DE20002365U1 - Gun barrel with a new barrel inner profile - Google Patents

Description

WILHELM SPINDLER, KAPUZBVERSTR. 2, 94474 VILSHOFEN Registration of protection claims for the application for registration of a used model from

08.02.2000.

DESCRIPTION

GUN BARREL with new barrel inner profile for use with all types of weapons

This gun barrel is used for all types of weapons through which projectiles are fired by means of hot,
cold or compressed liquid gases.

Gun barrel inner profiles of the usual design generally have one of the following inner profiles: Either the so-called polygonal barrel or the polygonal profile, which is characterized by having a polygonal inner profile, with all corners rounded. This profile does not have a sharp groove/field profile.

Or the classic groove/field profile, which is characterized by the fact that sharp-edged grooves are incorporated into a smooth, round barrel, in comparison to the polygonal barrel mentioned above.

The invention specified in claim 1 is based on the problem

that the polygon profile deforms the bullet too much and thus reduces the precision

is impaired

and in the case of the rifling/field profile, the non-leading side is not needed to guide the projectile and allows a lot of gas to pass through. The excessive gas-passage turbulence on the

Muzzle also has a negative effect on precision.

The gas outlet also has a negative effect on the range and trajectory of the projectile.

WILHELM SPENDLER, KAPUZINERSTR. 2, 94474 VILSHOFEN Registration of protection claims for the application for registration of a used model from

08.02.2000.

These problems are solved with the features listed in the protection claim that the new gun barrel inner profile has a new inner profile or a different construction of the usual grooves and fields: The new barrel inner profile is a combination of both existing profiles (polygon and groove/field profile), whereby with the right-hand twist the leading edge in the direction of fire is sharp-edged on the right and the opposite side - i.e. the left side/edge - changes into a polygon profile and thus no longer has any sharp edges.

The advantage of this is, or is achieved with the invention, that only one sharp edge is needed to give the projectile spin, namely the right edge in the case of right-hand spin, and the left edge therefore seals better against gas passage.

This also means that less gas turbulence occurs at the muzzle as the bullet leaves the barrel and thus has less of a negative influence on the bullet, which can be expected to result in greater precision.

Furthermore, the initial speed of the projectile increases and thus also the maximum firing range.

The gas pressures now available will also enable greater range and greater precision to be achieved.

The barrel has more gas density without distorting the bullet too much.

It is expected that the service life of the barrel will also be increased by this inner barrel profile.

The new gun barrel inner profile is incorporated into a gun barrel.

An embodiment is explained using the two attached drawings or sketches.

These show:

Sketch 1: New weapon inner barrel profile according to protection claim Sketch 2: Common currently used groove/field profile

Sketch 3: common polygon profile currently used

Claims (2)

1. GUN BARREL for use in weapons of all kinds through which projectiles are propelled by the hot gases produced during powder combustion or in another way, in particular by the use of compressed gases, in particular CO2 - gases that are kept in liquefied form. In common parlance, a gun barrel is understood to be a pierced tube with grooves that gives the projectiles a direction of movement. - This barrel is characterized by the fact that it has a new inner barrel profile or a different construction of the usual grooves and fields. The new inner barrel profile is a combination of existing profiles (polygon and groove/field profile), whereby with the right-hand twist the leading edge in the firing direction is sharp on the right and the opposite side - i.e. the left side/edge - changes into a polygon profile and thus no longer has any sharp edges. 2. GUN BARREL according to protection claim 1 - This barrel is characterized by the fact that it has a new inner barrel profile or a different construction of the usual grooves and fields. The new inner barrel profile is a combination of existing profiles (polygon and groove/field profile), whereby with the left-hand twist the leading edge in the direction of fire is sharp-edged on the left and the opposite side - i.e. the right side/edge - changes into a polygon profile and thus no longer has any sharp edges.