Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Sub-caliber projectile for low impulse cartridges










Image Number 12 for United States Patent #6324983.

A sub-caliber projectile cartridge for automatic weapons includes a case, a piston, a forward cavity/an inner bore in the piston, a sub-caliber projectile, and a link. The sub-caliber projectile is seated into the forward cavity/inner bore located in the forward portion of the piston. Gas passages permit propellant gases to bleed into the cavity behind the sub-caliber projectile and to accelerate the sub-caliber projectile upon firing. The case and piston are assembled and telescopically secured by means of a crimp or another similar feature, to allow relative movement therebetween during chambering and firing. The link may be allowed to move for some portion of the required relative travel between the link and the base of the case. A shoulder on the piston provides a stop through which reaction loads are transmitted to the rear of the barrel during chambering and firing. The piston telescopes over the case during chambering to provide the relative movement between the link and the case base required for weapon function. Upon firing, the expanding propellant gases force the case and piston to telescope open. Propellant gases are also used to expel the sub-caliber projectile. Reaction loads are applied to the rear of the barrel through the shoulder, and at the same time are applied to the bolt, driving it rearward to cycle the weapon. The cartridge can be used in automatic weapon systems including but not limited to the 40mm MK19 Grenade Machinegun.








 
 
  Recently Added Patents
Clock phase recovery apparatus
(4944
Method of operating an election ballot printing system
Delivery of captions, content advisory and other data through digital interface
Method for driving electrophoretic display device, electrophoretic display device, and electronic device
Limit switch
High performance design rule checking technique
  Randomly Featured Patents
Multistage latch-based isolation cell
Electrical junction box for a vehicle
Phase shift key burst receiver having improved phase resolution and timing and data recovery
Air conditioner
Color printer
Voltage imaging system using electro-optics
Switches and joysticks using a non-electrical deformable pressure sensor
Dicyclohexadiene tetraacyl compounds
Manufactured articles, including fabrics comprising thermally bonded polyolefinic fibers
Catalytic method to produce hydroxy substituted arylophenones