USA As Represented by Secretary of the Navy

Mark D Lowell

Kirk E Newman

Steven L Jones

James A Gusack

Virgil Riffe

Philip Kneisl

Lester B Leonard, Iii

Daren T Knutson

A mixing vessel may include a container having a bottom with a removable plate fixed to the bottom. The removable plate may include one or more slots for inserting baffles therein. A flexible baffle insert may include a retaining band having inner and outer opposing surfaces. A plurality of baffles may extend inwardly from the inner surface of the retaining band.

Removable baffles for mixing vessel

A method is provided for making blast explosive molding powder. According to an aspect of the invention, energetic solids and a metal powder are suspended in a bulk phase fluid. Lacquer is added to an energetic solids and metal powder suspension to achieve a super-saturated solution. Final granulation of the super-saturated solution is optimized to form a fluidized metallized energetic molding powder. The fluidized metallized energetic molding powder is distilled to remove an organic solvent component of the lacquer, which is reclaimed through distillation. The bulk phase fluid is decanted to recover a wet metallized energetic molding powder. The bulk phase fluid is reclaimed through distillation. The wet metallized energetic molding powder is dried to form a dry metallized energetic molding powder. This method is especially useful in making insensitive enhanced blast explosive molding powders with high metal powder content.

Method for making insensitive enhanced blast explosive molding powders

A pressable explosive composition is provided. The composition includes at least 40 weight percent of substantially uncoated fuel particles, a nitramine mechanically blended with the substantially uncoated fuel particles, and a binder coating the nitramine. The binder constitutes about 1 to about 6 weight percent of the pressable explosive composition. Also provided are a pressed thermobaric explosive, weapons containing the pressed thermobaric explosive, and methods for making the composition and thermobaric explosive.

Thermobaric explosives and compositions, and articles of manufacture and methods regarding the same

A modular press assembly for performing multiple position pressing with a single press. The modular press assembly includes a floating mount attached to the upper platen of the press, a hydraulic cylinder, and a press ram coupled to the cylinder which automatically guides itself precisely into axial alignment with a die situated on a lower platen and containing material to be pressed. A plurality of such press assemblies are mounted on the upper platen and are connected through respective flow control valves to an independent hydraulic control system to allow adjustment of the travel of the multiple press rams. This configuration facilitates multiple position pressing and equally divides the total press force from the single hydraulic press, distributing it among each of the multiple positions independent of the final height of each pressed body.

Multiple position press

The present invention provides a method and apparatus for providing zero-defect pressed articles with minimal, remote operator intervention. The apparatus includes a programmable logic controller, controlling a powder feeder portion having a dump bucket which is weighed by an electronic scale. Desired weights of powder in the dump bucket are dumped to a first location and conveyed to the press. Non-desired weights of powder in the dump bucket are dumped to a second location and may be recycled. The invention provides for precise weighing of powder and avoids waste of powder in the event of improper powder dispensing and provides for complete automatic logging of production and testing data, and rejection of defective articles, avoiding the need to manually test each produced article. This method and apparatus are particularly useful in the pressing of energetic materials into pellets or casings, where manual operations are restricted for safety reasons.

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Gloucester, VA, United States of America

Mark D Lowell