Sabot assembly

Patent metadata

Field	Value
Publication number	US-9488455-B1
Application number	US-201514602556-A
Country	US
Kind code	B1
Filing date	Jan 22, 2015
Priority date	Jan 22, 2015
Publication date	Nov 8, 2016
Grant date	Nov 8, 2016

Abstract

A sabot assembly includes a projectile and a housing dimensioned and configured for receiving the projectile. An air pressure cavity having a cavity diameter is disposed between a front end and a rear end of the housing. Air intake nozzles are in fluid communication with the air pressure cavity and each has a nozzle diameter less than the cavity diameter. In operation, air flows through the plurality of air intake nozzles and into the air pressure cavity upon firing of the projectile from a gun barrel to pressurize the air pressure cavity for assisting in separation of the housing from the projectile upon the sabot assembly exiting the gun barrel.

First claim

What is claimed is:

1. A sabot assembly comprising:
a housing dimensioned and configured for receiving a projectile, the housing including a scoop-less front end having an outer surface and a rear end;
an air pressure cavity disposed between the front end and the rear end of the housing and around a portion of the projectile, the air pressure cavity including a cavity diameter; and
a plurality of air intake nozzles in fluid communication with the air pressure cavity and each having a nozzle diameter less than the cavity diameter, the plurality of air intake nozzles extending from the outer surface of the front end of the housing to the air pressure cavity,
wherein air flows through the plurality of air intake nozzles and into the aft pressure cavity upon firing of the projectile through a gun barrel to pressurize the air pressure cavity and cause expansion of the housing against an internal surface of the gun barrel.

2. The sabot assembly of claim 1 wherein the housing is removeably secured to the projectile.

3. The sabot assembly of claim 2 wherein the housing is removeably secured to the projectile along a first connection area disposed between a front end of the air pressure cavity and the front end of the housing and along a second connection area disposed between a rear end of the air pressure cavity and the rear end of the housing.

4. The sabot assembly of claim 1 wherein the cavity diameter is substantially constant throughout the air pressure cavity.

5. The sabot assembly of claim 1 wherein the cavity diameter is tapered such that the air pressure cavity includes a greater diameter at a first end of the cavity adjacent the front end of the housing than at a second end of the cavity adjacent the rear end of the housing.

6. The sabot assembly of claim 1 wherein the housing includes one or more columnar supports traversing the air pressure cavity and dividing the air pressure cavity into a front cavity section and one or more rear cavity sections.

7. The sabot assembly of claim 6 wherein the volume of the front cavity section is greater than the volume of the one or more rear cavity sections.

8. The sabot assembly of claim 1 wherein the plurality of air intake nozzles are each disposed equidistantly apart from adjacent air intake nozzles.

9. The sabot assembly of claim 1 wherein the housing is divided into a plurality of independent housing sections such that each housing section is separated from both the projectile and the other housing sections upon the sabot assembly exiting the gun barrel.

10. A sabot assembly comprising: a projectile; a housing dimensioned and configured for receiving the projectile, the housing including a scoop-less front end having an outer surface and a rear end; an air pressure cavity disposed between the front end and the rear end of the housing and around a portion of the projectile, the air pressure cavity including a cavity diameter; and a plurality of air intake nozzles in fluid communication with the air pressure cavity and each having a nozzle diameter less than the cavity diameter, the plurality of air intake nozzles extending from the outer surface of the front end of the housing to the air pressure cavity, wherein air flows through the plurality of air intake nozzles and into the air pressure cavity upon firing of the projectile through a gun barrel to pressurize the air pressure cavity and cause expansion of the housing against an internal surface of the gun barrel.

11. The sabot assembly of claim 10 wherein the housing is removeably secured to the projectile.

12. The sabot assembly of claim 11 wherein the housing is removeably secured to the projectile along a first connection area disposed between a front end of the air pressure cavity and the front end of the housing and along a second connection area disposed between a rear end of the air pressure cavity and the rear end of the housing.

13. The sabot assembly of claim 10 wherein the cavity diameter is substantially constant throughout the air pressure cavity.

14. The sabot assembly of claim 10 wherein the cavity diameter is tapered such that the air pressure cavity includes a greater diameter at a first end of the cavity adjacent the front end of the housing than at a second end of the cavity adjacent the rear end of the housing.

15. The sabot assembly of claim 10 wherein the housing includes one or more columnar supports traversing the air pressure cavity and dividing the air pressure cavity into a front cavity section and one or more rear cavity sections.

16. The sabot assembly of claim 15 wherein the volume of the front cavity section is greater than the volume of the one or more rear cavity sections.

17. The sabot assembly of claim 10 wherein the plurality of air intake nozzles are each disposed equidistantly apart from adjacent air intake nozzles.

18. The sabot assembly of claim 10 wherein the housing is divided into a plurality of independent housing sections such that each housing section is separated from both the projectile and the other housing sections upon the sabot assembly exiting the gun barrel.

19. The sabot assembly of claim 10 wherein the air pressure cavity is disposed adjacent the rear end of the housing and substantially behind the projectile.

20. The sabot assembly of claim 10 wherein the plurality of air intake nozzles extend from the outer surface of the front end of the housing in parallel with the projectile to the air pressure cavity.

21. The sabot assembly of claim 1 wherein the plurality of air intake nozzles extend from the outer surface of the front end of the housing in parallel with the projectile to the air pressure cavity.

Assignees

• Cons Nuclear Security Llc

Inventors

• Bzorgi Fariborz

Classifications

• F42B14/062 Primary

  characterised by contact surfaces between projectile and sabot · CPC title

• F42B14/06

  Sub-calibre projectiles having sabots; Sabots therefor · CPC title