Patents Assigned to Suguro Nemoto
  • Method of fabricating article by using non-sand core and article produced thereby, and core structure
    Patent number: 5667191
    Abstract: A casting is produced using a non-sand plastic core. The plastic core is made of a thermoplastic resin and set in a casting mold so as to form a cavity in the casting mold. A molten metal such as aluminum is poured under pressure into the cavity to form the casting (product). The plastic core maintains its initial shape during casting. The remaining heat of the casting or the solidifying metal causes the plastic core to melt after the casting so that the molten plastic core is easily removed.
    Type: Grant
    Filed: May 31, 1995
    Date of Patent: September 16, 1997
    Assignee: Suguro Nemoto
    Inventor: Masaru Nemoto