US Patent 7699035 Compression release mechanism

A compression release assembly is disclosed, the assembly including a camshaft rotatable about a camshaft axis, a trigger rotatable about a trigger axis substantially perpendicular to the camshaft axis, and a spring position between the trigger and the camshaft. Preferably, the trigger is rotated from an engagement position toward a disengagement position when a rotational velocity of the camshaft achieves a known value, and is rotated from the disengagement position toward the engagement position when the rotational velocity of the camshaft is below the known value.