Patent ID: 6338217
Filing Date: 2002-01-15
Classification: F41A

Abstract:
An internal locking mechanism for firearms having an enclosed striker assembly, comprising:A) a spacer sleeve assembly having first and second ends, between said first and second end a longitudinal channel, said longitudinal channel extending from a first predetermined distance from said first end towards said second end a second predetermined distance without reaching said second end, said longitudinal channel having third and fourth ends, includes a first notch closest to said third end, a second notch located at a third predetermined distance from said third end, and a third notch closest to said fourth end, said first end including a first recess; B) a firing pin assembly having a shaft with fifth and sixth ends, said fifth end having a leg extending radially outwardly a fourth predetermined distance and said sixth end including a firing pin, said firing pin assembly further includes a stopper surface mounted at a fifth predetermined distance from said fifth end without reaching said sixth end and a spring member partially housing said shaft, said spring member includes seventh and eighth ends, said seventh end coacts against said second end that in turn coacts with said leg, keeping said spring biased towards said second end, said second end having cooperative dimensions to coact with said spring and selectively causing said spring member to compress against said stopper surface; C) a key plate assembly having inner and outer walls, said key plate having a first through opening, said inner wall including a second recess with mating cooperative characteristics to receive said first end of said spacer sleeve assembly; and D) means for rotating said spacer sleeve assembly through said first through opening so that said leg is selectively brought in alignment with said second or third notch thereby restricting the travel of said shaft, and in alignment with said longitudinal channel having unobstructed travel that permits the operation of said firearm.