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
Electronic badge
Method and apparatus for communications
Pressure roller and fixing device equipped with the same
Shoe
5-lipoxygenase-activating protein (FLAP) inhibitors
Rate controlled first in first out (FIFO) queues for clock domain crossing
Fabricated leaf tea products
  Randomly Featured Patents
Ultrasonic diagnostic apparatus
Methods and compositions for the specific inhibition of gene expression by double-stranded RNA
Liquid crystal display including heating element between bottom cover and backlight unit
Small form factor air jet cooling system
Block copolymer containing a methacrylate ester block
Methods for assembling an electrochemical cell
Disposable plastic trap bag
Method of and device for centrifugally purifying used mineral oils
Purines and pyrimidines linked to a quencher
Modular head covering system