USA As Represented by Secretary of the Navy

Douglas C Loup

Daniel D Coppens

Roger M Crane

Eugene C Fischer

John W Gillespie, Jr

Vincent J Castelli

Usman A Sorathia

Wayne C Jones

David P Owen

Deborah A Houghton

Ravanasamudram S Venkatachalam

Carlisle R Stephenson

Markus R Pipyne

Stephen M Andersen

A design for a high damping composite joint which dissipates vibrations through the use of air gaps and viscoelastic material minimizing the transfer of vibrations to the metallic coupling. Viscoelastic material is used with adhesive to provide for increased energy dissipation by the joint. As the load increases on the joint, the load transfers from adhesive to the viscoelastic. The viscoelastic begins to take the load of the joint at the point where the adhesive becomes plastic. Acoustic vibrations are then dissipated in the viscoelastic and are prevented from being transferred to the metallic coupling by air gaps provided in the joint. The amount of viscoelastic and adhesive used depends on the anticipated load. Finite element analysis is used to calculate optimal amounts of viscoelastic and adhesive.

High damping composite joint for mechanical vibration and acoustic

A protective device for a container containing toxic or hazardous materia includes a shell, a mechanism positioned in the shell for sealing a puncture in the container so as to prevent release of the toxic materials from the container and a mechanism for attaching the shell to the container.

Protective device for container

Growing community of inventors

Pasadena, MD, United States of America

Douglas C Loup