Patents by Inventor Sune A. W. revik

Sune A. W. revik 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).

  • Method and apparatus for the charging and supervision of a battery
    Patent number: 4225815
    Abstract: Method and apparatus for the charging a battery which as a stand-by supply is connected to the output of a controllable rectifier supplying a load measures the charging current from the rectifier to the battery at certain instants in order to obtain the change of the charging current, the current value at each measuring instant being stored and, after that, the value being compared with the value of any of the previous measuring instants. The result of this comparison is used as a control condition for a controllable rectifier in order to determine the output voltage from the rectifier.
    Type: Grant
    Filed: February 1, 1978
    Date of Patent: September 30, 1980
    Assignee: Telefonaktiebolaget L M Ericsson
    Inventors: Hans S. H. Lind, Sune A. W. revik