Abstract: The present invention shows an apparatus and method for the determination of clearances for safety of personnel and safe storage of critical assets within a structure. The method comprises the steps of choosing appropriate test locations on top of the structure, using a test apparatus including a signal generator, a receiver and a computer, injecting low-level test currents at each test locations, measuring the resulting electromagnetic fields; calculating the transfer functions for the structure, and determining the internal energy levels that lightning strikes would cause inside the structure in order to determine a safe stand-off distance for critical assets or personnel within the structure.
Type:
Grant
Filed:
November 9, 2000
Date of Patent:
June 18, 2002
Assignee:
The United States of America as represented by the Secretary
of the Army
Inventors:
Jacob K. Struck, Philip J. Magnotti, John C. Jessee, Henry H. Lee, George K. Khowong
Abstract: An infrared illuminating composition comprising approximately 70 weight % of an oxidant evidencing strong emission in the NIR region selected from the group consisting of potassium nitrate, cesium nitrate and mixtures thereof; 9 weight % of a metallic fuel evidencing low visible light emission, 4 weight % of an epoxy resin binder, 16 weight % of a NIR light enhancer and 1% by weight of an additive selected from the group consisting of a double base propellant material, a triple base propellant material and mixtures thereof.
Type:
Grant
Filed:
October 29, 1998
Date of Patent:
May 15, 2001
Assignee:
The United States of America as represented by the Secretary
of the Army
Inventors:
Patricia L. Farnell, Russell Broad, Stuart Nemiroff
Abstract: A novel cyclotetraphosphazene compound, 1,1-diamino-3,3,5,5,7,7-hexaazidocyclotetraphosphazene, is disclosed which has application as an energetic compound and percussion primer. Also disclosed is a method of preparing the compound.
Type:
Grant
Filed:
August 15, 2000
Date of Patent:
May 15, 2001
Assignee:
The United States of America as represented by the Secretary
of the Navy
Inventors:
Farhad Forohar, Paritosh R. Dave, Sury Iyer
Abstract: A novel cyclotetraphosphazene compound, 1,5-diamino-1,3,3,5,7,7-hexaazidocyclotetraphosphazene, is disclosed which has application as an energetic compound. Also disclosed is a method of preparing the compound.
Type:
Grant
Filed:
September 15, 2000
Date of Patent:
April 17, 2001
Assignee:
The United States of America as represented by the Secretary
of the Army
Inventors:
Farhad Forohar, Paritosh R. Dave, Sury Iyer