Patent ID: 7546909

Claim:
A lever assembly comprising: (A) a lever including an input arm having a substantially fixed length and an output arm having a variable length, the output arm length being the distance between (1) a fulcrum about which the lever pivots and that is fixed with respect to a master cylinder body and (2) a contact surface of the lever and a force transmitting member, wherein the lever output arm (1) is moveable with respect to the fulcrum and (2) is configured to be pivotable about a master cylinder, the master cylinder having a master cylinder piston situated therein; (B) an adjuster mechanism that is housed within the lever and that pivots on the fulcrum, wherein movement of the adjuster mechanism moves the entire lever linearly with respect to the fulcrum along a longitudinal axis of an elongated slot, and changes a ratio of the output arm length to the input arm length; and (C) a push rod having a first end and a second end, wherein the first end is pivotally secured to the force transmitting member and the second end is pivotally secured to the master cylinder piston.