Patents by Inventor Bo I. Wiljanen

Bo I. Wiljanen 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).

  • Device in telephone exchanges for running telephone cables from a fixed horizontal cable run to equipment in a rack shelf
    Patent number: 4860168
    Abstract: The invention relates to a cable channel A for telephone cables (7) in a telephone exchange (4). The cable channel is mounted to join up with a horizontal cable run (3) at a height (H) in the excahnge. The cable run (3) can be placed at different heights (H) in different telephone exchanges, and for enabling the use of a single type of cable channel for the cable runs (3) at different heights (H), the cable channel in accordance with the invention is one such that it is adjustable in height and includes a first part (1), and a second part (2) movable in said first part so that the height of the channel can be varied and adjusted to the height (H) of the respective cable run (3). The telephone cables (7) are taken through the cable channel A to the telephony equipment in a shelf rack (5).
    Type: Grant
    Filed: May 25, 1988
    Date of Patent: August 22, 1989
    Assignee: Telefonaktiebolaget L M Ericsson
    Inventors: Bo I. Wiljanen, Jan-Erik Karlsson