Patents by Inventor Hiroo Akabane

Hiroo Akabane 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).

  • Patent number: 4770684
    Abstract: An apparatus for production of compression-solidified snow comprises a pressure chamber with a rust preventive inner face, a pressure head for applying pressure to snow, a boost-typed pressure cylinder installed at one end of the pressure chamber and equipped with the pressure head, a hopper having an inner face which allows snow to slide thereon smoothly, and a pusher installed in a snow compression zone at the other end of the pressure chamber. A method of compressing snow into solidified snow lump is characterized in that snow having a temperature of 0.degree. to -30.degree. C. is compressed and formed with a pressure of 10 to 200 kg/cm.sup.2 at a head displacement velocity of 0.1 to 150 mm/sec for pressure holding time of 0.about.300 seconds into a solid having a density of 0.6 g/cm.sup.3 or more.
    Type: Grant
    Filed: March 16, 1987
    Date of Patent: September 13, 1988
    Assignee: The Japan Steel Works, Ltd.
    Inventors: Hisashi Tsukada, Takahiro Abe, Sugio Ishihara, Junichi Taira, Hiroo Akabane
  • Patent number: 4745763
    Abstract: An apparatus for production of compression-solidified snow comprises a pressure chamber with a rust preventive inner face, a pressure head for applying pressure to snow, a boost-typed pressure cylinder installed at one end of the pressure chamber and equipped with the pressure head, a hopper having an inner face which allows snow to slide thereon smoothly, and a pusher installed in a snow compression zone at the other end of the pressure chamber. A method of compressing snow into solidified snow lump is characterized in that snow having a temperature of 0.degree. to -30.degree. C. is compressed and formed with a pressure of 10 to 200 kg/cm.sup.2 at a head displacement velocity of 0.1 to 150 mm/sec for pressure holding time of 0-300 seconds into a solid having a density of 0.6 g/cm.sup.3 or more.
    Type: Grant
    Filed: October 8, 1987
    Date of Patent: May 24, 1988
    Assignee: The Japan Steel Works, Ltd.
    Inventors: Hisashi Tsukada, Takahiro Abe, Sugio Ishihara, Junichi Taira, Hiroo Akabane