Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Firearm cartridge and case-less chamber










Image Number 15 for United States Patent #7086336.

A firearm cartridge has a case configured with a relatively straight-walled portion and a shoulder portion for housing a quantity of propellant. The case further includes a neck for retaining a bullet. The straight-walled portion defines a base cavity having an interior base diameter. The interior base diameter is approximately twice or more the neck diameter. The diameter ratios of the base and neck optimize combustion efficiency to reduce heat and acceleration losses. The cartridge body cavity is sized and configured to contain a sufficient quantity of propellant such that igniting the propellant causes formation of a propellant plug having a diameter that is approximately the diameter of the bullet, and wherein the propellant plug shears free from unburned propellant that is disposed adjacent the relatively straight-walled body portion.








 
 
  Recently Added Patents
Self-service administration of a database
Medical imaging probe with rotary encoder
Stepped delay control of integrated switches
Eyeglasses
Method of forming wafer level mold using glass fiber and wafer structure formed by the same
Soybean cultivar BY0811143
Sacrificial spacer approach for differential source/drain implantation spacers in transistors comprising a high-k metal gate electrode structure
  Randomly Featured Patents
Method of manufacturing stamper
Cassette
Barge-carrying waterborne vessel and transportation method
Purification of crude acrylic acid by crystallization
Media cartridge having reel suspension system and method of manufacture
Alumina isomerization process
Bias circuit for series connected decoupling capacitors
Collecting vessel
Toilet seat raising apparatus
Optimal bandwidth and power utilization for ad hoc networks of wireless smart sensors