Patent ID: 6640479
Filing Date: 2003-11-04
Classification: F41A

Abstract:
For use with a firearm, a hammer release apparatus comprising:a pivotably mounted hammer including a stop notch and a projection; a hammer spring operably connected to the hammer for generating a rotational force biasing the hammer from a cocked position toward a firing position; a pivotably mounted trigger having an engagement nose disposed at one end; a trigger spring operably coupled to the trigger for biasing the trigger to a rest position, the trigger being actuatable against a force of the trigger spring from a rest position into a depressed position; a pivotably mounted trigger lever having one end disposed to engage the stop notch of the hammer, and an opposed end disposed to engage the trigger engagement nose; a pivotably mounted restraining apparatus having a catch disposed to restrainingly engage the projection of the hammer, the restraining apparatus shiftable between a first position in which only the trigger lever engages the hammer in the cocked position, creating a first pull resistance, and a second position in which the restraining apparatus and the trigger lever simultaneously engage the hammer in the cocked position, creating a second pull resistance lesser than the first pull resistance; and a restraining spring operably connected to the restraining apparatus and generating a force counter to the rotational force of the hammer spring.