Byrna Technologies Inc.

Security Devices International (sdi)

André Johann Buys

A puncture mechanism that is configured to puncture a seal provided over a mouth of a canister of compressed gas received within a less-lethal device to propel a projectile from the less-lethal device when a trigger mechanism of the less-lethal device is actuated by a user. The puncture mechanism includes a displaceable body that has a piercing mechanism which is configured to pierce the seal provided over a mouth of the canister. The puncture mechanism further includes an actuation arrangement, which comprises a trigger mechanism, for displacing the displaceable body towards the canister whereby the piercing mechanism pierces a seal of the canister and compressed gas flows into a barrel of the less-lethal device to propel the projectile from the less-lethal device.

Pneumatic arrangement of a less-lethal device

The invention relates to a dart () comprising a body, the body defining a chamber () having a plunger located therein to operatively deliver a substance through a hypodermic needle () extending through a front end of the body, and a retainer comprising a barb body locatable on the hypodermic needle () characterised in that the barb body is threaded. The invention further relates to a dart retainer, wherein the retainer comprises of a threaded barb body locatable on a hypodermic needle () of a dart ().

Growing community of inventors

Pretoria, South Africa

André Johann Buys