A caliper brake assembly for a bicycle having a fork, a wheel having an axle mounted in said fork, and a brake disk mounted on the wheel, the assembly including a caliper housing mounted on the fork in a position to bridge the brake disk, the housing including an arm connected to the axle and a blind...http://www.google.com/patents/US5390771?utm_source=gb-gplus-sharePatent US5390771 - Hydraulic caliper brake assembly for a bicycle
