Patent ID: 6295753
Filing Date: 2001-10-02
Classification: F41A,F41G

Abstract:
A laser precision bore sight assembly for bore sight alignment of a laser beam along the longitudinal axis of a gun barrel, comprising:an elongated bore shaft having a longitudinal axis and adapted to having a proximate end thereof inserted into the bore of the gun barrel;a compressible barrel-shaped insert which is rotatably mounted to the proximate end of the bore shaft and which has a continuous outer surface which is adapted to be inserted in the gun barrel to resiliently engage the inside wall of the gun barrel such that a longitudinal axis of approximate end of the bore shaft is coaxially aligned with the longitudinal axis of the gun barrel;at the distal end of the bore shaft is provided an alignment cone which has an external distally increasing conical surface which is adapted to engage a distal inner edge of the gun barrel in order to coaxially align a distal end of the bore shaft for rotation about the longitudinal axis of the gun barrel;a battery/switch housing which is coaxially mounted adjacent to the alignment cone and which contains an electrical switch assemble;a laser housing assembly which is coaxially mounted to the battery/switch housing and which contains a laser subassembly having a laser source which provides a laser beam in a direction coaxial with the longitudinal axis of the bore shaft;wherein the battery/switch housing and the laser housing assembly have longitudinal end bores formed therein to provide an enclosure therebetween for a battery for powering the laser source; andwherein the battery/switch housing and the laser housing assembly have corresponding mating threads formed thereon to provide for relative longitudinal movement therebetween when rotated with respect to each other such that a terminal of the battery engages the switch assembly to activate the laser source.