公开(公告)号：US11274897B2

公开(公告)日：2022-03-15

申请号：US16550186

申请日：2019-08-24

申请人： Philip S. Liu ,  Chi-Chang Liu

发明人： Philip S. Liu ,  Chi-Chang Liu

IPC分类号： F41A33/02 ,  F41A31/02

摘要： A simulation laser training cartridge for dry-firing practice adapts to the wear condition of a given firearm and provides a convenient way of measuring the barrel erosion. The cartridge uses multiple adjustable interfacing parts that can be applied selectively and independently according to the condition of the barrel to ensure a snug fit in 3-dimensions. In a 2-unit kit embodiment of the invention, the muzzle unit can work with multiple chamber units for a multi-chamber firearm. The cartridge also includes internal modules for laser property management, status monitoring, movement tracking, memory, and communication to help a user manage the device and allow for advanced training applications. By changing the laser property, the laser training cartridge can work as a bore sight. The cartridge may further include a means to attach an external part, so the external part comprises a means to distinguish a longitudinal position inside said barrel.