STRUCTURING OF THE OGIVE SURFACE OF A PROJECTILE

• US 20140318405A1
• Filed: 08/07/2012
• Published: 10/30/2014
• Est. Priority Date: 08/08/2011
• Status: Active Grant

• Current Assignee: RUAG Ammotec GmbH (Government of Switzerland)
• Original Assignee: RUAG Ammotec GmbH (Government of Switzerland)
• Inventors: Mnius, Frank, Dikhoff, Hannes, Muss, Karlheinz, Papet, Vasile
• Granted Patent: US 9,488,453 B2
• Time in Patent Office: Days
• US Class Current: 102/501
• CPC Class Codes: F42B 10/38 Range-increasing arrangements F42B10/34, F42B14/06 and F42B15/105 take precedence
• CPC Class Codes: F42B 10/42 Streamlined projectiles
• CPC Class Codes: F42B 12/02 characterised by the warhead or the intended effect

Abstract

The invention relates to a projectile with a projectile tip (9) at the front as viewed in the direction of the shot, which transforms via an ogive (1) into a rear cylindrical area (7). To reduce the air resistance and optimize precision, it is proposed according to the invention that the surface of the ogive (1) be structured.

Claims

1. A projectile with a projectile tip at the front as seen in the direction of firing, developing into a rear cylindrical region by way of an ogive, characterized in that the surface of the ogive is structured.

2. The projectile according to claim 1, characterized in that the surface has recesses.

3. The projectile according to claim 2, characterized in that the recesses have a droplet shape.

4. The projectile according to claim 2, characterized in that the recesses are arranged on circles, which encompass the ogive and are arranged at a right angle to the longitudinal axis of the projectile.

5. The projectile according to claim 4, characterized in that the recesses are arranged so they abut against one another on the circles.

6. The projectile according to claim 4, characterized in that the recesses on one circle are arranged with an offset from the recesses on a neighboring circle, so that a recess on one circle is arranged between two recesses on a neighboring circle.

7. The projectile according to claim 6, characterized in that the recesses are one circle are arranged with an offset from the recesses on the neighboring circle amounting to half of the diameter of a recess.

8. The projectile according to claim 4, characterized in that four circles are arranged on the ogive.

9. The projectile according to claim 4, characterized in that peripheral grooves on the cylindrical region are arranged beneath the recesses in the direction away from the projectile tip and run parallel to the circles.

10. The projectile according to claim 1, characterized in that the surface of the projectile tip is designed to be smooth and a calming zone whose surface is smooth is arranged beneath the recesses in the direction away from the projectile tip up to the grooves.

11. A use of a projectile claim 1 for cartridges of the caliber 0.22 LR, in particular for rim-fire cartridges.