Patents by Inventor Wilfried Stoessl

Wilfried Stoessl 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).

  • Crucible cover for coating installation with an electron beam source
    Patent number: 4944245
    Abstract: A hood type cover (4) with lifting mechanism is engaged over a crucible (1) with several material pockets (2, 3). By means of the lifting mechanism, the distance between a surface (5) of the crucible and a seal (8) on the cover (4) is varied. The lifting mechanism comprises a track (12) disposed on the wall (16) of the crucible (1). Engaged in this track are guided elements which are connected to the cover and are forcibly guided and moved upon rotary movements of the crucible (1). These guiding elements bring about a pivoting of the cover (4) or a displacement of the cover (4) or of the crucible (1) parallel to the central axis (17) of the crucible (1). This arrangement of the cover (4) permits a safe positioning of the material pockets (2, 3) inside the vacuum chamber of a coating installation.
    Type: Grant
    Filed: January 16, 1990
    Date of Patent: July 31, 1990
    Assignee: Balzers Aktiengesellschaft
    Inventors: Wilfried Stoessl, Christian Beusch, Martin Boesch, Peter Niggli