The use of a steel penetrator to penetrate armoring is already known for years in the use of military ammunition.
One of the oldest examples is described in the Swiss patent document CH 10770 of 5 July 1895 by the name of Hugo Borchardt. This principle forms the basis of nearly all armor piercing projectiles.
However by its primitive implementation several patent documents are already available which are a modern alternative on this principle.
The original Borchardt implementation had been intended for artillery ammunition and infantry cartridges. As result this implementation could not efficiently apply in handgun calibers.
In the course of the years several improvement patents were granted to several persons, however none of their techniques could be applied with sufficient efficiency in the restricted space of a handgun caliber cartridge.
To apply to the principle of a steel penetrator with the maximum efficiency in the restricted space of a handgun caliber cartridge there be invented a number of new techniques. These new techniques were summarized in a new patent at the name of Rik Van Bruaene.
This patent includes all technical properties of the penetrator and the accelerator (sabot). All technical properties of the composed projectile.
In the conclusions all possible changes in the dimensions, form and composition have been incorporated. The use of other material does not affect the patent.
This Belgian patent applies not only for the production but also for the distribution on the Belgian territory