Patent ID: 8783423

Claim:
A brake system for a disc brake having a rotor and a caliper for an automotive vehicle comprising: a plurality of brake pads located in the caliper and situated on one side of the rotor; a plurality of hydraulically actuated pistons to actuate the plurality of brake pads; a sealing mechanism situated in a hydraulic sealing chamber in direct fluid communication with a main brake line of the brake system, the sealing mechanism operating to regulate hydraulic pressure supplied by the brake system to the caliper; wherein the plurality of brake pads are configured to be in a first braking state, a second braking state and a third braking state via the supply of hydraulic pressure to the caliper, the plurality of brake pads selectively in one of the first state, the second state or the third state based on an amount of hydraulic pressure supplied to the caliper and applied by a user, wherein in the first state hydraulic pressure is supplied to the caliper and no hydraulic pressure is applied by the user, at least one brake pad from the plurality of brake pads is in contact with the rotor, the hydraulic pressure supplied to the caliper maintains contact of the at least one brake pad with the rotor, the forces that maintain contact of the at least one brake pad with the rotor are generated solely via the supply of hydraulic pressure, and at least one different brake pad from the plurality of brake pads is offset from the rotor, the at least one brake pad always remaining in at least the first state while the vehicle is in motion, and, wherein in the second state where hydraulic pressure is supplied to the caliper and a first amount of hydraulic pressure is applied by the user to the plurality of brake pads, the at least one brake pad is in contact with the rotor and applying a first braking force to the rotor, the hydraulic pressure supplied to the caliper maintains contact of the at least one brake pad with the rotor, and the at least one different brake pad is offset from the rotor, and wherein in the third state where hydraulic pressure is supplied to the caliper and a second amount of hydraulic pressure is applied by the user to the plurality of brake pads, the at least one brake pad and the at least one different brake pad are both in contact with the rotor and applying a second braking force to the rotor, and the hydraulic pressure supplied to the caliper maintains contact of the at least one brake pad and the at least one different brake pad with the rotor.