Patent ID: 7354271

Claim:
A training device for simulating a grenade, comprising a housing having substantially the same weight and dimensions as the housing of the grenade being simulated, said housing comprising: a threaded opening in a top portion of said housing, wherein the threading of the threaded opening is the reverse of the threading of the threaded opening in the grenade being simulated; and a plurality of vents surrounding a periphery of the threaded opening; and a fuze assembly having substantially the same dimensions as the fuze assembly of the grenade being simulated, said fuze assembly comprising: a threaded portion which screws into the threaded opening of the housing, wherein the threading of the threaded portion is the reverse of the threading of the threaded portion of the fuze assembly of the grenade being simulated; and a tubular interior containing a two part fuze charge, said two part fuze charge comprising a delay charge, which is ignited by a striker and is located at an upper portion of said tubular interior, and an output charge, which is located in a lower portion of said tubular interior and is ignited by said delay charge; wherein the two part fuze charge is a multiple in size of the fuze charge in the grenade being simulated; and wherein, when the output charge detonates, the shock waves and explosive gasses resulting therefrom discharges out through the plural vents of the housing.