US Patent 7396026 Shopping cart brake

A cable operated shopping cart brake apparatus for fitting to an existing shopping cart or other like wheeled vehicle to provide selectively impeded movement. The cable assembly connects a master brake assembly to a slave brake assembly. The cable attachment on the master assembly is reversible, whereby in one mode the resting position of the actuator engages the cart brake, thereby impeding cart movement. The reversed mode provides disengagement of the brake in the rest position of the actuator. The actuator position is lockable so that the above 2 modes are possible. A button of the lock provides disengagement.