Patents by Inventor Adolf Weigand

Adolf Weigand 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).

  • Assembly of an externally ventilated semiconductor arrangement
    Patent number: 4459638
    Abstract: A semiconductor circuit arrangement including at least one semiconductor unit provided with a base plate and semiconductor element electrically insulated against the base plate, current conductors connected to the semiconductor unit and a cooling member supporting the semiconductor unit. The arrangement includes a cooling air channel which is divided into a first zone enclosing the cooling member and a second zone enclosing the semiconductor unit and the current conductors connected thereto. A fan is connected for circulating air in the cooling channel. A baffle plate is disposed in the second zone at a distance from the cooling member and is provided with openings for passage of the current conductors. A circuit board for supporting additional circuit elements is disposed to delimit one dimension of the second zone.
    Type: Grant
    Filed: November 4, 1981
    Date of Patent: July 10, 1984
    Assignee: SEMIKRON Gesellschaft fur Gleichrichterbau und Elektronik
    Inventors: Heinz Brehm, Adolf Weigand