JEFFREY R KRAFT
Engineering in Fredon, NJ
License number
Massachusetts 18606
Issued Date
Apr 24, 1999
Type
Engineer in Training
Address
Address
2
Fredon, NJ 07860
Fredon, NJ
Fredon, NJ
Professional information
Selectable Size Fragmentation Warhead
US Patent:
8272330, Sep 25, 2012
Filed:
Feb 22, 2010
Appl. No.:
12/709534
Inventors:
Vladimir M. Gold - Hillside NJ, US
Jeffrey R. Kraft - Newton NJ, US
Ernest L. Baker - Wantage NJ, US
Jeffrey R. Kraft - Newton NJ, US
Ernest L. Baker - Wantage NJ, US
Assignee:
The United States of America as Represented by the Secretary of the Army - Washington DC
International Classification:
F42B 12/22, F42B 12/28
US Classification:
102494, 102492, 102475
Abstract:
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.
Multiple Size Fragment Warhead
US Patent:
8522685, Sep 3, 2013
Filed:
Aug 23, 2011
Appl. No.:
13/215510
Inventors:
Vladimir M. Gold - Hillside NJ, US
Jeffrey R. Kraft - Newton NJ, US
Ernest L. Baker - Wantage NJ, US
Jeffrey R. Kraft - Newton NJ, US
Ernest L. Baker - Wantage NJ, US
Assignee:
The United States of America as Represented by the Secretary of the Army - Washington DC
International Classification:
F42B 12/22, F42B 12/28
US Classification:
102494, 102492, 102475
Abstract:
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.