The brake system for a motor vehicle has an electromechanical wheel brake actuator mounted on each brake caliper of each wheel. The actuator is controlled by the brake pedal through electric lines and it has a brake piston disposed in a cylindrical bore formed therein. A spindle drive moves the brake...http://www.google.ca/patents/US5915504?utm_source=gb-gplus-sharePatent US5915504 - Brake system for a motor vehicle