Patents by Inventor Kouichi Higashinaka

Kouichi Higashinaka 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).

  • Dustproof chute for particulate material loader
    Patent number: 4225033
    Abstract: A dustproof chute for a particulate material loader including an airtight elastic tubular member located below a particulate material feeding device and defining by its wall a space below the particulate material feeding device, a discharge end tubular member of small length connected to a lower end of the airtight elastic tubular member, a particulate material stream diameter controlling tubular member located in a space within an upper end portion of the airtight elastic tubular member and permitting a particulate material fed by the particulate material feeding device to flow downwardly therethrough in a stream, and a ventilating space surrounding the particulate material stream diameter controlling tubular member and communicating with the particulate material feeding device.
    Type: Grant
    Filed: October 19, 1978
    Date of Patent: September 30, 1980
    Assignee: Hitachi Metals, Ltd.
    Inventors: Kouichi Fukagai, Kouichi Higashinaka, Kazuo Shirasaki