Patents by Inventor Dan L. Costescu

Dan L. Costescu 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).

  • Apparatus on the carousel principle for coating substrates
    Patent number: 4886592
    Abstract: A rotatable substrate holder (6) which has a plurality of substrate pickups in a circular arrangement at equal distances apart is disposed in a vacuum chamber (1). A corresponding number of substrates are driven stepwise on a circular path from an air lock station (8, 9) through at least one coating station (10, 11) to the air lock station. To increase the throughput of substrates, the vacuum chamber (1) has two air lock stations (8, 9) and two coating stations (10, 11) one following the other.
    Type: Grant
    Filed: May 20, 1988
    Date of Patent: December 12, 1989
    Assignee: Leybold Aktiengesellschaft
    Inventors: Friedrich Anderle, Dan L. Costescu, Stefan Kempf, Emmerich Novak, Jaroslav Zejda