Patents by Inventor Eduard Baur

Eduard Baur 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).

  • Method of manufacturing a hollow casting mold
    Patent number: 4291739
    Abstract: A method of manufacturing a casting mold includes the steps of forming a casting mold body of a flowable binder-free backfilling material, stabilizing the casting mold body by negative pressure, and providing in the body a lost form of synthetic plastic material, particularly foamed synthetic plastic material.
    Type: Grant
    Filed: August 16, 1979
    Date of Patent: September 29, 1981
    Inventor: Eduard Baur
  • Lost plastic pattern for casting
    Patent number: 3942583
    Abstract: Hollow "lost plastic" patterns for metal casting molds are built up from plastic plate or sheet material bonded to internal supporting framing; the elements being formed of substantially ashless plastic solid or foam rod sheets or laminates easily sculptured or bent to desired shape when heated to provide even large and complex hollow patterns with a comparatively small expenditure of pattern material and labor.
    Type: Grant
    Filed: May 27, 1970
    Date of Patent: March 9, 1976
    Inventor: Eduard Baur