Method For Providing Electrical Energy To A Self-Destruct Fuze For Submunitions Contained in a Projectile

Patent metadata

Field	Value
Publication number	US-2016377403-A1
Application number	US-201615152487-A
Country	US
Kind code	A1
Filing date	May 11, 2016
Priority date	Jun 10, 2008
Publication date	Dec 29, 2016
Grant date	—

Abstract

A method for providing electrical energy in a projectile upon an expulsion acceleration of the projectile. The method including: using a firing acceleration of the projectile to deform at least one elastic element to store mechanical energy in the elastic element; locking the elastic element in the deformed position; and unlocking the elastic element due to the expulsion acceleration to vibrate the at least one elastic element and apply a cyclic force to at least one piezoelectric element to convert the stored mechanical energy to electrical energy.

First claim

What is claimed is:

1 . A method for providing electrical energy in a projectile upon an expulsion acceleration of the projectile, the method comprising:
using a firing acceleration of the projectile to deform at least one elastic element to store mechanical energy in the elastic element; locking the elastic element in the deformed position; and unlocking the elastic element due to the expulsion acceleration to vibrate the at least one elastic element and apply a cyclic force to at least one piezoelectric element to convert the stored mechanical energy to electrical energy.

2 . The method of claim 1 , wherein the electric energy is conditioned prior to input into the self-destruct fuze electrical/electronic circuitry.

3 . The method of claim 2 , wherein the at least piezoelectric element produces substantially zero electrical energy prior to the firing acceleration and begins to generate the electrical energy after the projectile has been fired the submunitions have been expelled.

4 . The method of claim 1 , further comprising measuring the electrical energy and differentiating between the expulsion of the submunitions and another unintended event which produces electrical energy based on the measured electrical energy.

5 . The method of claim 1 , wherein the electrical energy is not provided to the self destruct fuze if the differentiating determines the electrical energy produced is the result of the unintended event.

6 . The method of claim 1 , further comprising providing the electrical energy at least indirectly to a self destruct fuze for detonation.

7 . A method for providing electrical energy in a projectile upon an acceleration of the projectile subsequent to a firing acceleration of the projectile, the method comprising:
using a firing acceleration of the projectile to deform at least one elastic element to store mechanical energy in the elastic element; locking the elastic element in the deformed position; unlocking the elastic element due to the acceleration to vibrate the at least one elastic element and apply a cyclic force to at least one piezoelectric element to convert the stored mechanical energy to electrical energy.

Assignees

• Rastegar Jahangir S
• Murray Richard T
• Janow Chris
• Dratler Richard
• Omnitek Partners Llc

Inventors

• Rastegar Jahangir S
• Murray Richard T
• Janow Chris
• Dratler Richard

Classifications

• F42C15/44

  Arrangements for disarming, or for rendering harmless, fuzes after arming, e.g. after launch · CPC title

• F42C11/02 Primary

  with piezo-crystal · CPC title

• F42C11/008

  Power generation in electric fuzes (F42C11/02, F42C11/04 and F42C15/295 take precedence) · CPC title

• F42C9/16

  for self-destruction of ammunition {(F42C9/141 - F42C9/148 take precedence)} · CPC title