Resources Contact Us Home
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
Processing color and panchromatic pixels
Fixing apparatus
Signal processing apparatus and methods
Basket for a dishwasher
Liquid dispensing apparatus
Catalyst composition with nanometer crystallites for slurry hydrocracking
Using rule induction to identify emerging trends in unstructured text streams
  Randomly Featured Patents
Semiconductor module with vertically mounted semiconductor chip packages
Chlor-alkali diaphragm electrolysis process and relevant cell
Chiral fiber sensor apparatus and method
Method for treating a tumor with a chemotherapeutic agent
Fuel pump
Field effect transistor
Method of improving grass quality
Display rack
Method and tools for oral hygiene
Epoxy-functional hybrid copolymers