IP Library Granted Patent US 10,415,939
Granted Patent B2
US 10,415,939 · App. 15/126,018 · Granted Sep 17, 2019

Projectile

Inventors: Peter Pichler (Seibersdorf, AT); Christian Müller (Markt Piesting, AT); Martin Emsenhuber (Gobelsburg, AT); Bernhard Mayer (Schleinbach, AT)
Assignee: Hirtenberger Defence Europe GmbH
F42B12/28F42B12/22
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Quick Facts
Patent No.
US 10,415,939
App. No.
15/126,018
Granted
Sep 17, 2019
Kind
B2
Abstract

The invention relates to a projectile ( 1 ), which has a projectile body ( 2 ) featuring a recess ( 5 ) for receiving an explosive, wherein the projectile body ( 2 ) has a rotation-symmetrical shell surface ( 7 ), at least in sections, which is surrounded, at least in sections, by several ring-shaped elements ( 8 ) provided with predetermined break points, wherein fragments ( 12 ) formed upon breakup of the elements ( 8 ) are predefined via the predetermined break points, said fragments ( 12 ) being connected to one another in a ring-shaped connecting portion ( 11 ) for forming the ring-shaped element ( 8 ), and the freely projecting ends ( 13 ) of the fragments ( 12 ) being at least partially arranged in a common orthogonal plane ( 13 ′) to a longitudinal axis ( 8 ′) of the ring-shaped element ( 8 ), wherein this orthogonal plane ( 13 ′) is arranged diverging from an orthogonal plane ( 11 ′) defined by the ring-shaped connecting portion ( 11 ), as well as to a corresponding ring-shaped element ( 8 ) for the projectile ( 1 ).

Claims (18)

1. A projectile, which has a projectile body featuring a recess for receiving an explosive,

wherein the projectile body has a cylindrical shell surface, at least in sections, which is surrounded, at least in sections, by several ring-shaped elements provided with predetermined break points, wherein fragments formed upon breakup of the elements are predefined via the predetermined break points, said fragments being connected to one another in a ring-shaped connecting portion for forming the ring-shaped element, characterised in that freely projecting ends of the fragments are at least partially arranged in a common orthogonal plane to a longitudinal axis of the ring-shaped element,

wherein this orthogonal plane is arranged diverging from an orthogonal plane defined by the ring-shaped connecting portion,

wherein a positioning ring is arranged between a first subset and a second subset of the ring-shaped elements and wherein the positioning ring has an upper and a lower contact surface extending inclined with respect to an orthogonal plane of the longitudinal axis of the cylindrical shell surface, with the positioning ring designed as a mirror image about a central orthogonal plane of the longitudinal axis of the cylindrical shell surface,

and

the ring-shaped elements are divided into two groups, wherein the fragments of the ring-shaped elements are each bent in a direction away from the orthogonal plane defined by the ring-shaped connecting portion and the ring-shaped elements of the two groups are disposed on the cylindrical shell surface in a different spatial orientation.

2. The projectile according to claim 1 , characterised in that an upper and a lower surface of at least a number of fragments are formed substantially smooth and parallel to one another, wherein the two surfaces include an angle (α) other than 90° with respect to the orthogonal plane, defined by the ring-shaped connecting portion, to the longitudinal axis.

3. The projectile according to claim 2 , characterised in that all fragments include substantially a same angle (α) of inclination with respect to the orthogonal plane, defined by the ring-shaped connecting portion, to the longitudinal axis.

4. The projectile according to claim 2 , characterised in that a subset of the fragments include a first angle (α) other than 90° with respect to the orthogonal plane defined by the ring-shaped connecting portion, and another subset include a second angle (α′), also other than 90° with respect to the orthogonal plane defined by the ring-shaped connecting portion, wherein the second angle (α′) is mirrored to the first angle (α) about a plane extending through a ring-shaped connecting portion.

5. The projectile according to claim 2 , characterised in that the upper and the lower surface of the fragments include an angle (α) between 5° and 70° with respect to a plane defined by the ring-shaped connecting portion.

6. The projectile according to claim 1 , characterised in that each of the ring-shaped elements has a plurality of grooves representing predetermined break points.

7. The projectile according to claim 6 , characterised in that longitudinal extension axes of each groove are substantially in the radial direction of the ring-shaped element.

8. The projectile according to claim 6 , characterised in that the grooves have a substantially rectangular cross-section.

9. The projectile according to claim 6 , characterised in that the grooves have a ground in the shape of a circular arc.

10. The projectile according to claim 6 , characterised in that the grooves have a ground in the shape of an acute angle.

11. The projectile according to claim 7 , characterised in that the grooves extend outwardly from an inner surface of the ring-shaped elements defined by an inner radius.

12. The projectile according to claim 1 , characterised in that the ring-shaped connecting portion has a substantially full-faced outer shell surface.

13. The projectile according to claim 12 , characterised in that the outer shell surface of the ring-shaped connecting portion has an angle other than 90° towards both an upper and a lower surface of the ring-shaped connecting portion, wherein the outer shell surface extends substantially parallel to the cylindrical shell surface of the projectile body.

Assignments (2)
CHANGE OF NAME Recorded Nov 7, 2018
From: HIRTENBERGER DEFENCE SYSTEMS GMBH & CO KG
To: HIRTENBERGER DEFENCE EUROPE GMBH
Reel/Frame 047429/0779 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 7, 2017
From: PICHLER, PETER; MÜLLER, CHRISTIAN; EMSENHUBER, MARTIN; MAYER, BERNHARD
To: HIRTENBERGER DEFENCE SYSTEMS GMBH & CO KG
Reel/Frame 043214/0174 →
Priority Claims (1)
AT A 50190/2014 · Mar 14, 2014 · national
Continuity (2)
Related Publication 20180202783A1 · Jul 19, 2018
Related Publication 20190041176A9 · Feb 7, 2019