch body
    Patent number: 4408900
    Abstract: A joint structure of a watch body and a bezel comprising a watch body with a joint surface, a bezel with a joint surface, at least one projection extending from one of the joint surfaces welded onto the other surface, a space between said surfaces and connecting material filling said space. By thus constructing, the watch body and bezel have a durable water and air tight joint.
    Type: Grant
    Filed: April 17, 1981
    Date of Patent: October 11, 1983
    Assignee: Citizen Watch Company Limited
    Inventors: Tsuneji Takasugi, Seiji Umezawa
  • Method for fabricating a watch case
    Patent number: 4382172
    Abstract: A method for fabricating a watch case comprising the steps of placing contact points of a bezel and a watch body to face to each other, applying pressure to said contact points through electrodes, and applying pulse current to said electrodes until said contact points get molten. The pulse current will allow the bezel and the body except the contact points to cool down during its intervals. Therefore, this method does not require a water-cooling system as required by conventional methods.
    Type: Grant
    Filed: April 17, 1981
    Date of Patent: May 3, 1983
    Assignee: Citizen Watch Co., Ltd.
    Inventors: Tsuneji Takasugi, Seiji Umezawa