Raytheon Company

Michael Andrew Brennan

Benjamin P Dolgin

Gray E Fowler

Steven Cotten

William G Suliga

John George Witzel

Jorge L Gutierrez

Jorge Gutierrez

Gray Fowler

A rocket throat insert including an annular body having a radially inner annular wall portion and a radially outer annular portion. The inner wall portion has a contoured radially inner surface defining a nozzle throat. The outer portion includes an annular buttressing structure supporting the inner wall portion and defining one or more insulation gaps arranged annularly around the inner wall portion. The insulation gaps restrict the radial flow of heat through the annular body.

Resin transfer molded rocket motor nozzle

A material deposition system for additive manufacturing including an extruder that defines a first input passage for supplying a first material, a second input passage for supplying a second material, a chamber for combining the first and second materials to form a combined deposition material, and an extrusion port for extruding the combined deposition material. The system further includes an adjustable sleeve that is movable between a first position and a second position to vary the interaction between the first material and the second material in the chamber. For example, the adjustable sleeve may be configured to separate the first and second materials in the chamber, and can vary the point at which the materials interface with each other prior to deposition based on the sleeve position. Such a system may enable a varying degree of infiltration, encapsulation, or other interaction between the first and second materials prior to deposition.

Material deposition system for additive manufacturing

A material deposition system for additive manufacturing including an extruder and a measuring device for measuring the viscosity and/or other rheological properties of a build material contained within the extruder. The measuring device may provide feedback to a controller for controlling one or more parameters depending on the measured viscosity and/or other rheological properties of the build material within the extruder. Two or more feed materials may be supplied to the extruder and a mixing device may be configured to mix the feed materials within the extruder to create a blended deposition material. The mixing device may be operatively coupled to the measuring device for simultaneously measuring the viscosity and/or other rheological properties of the materials during mixing. The controller may be configured to independently control one or more parameters associated with the materials depending on the viscosity and/or other rheological properties measured by the measuring device.

A system for search and rescue includes a rescue beacon including a radiation source to emit radiation, at least a portion of which includes ultraviolet c-band radiation, and an ultraviolet c-band detector to detect the ultraviolet c-band radiation to enable locating of the rescue beacon.

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Bristow, VA, United States of America

Michael Andrew Brennan