Foster-miller, Inc.

Aztex, Inc.

Constance Lee Magee

Joseph S Boyce

Glenn A Freitas

Thomas M Fusco

Edward Kunkel

Glen Freitas

John J Harris

David Rich

Eric Blaney

A sandwich structure including a core having opposing top and bottom surfaces, a plurality of discrete pins disposed through the core and extending beyond the top and bottom surfaces of the core, a face sheet on the top core surface, and a face sheet on the bottom core surface. The ends of each pin are bent over and lie between the respective core surfaces and the face sheets to secure the face sheets to the core, improve the strength of the core, and to provide a physical connection between the two face sheets. Also disclosed is a reinforced core for a sandwich structure which does not yet have the face sheets assembled to it. Also disclosed is a method of making such a reinforced core and completed sandwich structures including such a core.

Sandwich structure and method of making same

An ultrasonic fastening system wherein an ultrasonic transducer is used to insert a plurality of fasteners supported by a compressible member into two components to be joined or a single composite part to be reinforced.

Ultrasonic fastening system and method

A translaminar reinforcement system for Z-direction reinforcement of a fiber matrix structure in which a plurality of reinforcing elements are disposed in a body of compactible material to extend in at least one direction and orientated at at least one acute angle and driven into a fiber matrix structure when the body is compacted by a compressive force.

Translaminar reinforcement system for Z-direction reinforcement of a

A method of joining composite parts including disposing reinforcing elements through the thickness of two composite adherends to be joined, at least a number of the reinforcing elements extending from the joint surface of each adherend; assembling the adherends so the joint surface of one faces the joint surface of the other defining a joint region therebetween, wherein the extending reinforcing elements are interstitially disposed in the joint region; and disposing an adherent within the joint region about the interstitially disposed reinforcing elements and the joint surface for providing an improved and reinforced joint.

Reinforced joint for composite structures and method of joining

A method of and system for inserting reinforcing pins in a composite structure in which a number of reinforcing pins are inserted in a compressible material; the compressible material/pin combination is assembled on the composite structure; ultrasonic energy is applied to the pins; and pressure is applied simultaneously with the application of ultrasonic energy to compress the compressible material and insert the pins into the composite structure to join two laminates or reinforce a single composite structure.

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Littleton, MA, United States of America

Constance Lee Magee