Patent ID: 7639160
Filing Date: 2009-12-29
Classification: B61L,H05K,Y10T

Abstract:
1. A railway beacon designed for laying along a railway line and comprising: a casing supporting at least one electronic circuit, which receives an electromagnetic enabling signal from a vehicle travelling along the railway line, and generates a coded response signal, transmitted to the vehicle and containing information relative to travel of the vehicle; and a receiving antenna and a transmitting antenna, both carried by said casing and cooperating with said electronic circuit; characterized in that said casing is formed in one piece from insulating material; said casing having at least one sunken seat housing at least one printed circuit defining said electronic circuit; said sunken seat being filled with solidified insulating resin embedding said printed circuit and the electronic components on the printed circuit; and said insulating resin containing no air, in particular no air bubbles, and comprising no water in its composition wherein said receiving antenna and said transmitting antenna comprise a supporting structure defined by a number of elongated printed circuits communicating electrically with one another and forming a frame structure; each elongated printed circuit comprising first conducting tracks connected to respective first conducting tracks of other elongated printed circuits to form, as a whole, said receiving antenna; and each elongated printed circuit also comprising second conducting tracks connected to respective second conducting tracks of the other elongated printed circuits to form, as a whole, said transmitting antenna.