The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 25, 1993
Filed:
Jun. 16, 1992
Sture G Roos, Bergshamra, SE;
Telefonaktiebolaget L M Ericsson, Stockholm, SE;
Abstract
A galvanic switch for electrically making or breaking one cross-point among a plurality of cross-points in a three-dimensional switching matrix. The switch includes electrical contact lines, first links which extend perpendicular to the contact lines, and second links which extend perpendicular to both the contact lines and the first links. At each cross-point, there is located a contact element in the form of a spherical element for making and breaking the electric contact respectively. The contact elements either make or break the cross-point depending on whether the coupling element is conductive or non-conductive, and are maneuvered by maneuvering elements. In a first selection, first maneuvering elements are maneuvered so as to move all coupling elements simultaneously in a chosen first plane of cross-points, where-after second maneuvering elements are maneuvered so as to move simultaneously all of the coupling elements moved by the first maneuvering element in the intersection between the first selected plane and a selected second plane of cross-points. Maneuvering of third maneuvering elements for moving the coupling element moved by the first and the second maneuvering elements in the intersection between the selected second plane and a selected third plane is utilized as a coupling function for bringing into the cross-point a coupling element of opposite kind to the coupling element already present in the cross-points.