IP Library › Granted Patent US 10,976,143
Granted Patent B2
US 10,976,143 · App. 16/644,618 · Granted Apr 13, 2021

Full jacket safety projectile, particularly for multipurpose applications

Inventor: Michael Muster (Thun, CH)
Assignee: RUAG Ammotec AG
F42B12/74F42B12/06F42B12/78
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Quick Facts
Patent No.
US 10,976,143
App. No.
16/644,618
Granted
Apr 13, 2021
Kind
B2
Abstract

For the transport and handling of ammunition, the safety level is determined according to the amount of explosive used. Thereby, regulatory constraints are set for example for air transports, which barely suffice for a trial of projectiles. By a specific guidance of shockwaves resulting on impact on a target multilateral, high compressions are evolving inside the acting body ( 5 ′), which are initiating the same reliably without additional means or support agents. The subject of the invention aims at great savings of explosive without losses in the effect and significantly increases the safety during transport and handling.

Claims (17)

1. Full jacket safety projectile with a central penetration core centered in the full jacket with a front-sided, blind hole-like recess being filled with an explosive agent, wherein the penetration core having at least one first and one second wedge-shaped constriction, wherein on impact on a target the resulting central shockwave acting front-sided on the explosive agent and the recess in the penetration core splinters inside the target, wherein at circumferential notches and/or wedge-shaped constrictions shockwaves (S 1 , S 2 ) are reflected at the full jacket and/or in the penetration core and that the same are impinging the explosive agent, by opposingly directed shockwaves (S 1 , S 3 ; S 2 ′), so that compressions counteracting to each other are evolving, which are directly initiating the explosive agent.

2. Full jacket safety projectile according to claim 1 , wherein a part of the outer lying shockwaves (S 1 ) being guided from circumferential notches of the full jacket to the recess.

3. Full jacket safety projectile according to claim 1 , wherein a part of the outer lying shockwaves (S 1 ) being reflected on a front-sided face of the second constriction of the penetration core and being guided to a rear-sided tip of the recess.

4. Full jacket safety projectile according to claim 1 , wherein a front-sided face of the first and/or second constriction being an upper wedge face, which is particularly formed flatly or convexly.

5. Full jacket safety projectile according to claim 1 , wherein a front-sided face of the second constriction being aligned orthogonally to the presumptive, reflected shockwave (S 2 ′).

6. Full jacket safety projectile according to claim 1 , wherein the recess forming a rear-sided cone face with a tip, wherein the resulting cone angle is 90° to 130°, preferably 120°.

7. Full jacket safety projectile according to claim 1 , wherein the first wedge-shaped constriction being formed in such a way that they let the main amplitudes of the reflected shockwave (S 2 ′) to pass through and that they are optimal predetermined breaking points (Z).

8. Full jacket safety projectile according to claim 1 , wherein the steel tip being hardened and containing a central titanium pin.

9. Full jacket safety projectile according to claim 1 , wherein the penetration core providing a blind hole-like recess at the rear side, in which a metallic sleeve is introduced, which contains a marking charge.

10. Full jacket safety projectile according to claim 1 , wherein the elastic sleeve comprises a pyrotechnical mixture, wherein a polymer matrix, preferably polyether ketone, contains embedded metal powder, like titanium, magnesium, aluminum or zirconium and/or mixtures of the same.

11. Full jacket safety projectile according to claim 1 , wherein the penetration core and a front part forming the front-sided, blind hole-like recess being made in one piece, particularly metal piece, wherein particularly the one-pieced penetration core is formed of steel preferably without a magnesium cobalt additive.

12. Full jacket safety projectile according to claim 1 , wherein a rear-sided front face of the penetration core being formed evenly or convexly, particularly in that shockwaves (S 2 ) are focused towards the recess.

13. Use of a full jacket safety projectile according to claim 1 for the specific arrest of getaway vehicles.

14. Use of a full jacket safety projectile according to claim 1 as multipurpose projectile against lightly armored objects.

15. Use of a full jacket safety projectile according to claim 1 in the manufacturing or repair technology and in rescue services, for forming drill holes without tool machines.

16. Use of a full jacket safety projectile according to claim 1 in mining, in civil engineering for the preparation of blast holes, outlet bores, injections and pressure releases.

17. Use of a full jacket safety projectile according to claim 1 for the stepwise drift of bore holes during the exploration of raw materials.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 8, 2020
From: MUSTER, MICHAEL
To: RUAG AMMOTEC AG
Reel/Frame 052868/0608 →
Priority Claims (1)
WO PCT/IB2017/055447 · Sep 9, 2017 · international
Continuity (1)
Related Publication 20210063130A1 · Mar 4, 2021