Patents by Inventor André Johann Buys

André Johann Buys has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11680770
    Abstract: 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.
    Type: Grant
    Filed: October 24, 2019
    Date of Patent: June 20, 2023
    Assignee: Byrna Technologies, Inc.
    Inventor: André Johann Buys
  • Patent number: 11307008
    Abstract: The invention relates to a dart (10) comprising a body, the body defining a chamber (24) having a plunger located therein to operatively deliver a substance through a hypodermic needle (32) extending through a front end of the body, and a retainer comprising a barb body locatable on the hypodermic needle (32) 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 (32) of a dart (10).
    Type: Grant
    Filed: November 11, 2016
    Date of Patent: April 19, 2022
    Assignee: Byrna Technologies Inc.
    Inventor: André Johann Buys
  • Publication number: 20210381796
    Abstract: This invention relates to mechanisms and components of a less lethal device, including a magazine configured to house a plurality of projectiles in a “staggered” configuration, a barrel displacement mechanism, a projectile release mechanism and load indicator, a projectile detent, and a loading mechanism. The magazine comprises a hollow body with a first closed end and a second end with an opening through which projectiles are received into or from the body; a first follower which is displaceable from the first end in a direction of the second end for a first distance, the first follower being biased in the direction of the second end; and a second follower which is displaceable from the first end in the direction of the second end for a second distance, the second follower being biased in the direction of the second end and wherein the first distance exceeds the second distance.
    Type: Application
    Filed: October 24, 2019
    Publication date: December 9, 2021
    Inventor: André Johann BUYS
  • Publication number: 20210381797
    Abstract: This invention relates to a pneumatic arrangement of a less-lethal device, which pneumatic arrangement comprises a puncture mechanism used for puncturing a sealed mouth of a canister of compressed gas, in use received within a body of the less-lethal device; a pressure sensitive activation assembly used to inhibit the device from propelling a projectile therefrom before a predetermined pressure is reached within a release valve of the device; a release valve assembly for venting compressed gas to a barrel to propel the projectile from the device; and a propelling assembly for adjusting the kinetic force with which a hammer impacts a release valve of the device. The invention also relates to a method of propelling a projectile from a less-lethal device.
    Type: Application
    Filed: October 24, 2019
    Publication date: December 9, 2021
    Inventor: André Johann BUYS
  • Patent number: 11009321
    Abstract: This invention relates to less-lethal munitions. More particularly, the invention relates to a wad and a less-lethal round of ammunition adapted for use with a conventional firearm, which less-lethal shell enables the firearm to propel less-lethal projectiles therefrom. According to a first aspect of the invention there is provided a wad operatively received within an ammunition casing, the wad comprising a substantially disc-shaped base; and a plurality of tabs extending from the base defining a receiving zone therebetween, with at least some of the tabs provided with an inwardly projecting formation for urging against a projectile operatively received within the receiving zone.
    Type: Grant
    Filed: November 15, 2019
    Date of Patent: May 18, 2021
    Assignee: BYRNA TECHNOLOGIES INC.
    Inventor: Andre Johann Buys
  • Publication number: 20200158481
    Abstract: This invention relates to less-lethal munitions. More particularly, the invention relates to a wad and a less-lethal round of ammunition adapted for use with a conventional firearm, which less-lethal shell enables the firearm to propel less-lethal projectiles therefrom. According to a first aspect of the invention there is provided a wad operatively received within an ammunition casing, the wad comprising a substantially disc-shaped base; and a plurality of tabs extending from the base defining a receiving zone therebetween, with at least some of the tabs provided with an inwardly projecting formation for urging against a projectile operatively received within the receiving zone.
    Type: Application
    Filed: November 15, 2019
    Publication date: May 21, 2020
    Inventor: Andre Johann BUYS
  • Publication number: 20180328701
    Abstract: The invention relates to a dart (10) comprising a body, the body defining a chamber (24) having a plunger located therein to operatively deliver a substance through a hypodermic needle (32) extending through a front end of the body, and a retainer comprising a barb body locatable on the hypodermic needle (32) 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 (32) of a dart (10).
    Type: Application
    Filed: November 11, 2016
    Publication date: November 15, 2018
    Inventor: André Johann Buys
  • Patent number: 9746297
    Abstract: This invention relates to a non-lethal projectile to be fired using a paintball gun, and more particularly, but not exclusively, to an aerodynamic non-lethal projectile which is used for marking, inhibiting or administering medicinal or other chemical substances to live targets. According to a first aspect of the invention, there is provided a projectile comprising a body shaped to receive a capsule containing a substance, the body having a stabilizing member connected thereto for stabilizing the projectile in flight when the projectile is discharged from a weapon, and an annular member connected to the stabilising member at a rear end of the projectile for positioning the projectile relative to the weapon and relative to other projectiles to be discharged by the weapon.
    Type: Grant
    Filed: November 25, 2014
    Date of Patent: August 29, 2017
    Inventor: Andre Johann Buys
  • Publication number: 20150144018
    Abstract: This invention relates to a non-lethal projectile to be fired using a paintball gun, and more particularly, but not exclusively, to an aerodynamic non-lethal projectile which is used for marking, inhibiting or administering medicinal or other chemical substances to live targets. According to a first aspect of the invention, there is provided a projectile comprising a body shaped to receive a capsule containing a substance, the body having a stabilising member connected thereto for stabilising the projectile in flight when the projectile is discharged from a weapon, and an annular member connected to the stabilising member at a rear end of the projectile for positioning the projectile relative to the weapon and relative to other projectiles to be discharged by the weapon.
    Type: Application
    Filed: November 25, 2014
    Publication date: May 28, 2015
    Inventor: Andre Johann BUYS
  • Patent number: D865117
    Type: Grant
    Filed: April 12, 2017
    Date of Patent: October 29, 2019
    Assignee: Security Devices International (SDI)
    Inventor: André Johann Buys
  • Patent number: D903812
    Type: Grant
    Filed: November 15, 2018
    Date of Patent: December 1, 2020
    Assignee: SECURITY DEVICES INTERNATIONAL INC.
    Inventor: Andre Johann Buys