Stephan Jonas

Hand tool comprising a dust suction device

Saw with a tool guidance mechanism with guide elements adjustable to the tool size

Manual machine tool

Electromagnetically actuated valve particularly for slip-controlled hydraulic brake systems in motor vehicles

Method and device for switching an inductor

Drum brake with locking device e.g. for vehicle, has brake drum, two brake shoes, and mechanical retention mechanism for determining brake position

Electrically operated parking brake locking method for vehicle, involves setting up medium brake pressure in one phase for pre-stressing brake, moving locking device into pre-stressed position, and increasing brake pressure in another phase

Tool for hand machine tool has heat discharged from work surface through coolant in closed chamber in base body

Electromechanical vehicle brake, has two self reinforcement devices, where each self reinforcement device includes friction brake pad, which is pressed against brake body for braking both of actuating devices

Method for testing of locking of external power operated parking brake of motor vehicle entails measuring position and/or travel of element of parking brake or locking element of brake