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| Number | Title | Issue Date |
| 7213519 | Composite polymer based cartridge case having an overmolded metal cup, polymer plug base assembly A cup and plug assembly of a base for a polymer based ammunition cartridge case body includes a cylindrical sleeve joined to the base. The base includes a plug molded over a cup. The cup includes a first annular cup portion extending in a first direction from a web ... | 05/08/2007 |
| 7011028 | Rimfire cartridge for a firearm A firearm cartridge with a rimmed metal case having a body portion having a rim and a cylindrical wall portion adjacent to the rim. The body portion has dimensions corresponding to a 22 Long Rifle specification. The case has a tapered shoulder portion contiguous wit... | 03/14/2006 |
| 6672219 | Low observable ammunition casing A low observable, brass ammunition cartridge casing with an exterior surface having a colored coating which renders the cartridge casing low observable. The colored coating may be deposited onto the exterior surface by various processes, such as electropl... | 01/06/2004 |
| 5419258 | Steel propellant casing A steel propellant casing includes a substantially cylindrical casing body provided with a casing bottom at one end thereof and with a shoulder cone at an opposite end thereof. The shoulder cone terminates in a casing neck, and has an essentially uniform ... | 05/30/1995 |
| 5136952 | Air bag explosive container device and method An air bag explosive container device for use in inflating an air bag upon receipt of a sensor signal that indicates a collision. The container device includes a lower cylinder portion and an upper cap portion, threadedly connected together and enclosing ... | 08/11/1992 |
| 5130207 | Thin wall steel cartridge cases High strength, high precision thin-walled cartridge cases are manufactured from a metal of interest selected from low alloy and carbon steels utilizing an extrusion and heat treating process. The cartridge blanks are extruded to a length greater than that... | 07/14/1992 |
| 4535697 | Cartridge case and apparatus for producing the same When cartridges are introduced into a weapon there exists the danger that the conical shoulder of the cartridge case or sleeve will be deformed to an undesired degree. To avoid such disadvantage the wall of the conical shoulder is constructed to be thicke... | 08/20/1985 |
| 4041868 | Thin walled steel cartridge case A thin walled steel cartridge case having a substantially larger internal volume than a conventional cartridge case. The cartridge case is fabricated from a high strength, heat treated carbon steel or boron steel and the wall contour in the head area is d... | 08/16/1977 |
