Patents by Inventor Bertil Ericsson

Bertil Ericsson 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 for improving communication systems
    Patent number: 6580341
    Abstract: The present invention relates to a single-piece center conductor (15) for a LC-filter, and a LC-filter comprising at least one such center conductor. The center conductor comprises a first end section (20) with axially form confining fixing means and a second end section with means for direct connection to connecting means of a connector. A general object of the present invention is to provide an improved apparatus for connecting a LC-filter with a connector in terms of intermodulation interference, contact area with the LC-filter, accurate fastening to the LC-filter, assembly time, manufacturing, storage costs and logistics costs.
    Type: Grant
    Filed: March 2, 2001
    Date of Patent: June 17, 2003
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Uno Henningsson, Matti Liikamaa, Bertil Ericsson
  • Apparatus for improving communication systems
    Publication number: 20020053956
    Abstract: The present invention relates to a single-piece center conductor (15) for a LC-filter, and a LC-filter comprising at least one such center conductor. The center conductor comprises a first end section (20) with axially form confining fixing means and a second end section with means for direct connection to connecting means of a connector. A general object of the present invention is to provide an improved apparatus for conneting a LC-filter with a connector in terms of intermodulation interference, contact area with the LC-filter, accurate fastening to the LC-filter, assembly time, manufacturing, storage costs and logistics costs.
    Type: Application
    Filed: March 2, 2001
    Publication date: May 9, 2002
    Inventors: Uno Henningsson, Matti Liikamaa, Bertil Ericsson
  • Building structure
    Patent number: 4891923
    Abstract: A building structure comprises interconnectable structural building elements (1, 2, 3), said structural building elements (1, 2, 3) comprising, for the interconnection, female and male edge portions (4, 5) for engagement with the adjacent structural building elements (1, 2, 3). The structural building elements (1, 2, 3) are formed by two rigid surface layers (6, 7) and a continuous insulating layer (8) located therebetween. The male edge portions (4) are formed by the substantially continuous insulating layer (8) and by the two rigid surface layer (6, 7), each of which comprise a step (9), on the surfaces (10, 11) turned away from the insulating layer (8) in the transition between the male edge portions (4) and the other portions of the structural building elements (1, 2, 3).
    Type: Grant
    Filed: June 7, 1988
    Date of Patent: January 9, 1990
    Inventors: Karl-Gustav Ericsson, Bertil Ericsson