Patents by Inventor Karl F. Osterman

Karl F. Osterman 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).

  • Arrangement in cooling circuit boards
    Patent number: 4730233
    Abstract: An arrangement for cooling circuit boards (2) which are accommodated in magazines (1) in an cabinet (3). Each magazine is assigned a regulator plate (6) having a plurality of through holes (9,10,11) and/or slots (12), the sizes and positions of which are selected such that the air flows are adjusted to the cooling needs depending on the heat generation of components on the respective boards.
    Type: Grant
    Filed: June 27, 1986
    Date of Patent: March 8, 1988
    Assignee: Telefonaktiebolaget LM Ericsson
    Inventor: Karl F. Osterman