Claims
- 1. A device to protect the deployable fins of an artillery projectile comprising:a form-fitting protective cap over said deployable fins made from a material of sufficient porosity such that said cap disintegrates and discards on projectile muzzle exit.
- 2. The device of claim 1 wherein said protective cap integrates with an obturator on said projectile to form a temporary pressure in-bore seal.
- 3. The device of claim 2 wherein said cap's discard and disintegration on projectile muzzle exit is aided by said material having medium porosity, which allows seepage of high-pressure gun gas into the cap material, wherein on projectile exit high-pressure gas tries to equilibrate and escape to the atmosphere and thus fragments and disintegrates said cap.
- 4. The device of claim 3 wherein said cap material has a thickness of 0.035″ to 0.060″.
- 5. The device of claim 3 wherein said material is flexible.
- 6. The device of claim 5 wherein said flexible material is a plastic.
RIGHTS OF THE GOVERNMENT
The invention described herein may be manufactured, used, and licensed by or for the United States Government for governmental purposes without the payment to us of any royalty thereon.
US Referenced Citations (6)