US Patent Issued to GENERAL DYNAMICS ORDNANCE AND TACTICAL SYSTEMS-CANADA on Nov. 4 for "Reduced energy marking cartridges providing a multi-phase firing cycle" (Canadian Inventors)

ALEXANDRIA, Va., Nov. 6 -- United States Patent no. 12,460,910, issued on Nov. 4, was assigned to GENERAL DYNAMICS ORDNANCE AND TACTICAL SYSTEMS-CANADA INC. (Repentigny, Canada).

"Reduced energy marking cartridges providing a multi-phase firing cycle" was invented by Yann Routhier (Terrebonne, Canada), Alison Daigle (Charlemagne, Canada), Nicholas Blanchard (Saint-Paul, Canada) and Sylvain Berthiaume (Repentigny, Canada).

According to the abstract* released by the U.S. Patent & Trademark Office: "A reduced energy marking cartridge includes a casing supporting a sabot for relative sliding movement and defining a combustion chamber at the breech end of the cartridge and a vent chamber at the muzzle end of the cartridge. An assembly of seals...