Patents by Inventor Kiyoshige Torikai

Kiyoshige Torikai 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).

  • Vacuum forming or reduced-pressure moulding
    Patent number: 4129164
    Abstract: In a method for reduced-pressure mould production, a plurality of mould flasks are simultaneously evacuated by evacuating means, and in which production of the moulds is carried out while moving the mould flasks sequentially through a mould shaping position, a pouring position and a mould disintegrating position. Evacuation is effected by first evacuating means during a period from the beginning of mould shaping to the beginning of mould pouring and a period after pouring, and evacuation is effected more strongly by second evacuating means during the period of pouring.
    Type: Grant
    Filed: January 24, 1977
    Date of Patent: December 12, 1978
    Assignee: Mitsubishi Jukogyo Kabushiki Kaisha
    Inventor: Kiyoshige Torikai