Elways has applied for twenty Swedish patents of which seventeen so far has resulted in approved patents. Elways also has seventeen PCT applications and thirty-nine non Swedish national applications. The patents and patent applications cover the system and the various solutions that are needed to achieve conductive feeding of vehicles while driving.
The patents that have been published at the Swedish Patent and Registration Office can be found at The Swedish Patent Database.
Of the total seventeen inventions, seven have so far been approved for patents and are described more in detail below.
The detection of the rail by the contact arm is done by means of magnetic fields. There are two possible methods we have patented. One is to send out a high frequency magnetic field and detect distortion in this field caused by the rail and interpret this distortion as a position. The other method is that the rail itself emits a magnetic field that is detected and analysed.
Cleansing of the track
In order to keep the track free from smaller objects, water and snow a number of solutions have been patented.
Based on our calculations and tests, the contact has been patented.
The link below shows the patented design of the movable arm, which moves the contact to maintain the feed to the vehicle.
In order to keep the track free from snow the following solution has been patented.
Design of the rail
The following design of the rail has been patented.