Patents by Inventor Marianne Wieser

Marianne Wieser 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).

  • Patent number: 5288222
    Abstract: The invention relates to a mould for injection moulding machines, consisting of at least two halves of a mould, each half in turn consisting of a retaining plate and at least one mould insert fitted therein and centered relative to the retaining plate, and the front side of the mould insert is in alignment with the parting surface. The task involved is to ensure that the mould inserts can nevertheless be rapidly and easily replaced. The device is designed in such a way that the mould insert is held firmly without play, in the axial direction, i.e. transverse to the parting surface, between a thrust block acting on the back of the mould insert and at least one stop in the vicinity of the front side of the mould insert, and the thrust block can be steplessly adjusted in an axial direction relative to the retaining plate. In this way, mould inserts of any desired axial dimension can be used.
    Type: Grant
    Filed: June 16, 1992
    Date of Patent: February 22, 1994
    Inventor: Marianne Wieser
  • Patent number: 5059112
    Abstract: A mold or die having two parts with a cavity and an interface between them and a feed opening in one of the mold parts cooperates with a charge feed for raw changes and any evacuation device providing a low pressure.
    Type: Grant
    Filed: June 15, 1990
    Date of Patent: October 22, 1991
    Inventor: Marianne Wieser