Alliant Techsystems Inc.

Vista Outdoor Operations LLC

Federal Cartridge Company

Joel Lee Sandstrom

Jack A Erickson

Reed J Blau

Lisa Spendlove Liu

Gene Johnston

Neal Norris

Patrick Braun

Bryan P Peterson

Jared C Kutney

Randall T Busky

Tod R Botcher

Rachel Hendrika Newell

Aaron A Quinn

Lawrence Peter Head

Drew Lee Goodlin

Rochelle Diane Poore

Reed Blau

John M Melberg

Richard Dean Hurt

Patrick Blau

Richard Dean Hunt

A cartridge that generates higher than typical chamber pressures has an enhanced means of primer retention for retaining the primer in the primer recess of the casing. The means may be a lip folded onto a conical surface, a annular groove to receive deformed primer wall portion material upon detonation, a concavity in the rearward facing wall of the primer, a check valve in the flash tube to inhibit propellant gases from reaching the primer recess, or specifically configured primers with a greater length than diameter and with greater wall thicknesses.

High pressure rifle cartridge with primer

A primer composition that includes red phosphorus having an acid scavenger and a polymer thereon. The primer composition includes at least one other component that is substantially free of lead. The other component is at least one oxidizer, or at least one oxidizer and at least one of at least one secondary explosive composition and at least one energetic binder. The primer composition optionally includes at least one element having an ionic charge to ionic radius ratio of 4 or of 8, such as magnesium, zirconium, aluminum, silicon, titanium, tungsten, alloys thereof, and combinations thereof. The red phosphorus and the at least one oxidizer are present in the primer composition at approximately stoichiometric amounts. An ordnance element including the primer composition is also disclosed.

Nontoxic, noncorrosive phosphorus-based primer compositions and an ordnance element including the same

A primer composition that includes stabilized, encapsulated red phosphorus, at least one oxidizer, at least one secondary explosive composition, at least one light metal, and at least one acid resistant binder. The stabilized, encapsulated red phosphorus may include particles of red phosphorus, a metal oxide coating, and a polymer layer. The metal oxide coating may be a coating of aluminum hydroxide, bismuth hydroxide, cadmium hydroxide, cerium hydroxide, chromium hydroxide, germanium hydroxide, magnesium hydroxide, manganese hydroxide, niobium hydroxide, silicon hydroxide, tin hydroxide, titanium hydroxide, zinc hydroxide, zirconium hydroxide, or mixtures thereof. The polymer layer may be a layer of epoxy resin, melamine resin, phenol formaldehyde resin, polyurethane resin, or mixtures thereof. A percussion cap primer that includes the primer composition, a tertiary explosive composition, and a cup is also disclosed, as are ordnance devices including the primer composition.

Percussion primers comprising a primer composition and ordnance including the same

A non-toxic, non-hydroscopic percussion primer composition and methods of preparing the same, including at least one explosive component that has been traditionally considered a moderately insensitive explosive or secondary explosive, and at least fuel particle component having a particle size of about 1.5 microns to about 12 microns, which allows the use of moderately active metal oxidizers. The sensitivity of the primer composition is created by the interaction between the moderately insensitive explosive and the fuel agent such that traditional primary explosives such as lead styphnate or DDNP are not needed. The primer composition also eliminates the risks and dangers associated with traditional nano-sized fuel particles.

Non-toxic, heavy-metal free explosive percussion primers and methods of preparing the same

A percussion primer composition including at least one explosive, at least fuel particle having a particle size of about 1500 nm or less, at least one oxidizer, optionally at least one sensitizer, optionally at least one buffer, and to methods of preparing the same.

Non-toxic percussion primers and methods of preparing the same

A percussion primer composition including at least one explosive, at least one nano-coated fuel particle having natural surface oxides thereon, at least one oxidizer, optionally at least one sensitizer, optionally at least one buffer, and to methods of preparing the same.

Non-toxic, heavy-metal free sensitized explosive percussion primers and methods of preparing the same

A percussion primer composition including at least one explosive, at least one nano-size non-coated fuel particle having natural surface oxides thereon, at least one oxidizer, optionally at least one sensitizer, optionally at least one buffer, and to methods of preparing the same.

Nontoxic, noncorrosive phosphorus-based primer compositions

A lead-free, heavy-metal free rim-fire priming composition consisting essentially of diazodinitrophenol (DDNP) as a primary explosive, a low percentage of a secondary sensitization explosive (tetracene), with a high percentage of abrasive (ground glass) and a very low percentage of an effective lead-free, heavy-metal-free oxidizer. A strong binder is added to aid in the installation and retention of the composition within the rim of the casings. A dye is also included for the sole purpose of facilitating visual inspection within the casing after installation of the composition within the rim. The high percentage by weight of the ground glass (46-60%) in combination with DDNP is of principal importance. The preferred mix is comprised of 29.8% of DDNP, 4.0 tetracene, 57.0% ground glass, and 7.5% potassium nitrate with 1.5% gum tragacanth added as a binder and 0.2% Prussian Blue as a dye.

Lead-free, heavy-metal-free rim-fire priming composition dedicated for

Growing community of inventors

Corcoran, MN, United States of America

Joel Lee Sandstrom