Short range tubular projectile
CA 1266796 C · Owner: Laviolette, Maurice · Inventors: Evans, John R.; Cheers, Brian; Laviolette, Maurice
Overview
Its claims, description and drawings are in the Canadian Patents Database.
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Abstract From the Canadian patent
A spinning tubular projectile (STUP) is subcalibre to reduce retardation. It is fired with low spin to reduce the gyroscopic stability. The total effect is to reduce crosswind sensitivity and to obtain a better ballistic match with a simulated armour piercing for stabilized, discarding sabot (APFSDS) round. To reduce the range to that desired for a limited range practice round, the STUP is equipped with spin-damping fins on its surface near the projectile centre of gravity.
Read the whole patent
Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents.
Why it's free to use
- Granted March 20, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 20, 2007.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.