US Government As Represented by the Secretary of the Army

Jeffrey R Kraft

Ernest L Baker

Vladimir M Gold

Ryan Hooke

Oscar N Ruiz

Jack Pincay

James Hamfeldt

Gordon Cheung

Mitchell Stolk

Gerard Voorhis

Donna Snyder

Brett Barnes

Andrew Maulbeck

Gregory Nieradka

Tu-Nhi Nguyen

Frank Munoz

Eugene Schlenk

A mortar ammunition round which contains at least three fragment producing regions covered by a threadably removable aluminum cowling. Detachment of the cowling provides access to several of the fragment producing regions which are located on a removable cup device. A different cup device may then be selectively inserted and the cowling replaced, forming a new mortar round of different select performance capabilities.

81mm increased lethality projectile

A fragmentation warhead includes a cylindrical fragmenting body, a pair of concentric cylindrical liners within, made of plastic, and an explosive charge disposed within the innermost liner. In one embodiment, one liner provides various 'legs' of liner material and the other liner provides various open receptacle areas, into which such legs may come to rest when the liners are slid together and/or rotated relative to one another. Various recessed and/or raised areas of liner material can thus be randomly created by such adjustments, which lead to select fragmentation of the warhead upon detonation.

Multiple size fragment warhead

A fragmentation warhead includes a cylindrical body, a pair of concentric cylindrical liners made of plastic, and an explosive charge disposed within the innermost liner. The innermost liner includes patterns formed thereon of recessed areas and solid liner elements. The outermost liner's interior surface includes patterns formed thereon of raised areas and solid liner elements. The outermost cylindrical liner is arranged to be adjustable relative to the innermost liner through rotation or translation. The explosive charge is disposed adjacent to the interior of the innermost cylindrical liner. Upon detonation of the explosive charge and because of the random dampening and temporal delay in transmitting the detonation energy through various locations of the randomly aligned cylindrical liners, the warhead body is caused to shear and break into fragments with different sizes. It can be understood that adjustment of the outermost cylindrical liner can be used to influence the size of fragments ultimately generated when the warhead breaks apart through detonation.

Selectable size fragmentation warhead

Growing community of inventors

Newton, NJ, United States of America

Jeffrey R Kraft