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1. WO2019221775 - PROJECTILE ACCELERATOR WITH HEATABLE BARREL

Publication Number WO/2019/221775
Publication Date 21.11.2019
International Application No. PCT/US2018/057020
International Filing Date 23.10.2018
IPC
F41A 13/02 2006.1
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
41WEAPONS
AFUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
13Cooling or heating systems; Blowing-through of gun barrels; Ventilating systems
02Heating systems
F41A 21/20 2006.1
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
41WEAPONS
AFUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
21Barrels or gun tubes; Muzzle attachments; Barrel mounting means
20Barrels or gun tubes characterised by the material
F41B 11/64 2013.1
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
41WEAPONS
BWEAPONS FOR PROJECTING MISSILES WITHOUT USE OF EXPLOSIVE OR COMBUSTIBLE PROPELLANT CHARGE; WEAPONS NOT OTHERWISE PROVIDED FOR
11Compressed-gas guns, e.g. air guns; Steam guns
60characterised by the supply of compressed gas
64having a piston effecting a compressor stroke during the firing of each shot
CPC
F41A 13/02
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
41WEAPONS
AFUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
13Cooling or heating systems; Blowing-through of gun barrels; Ventilating systems
02Heating systems
F41A 21/20
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
41WEAPONS
AFUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
21Barrels; Gun tubes; Muzzle attachments; Barrel mounting means
20Barrels or gun tubes characterised by the material
F41B 11/64
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
41WEAPONS
BWEAPONS FOR PROJECTING MISSILES WITHOUT USE OF EXPLOSIVE OR COMBUSTIBLE PROPELLANT CHARGE; WEAPONS NOT OTHERWISE PROVIDED FOR
11Compressed-gas guns, e.g. air guns; Steam guns
60characterised by the supply of compressed gas
64having a piston effecting a compressor stroke during the firing of each shot
F41B 11/68
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
41WEAPONS
BWEAPONS FOR PROJECTING MISSILES WITHOUT USE OF EXPLOSIVE OR COMBUSTIBLE PROPELLANT CHARGE; WEAPONS NOT OTHERWISE PROVIDED FOR
11Compressed-gas guns, e.g. air guns; Steam guns
60characterised by the supply of compressed gas
68the gas being pre-compressed before firing
F41B 11/723
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
41WEAPONS
BWEAPONS FOR PROJECTING MISSILES WITHOUT USE OF EXPLOSIVE OR COMBUSTIBLE PROPELLANT CHARGE; WEAPONS NOT OTHERWISE PROVIDED FOR
11Compressed-gas guns, e.g. air guns; Steam guns
70Details not provided for in F41B11/50 or F41B11/60
72Valves; Arrangement of valves
723for controlling gas pressure for firing the projectile only
Applicants
  • SCIENCE APPLICATIONS INTERNATIONAL CORPORATION [US]/[US]
Inventors
  • WARREN, Gary
Agents
  • PORTER, H. Wayne
Priority Data
62/576,31624.10.2017US
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) PROJECTILE ACCELERATOR WITH HEATABLE BARREL
(FR) ACCÉLÉRATEUR DE PROJECTILE À CYLINDRE POUVANT ÊTRE CHAUFFÉ
Abstract
(EN) Systems, methods, and apparatuses are described for accelerating projectiles at high velocity. A barrel may include one or more heaters configured to heat a bore of the barrel prior to launch of a projectile. The barrel bore may be formed in a tungsten sleeve and may be heated to high temperatures. Heat from the barrel bore may be transferred to expanding propellant behind a projectile as it travels through the barrel bore.
(FR) L'invention concerne des systèmes, des procédés et des appareils destinés à accélérer des projectiles à grande vitesse. Un cylindre peut comprendre un ou plusieurs éléments chauffants conçus pour chauffer un alésage du cylindre avant le lancement d'un projectile. L'alésage de cylindre peut être formé dans un manchon en tungstène et peut être chauffé à des températures élevées. La chaleur provenant de l'alésage de cylindre peut être transférée pour dilater le propulseur derrière un projectile au fur et à mesure qu'il se déplace à travers l'alésage de cylindre.
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