Self sealing firearm projectile
OwnerDaniel J. Smitchkoinventor
Life of this patent
Estimating the term…
Abstract
A self sealing projectile having an adjustable sealing band about the projectile. The adjustable sealing band having the ability to deform and provide a seal between inside surfaces of the firearm and the projectile. The projectile includes a front receiving groove between the adjustable sealing band and the front end of the projectile, where the front receiving groove is in proximity to the adjustable sealing band to receive a portion of the adjustable sealing band during deformation of the adjustable sealing band. The projectile includes a rear receiving groove between the adjustable sealing band and the rear end of the projectile, where the rear receiving groove is in proximity to the adjustable sealing band to receive a portion of the adjustable sealing band during deformation of the adjustable sealing band.
Claims13
A self sealing projectile adapted for use with a cartridge in a firearm with a barrel, consisting of:
- a projectile having a front end and a rear end, said projectile having a designated caliber, said front end designated to travel first through the barrel, said rear end designated for mounting in the cartridge;
- an adjustable sealing band about said projectile between said front end and said rear end;
- said adjustable sealing band being sized greater than said designated caliber and thus configured to deform and provide a seal between inside surfaces of the firearm and said projectile;
- a front receiving groove between said adjustable sealing band and said front end of said projectile, said front receiving groove in proximity to said adjustable sealing band to receive a portion of said adjustable sealing band during deformation of said adjustable sealing band;
- and
- a rear receiving groove between said adjustable sealing band and said rear end of said projectile, said rear receiving groove in proximity to said adjustable sealing band to receive a portion of said adjustable sealing band during deformation of said adjustable sealing band;
- and
- wherein said projectile, said adjustable sealing band, said front receiving groove and said rear receiving groove are formed from one piece of solid material.
A method of sealing a solid bullet made from one piece of solid material against an inside surface of grooves and lands of a rifled barrel of a firearm during firing consisting of:
- providing a sealing band formed from the solid material on the bullet that is larger than the caliber diameter of the bullet and can deform to a shape of the grooves and lands, the sealing band being sized greater than the designated caliber and thus configured to deform and provide a seal between inside surfaces of the firearm and the bullet;
- providing a front receiving groove in front of the sealing band to receive excess material from the sealing band as the sealing band deforms to a shape of the grooves and lands;
- providing a rear receiving groove to a rear of the sealing band to receive excess material from the sealing band as the sealing band deforms to a shape of the grooves and lands;
- and
- firing the bullet in the firearm.
A method of making a self sealing projectile from a solid material, consisting of:
- turning a solid material into a bullet of a designated caliber;
- during turning allowing a sealing band in a range of 0.0002 to 0.006 larger than the designated caliber to remain between a front and rear of the bullet, the sealing band being sized greater than the designated caliber and thus configured to deform and provide a seal between inside surfaces of the firearm and the projectile;
- turning a front receiving groove in front of the sealing band;
- and
- turning a rear receiving groove to a rear of the sealing band.
Dependencies are inferred from the claim text.