Patents by Inventor Arild Nilsen

Arild Nilsen 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).

  • Patent number: 5987306
    Abstract: A system and method monitors telephone networks and/or data communication networks, especially cellular mobile telephone networks (CeN), and provides good evidence of performance and quality of the services to be delivered by the network. At the same time, the system and method is easy to handle and includes components that require only small spaces and that are effective in use. According to the invention, a method and system (CeNA) includes one or more fixed and/or mobile units (FTU, MTU), herein designated as field units or test units, that enable quality observations and communication with a network operator or operation center (CU).
    Type: Grant
    Filed: April 8, 1997
    Date of Patent: November 16, 1999
    Assignee: Telefonaktiebolaget L M Ericsson
    Inventors: Arild Nilsen, Rune Berntzen
  • Patent number: 4869345
    Abstract: This invention relates to a collapsible ladder for carrying out work on the surface of convex buildings as radomes and other domes. The ladder--the radome ladder--consists of a number of straight sections which are hinged together by means of brackets which are articulated externally to a section end piece at the end of each ladder section. These end pieces can be changed to suit the diameter of the dome, and the length of each ladder section, in such a way that the ladder, when unfolded, forms, in essence, an arch parallel with the surface of the dome. In each section end piece there is a castor which rolls along the dome, permitting the radome ladder to be moved sideways with ease.
    Type: Grant
    Filed: July 8, 1988
    Date of Patent: September 26, 1989
    Inventor: Arild Nilsen
  • Patent number: 4702347
    Abstract: A folding fire-escape ladder with safety belt, made of two U-shaped channels (A,S), which form the side rails, and rungs (W) of square tubing. The rungs are attached to the side rails by articulated joints. The ladder has a burglar proofing device on the top (J,K). One or more separate release points at escape stations can be installed by sawing through the outer rail (A) to form at least two sections thereof and by fixing a release bracket (O) to a section of the outer rail (A) above the cut. The release bracket (O) has a collar (R) which replaces the material removed by the saw. Joining the upper and lower sections of the outer rail (A) at the release point/escape station is achieved by a locking plug (K) which is fitted through axially aligned holes in the outer rail (A) and the release bracket (O).
    Type: Grant
    Filed: May 28, 1986
    Date of Patent: October 27, 1987
    Inventor: Arild Nilsen