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
Method and system for securing online identities
Vehicle cowl cover
Viable tissue repair implants and methods of use
Mechanism for an efficient DLL training protocol during a frequency change
Apparatus for walking and resting upon the water
Livestock management systems and methods
Method for preparing ginkgo extracts having a low content of 4'-O-methyl pyridoxine and/or biflavones
  Randomly Featured Patents
Device for lake restoration by oxygen-enriching of the water
Process for the production of olefins from light paraffins
Optical transceiver and optical connector
Flow meter
N-Amino alkyl indole compounds compositions containing same, and a method of using same in therapy of disorders of gastrointestinal motility
Adapter for intermediary circuit of a static converter assembly
Optical fiber amplifier with gain equalizing circuit
Optoelectric mounting and interconnect apparatus
Detachable developing unit in an image forming apparatus