Abstract: A method to access a control system for a gate or a door, wherein the control system includes a fingerprint sensor, a scanner for capturing a fingerprint as a user identifier for a user, a sensor element for activating the scanner and a computer unit, which stores a number of user identifiers. A fingerprint captured using the scanner is compared, as a currently input user identifier, with the user identifiers which are stored in the computer unit. If there is a match between the currently input user identifier and a stored user identifier, the fingerprint sensor outputs a control signal to a control unit, as a result of which the latter operates the gate or the door. Signals generated in the scanner are used to selectively call individual memory locations in the computer unit in order to erase or store individual user identifiers therein.

Abstract: A weight compensation system is provided for a motor driven door having a door leaf that is driven by a mechanism inside guide rails on a side of the door leaf to move the door between an opened position and a closed position. The weight compensation system includes a weight-compensation device comprising a cable unit and a spring unit arranged at least on one side of the door leaf, wherein the cable unit comprises a single cable. A cable-tension compensation device at which the single cable is deflected creates two cable strands that are secured against breakage within the cable-tension compensation device. The cable-tension compensation device is positioned locally fixed or secured to the door leaf so that two cable strands move at a distance to each other, and the exposed ends of the cable are guided together and attached to the door leaf or are positioned locally fixed, respectively.

Abstract: A drive system for a door having a door leaf guided laterally in guide rails. A carriage, which is connected to the upper edge of the door leaf in an articulated manner, is arranged to be guided along one of the guide rails. Conductive tracks running along the guide rail are provided for supplying power to a motor driving the carriage. The conductive tracks can optionally be contacted at the front or back ends thereof.

Abstract: The invention relates to a drive system for a gate, the gate panel thereof being guided in a guide rail on each side. A carriage is guided in one of the guide rails, and a pusher arm is joined with a hinge to the carriage and the upper edge of the gate panel. A motor is supported on the pusher arm.