Tungsten penetrators

Patent 5440995 Issued on August 15, 1995. Estimated Expiration Date:

April 5, 2013. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Abstract Claims Description Full Text

Patent References

H343

3826172

Hybrid shaped-charge/kinetic/energy penetrator
Patent #: 4463678
Issued on: 08/07/1984
Inventor: Weimer , et al.

Composite long rod penetrator
Patent #: 4841868
Issued on: 06/27/1989
Inventor: Jackson

Penetrator and method for the manufacture thereof
Patent #: 4867061
Issued on: 09/19/1989
Inventor: Stadler , et al.

Composite tungsten-steel armor penetrators Patent #: 4961383
Issued on: 10/09/1990
Inventor: Fishman, et al.

Inventor

Levitt, Albert P.

Assignee

The United States of America as represented by the Secretary of the Army

Application

No. 039603 filed on 04/05/1993

US Classes:

102/517, Composite102/519, With separate hardened nose428/911PENETRATION RESISTANT LAYER

Examiners

Primary: Mai, Ngoclan

Attorney, Agent or Firm

Krosnick; Freda L., Roberto; Muzio B.

International Class

F42B 012/00

Abstract

An improved tungsten penetrator employing tungsten whiskers of various crystalline orientations--specifically the [100] orientation. The penetrator has enhanced penetration ability and strength.

Other References

Bruchey et al., "The Effect of Crystallographic Orientation on the Perforce of Single Crystal Tungsten Sub-Scale Penetractors", Interim Reprt. No. 941, Ballistic Research Laboratory, (Apr. 1990)
Vennett et al., "Multiple Necking of Tunsten Fibers in a Brass--Tungsten Composite", Metallurgical Transactions, vol. 1, pp. 1569-1575 (Jun. 1970