Patent ID: 6938303

Claim:
A dual pivot concealed hinge mechanism comprising: a body side hinge support comprising: a pivot stop; a door side hinge support having a cam surface, the cam surface terminating in a detent; and a U-shaped hinge arm pivotally connected to the body side hinge support and the door side hinge support, and comprising: a rocker arm pivotally mounted to the hinge arm and having a cam follower biased against the cam surface; and a stop linkage pivotally connected between the hinge arm and the body side hinge support, wherein the body side hinge support further comprises a torsion rod having a reaction leg, and the stop linkage further comprises a roller, the roller adapted to engage the reaction leg; and whereby the hinge mechanism is adapted to operate through a substantially semi-circular range of motion, a first portion of the range of motion pivoting the door side hinge support relative to the hinge arm as the cam follower traverses the cam surface, until the cam follower engages the detent, and a second portion of the range of motion pivoting the hinge arm relative to the body side hinge support until the stop linkage engages the pivot stop.