Patents by Inventor Akinori Sakashita

Akinori Sakashita 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).

  • Housing type pipe coupling
    Patent number: 6227577
    Abstract: Each of the semi-circular coupling segments has pipe fastening parts. One pipe fastening part has a protrusion to be in contact with the side surface of the circumferential groove of one pipe nearer to the end of the pipe in one of the end sections thereof with respect to a circumferential direction, and a protrusion to be in contact with the side surface of the circumferential groove of the pipe farther from the end of the pipe in the other end section thereof with respect to the circumferential direction. The other pipe fastening part has a protrusion to be in contact with the side surface of the circumferential groove of the pipe farther from the end of the pipe in one of the end sections thereof with respect to the circumferential direction, and a protrusion to be in contact with the side surface of the circumferential groove of the pipe nearer to the end of the pipe in the other end section thereof with respect to the circumferential direction.
    Type: Grant
    Filed: December 22, 1998
    Date of Patent: May 8, 2001
    Assignee: Victaulic Co., of Japan, Ltd.
    Inventors: Shintaro Ikeda, Akinori Sakashita