Patents Examined by J. S. Brown
  • Moulding for the heat retention of feeder head in casting molten metals
    Patent number: 4025047
    Abstract: A moulding for the heat retention of feeder head top surface in casting molten metals is based on a mixture consisting of charcoal and a binder, and said charcoal is laminated with directional properties in the laterial direction. If circumstances require, the moulding may contain at least one component selected from the group consisting of thermo-expansible materials, organic binders and organic fibrous materials, and further when occasion demands it may be coated with a shell containing fibrous materials and a binder.
    Type: Grant
    Filed: June 27, 1975
    Date of Patent: May 24, 1977
    Assignee: Aikoh Co., Ltd.
    Inventor: Masaru Takashima