1

2
André Colens: Self-propelled lawn mower. Pillsbury Winthrop, November 27, 2001: US06321515 (126 worldwide citation)

The invention concerns a self-propelled lawn mower and a method adapted for using said machine. The machine comprises: a mobile frame (


3
André Colens: Self-propelled lawn mower. Morgan Lewis & Bockius, October 10, 2006: US07117660 (12 worldwide citation)

A self-propelled lawn mower comprising a microprocessor and at least one cutter (10), wherein an elastic tension element (13) that is connected to the frame of the lawn mower and the at least one cutter (10) is provided. Central automatic adjustment of the height of the cutters (10) in relation to t ...


4
André Colens: Method for controlling an autonomous mobile robot and related device. Husqvarna, August 31, 2010: US07787989 (3 worldwide citation)

The invention concerns a navigation device for a mobile robot comprising means for measuring the amplitude and the phase of an electromagnetic signal emitted by a wire acting as limit for a working area of the robot. The measuring means samples the amplitude of the signal during each time interval, ...