Patents by Inventor Akio Nakane

Akio Nakane 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).

  • Apparatus for cutting inner circumferential surface of thick walled small diameter pipe
    Patent number: 5315904
    Abstract: A device for cutting the inner circumferential surface of a thick-walled small diameter pipe comprising a setting means for inserting a core bar having a cutting blade on one end thereof into a pipe to be processed, a rotating means for rotating said pipe to be processed set by the setting means about the axis thereof relative to said core bar, a feed means for cutting the inner surface of said pipe to be processed with said cutting blade while pulling the core bar which is securedly held at the other end thereof relative to said pipe to be processed, and a control means for controlling each of said means, providing a smooth high quality inner surface having excellent proof pressure against internal pressure.
    Type: Grant
    Filed: November 30, 1992
    Date of Patent: May 31, 1994
    Assignee: Usui Kokusai Sangyo Kaisha Ltd.
    Inventors: Yasuaki Hashimoto, Akio Nakane, Tadahiro Uematsu