Patents by Inventor Hiroki Monno

Hiroki Monno 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).

  • Device for sealing the end of sheath pipe
    Patent number: 3964754
    Abstract: Device for sealing the end of a sheath pipe that protects a main pipe therein, comprising a pair of sealing rings arranged in face-to-face relation, a pair of flanges oppositely placed at the outside of said sealing rings, all these sealing rings and flanges being tightened with bolts into a unit, each sealing ring being made of flexibly elastic material having a cup shape cross section.
    Type: Grant
    Filed: May 19, 1975
    Date of Patent: June 22, 1976
    Assignee: Nishiyama Gomu Kabushiki Kaisha
    Inventors: Masayo Murai, Hiroki Monno