Northrop Grumman Systems Corporation

Vought Aircraft Industries, Inc.

Charles J Weizenecker

Charles A Parente

Jerrell Anthony Nardiello

John Steven Madsen

Don DiMarzio

George W Gilchrist

John Abraham Crawford

Steve Chu

Dom Anton

One example includes a repair assembly that is comprised of a composite patch, an adhesive, and a veil. The adhesive is disposed between a composite structure that includes an anomaly to be repaired and the composite patch and the composite patch. The veil is disposed between the composite structure and the composite patch. The veil generates heat in response to electric power being applied to the veil, with the adhesive being cured with the heat generated with the veil to repair the composite structure including the anomaly.

Veil based composite structure repair

A method of thermoplastic coating composite structures includes heating a tool. A thermoplastic layer is deposited onto the heated tool by thermal spraying a thermoplastic on the heated tool. Composite material is applied onto the thermoplastic layer. The thermoplastic layer and the composite material are then cured.

Thermoplastic coating for composite structures

An acoustic liner employable in jet engine housing construction for sound absorption such as for inclusion in nacelle components. The liner has a solid backface sheet having a surface to which is attached a first side of a honeycomb core structure. Attached to the opposing second side of the honeycomb core structure is a mesh structure to which is attached a perforated face sheet to be exposed to the exterior. As is thus apparent, the liner of the present invention provides a mesh situated below a protective perforate sheet. This construction produces an acoustic liner having substantially the efficiency of a linear liner system and the durability of a perforate face sheet system.

Method of fabricating an acoustic liner

Growing community of inventors

Stony Brook, NY, United States of America

Charles J Weizenecker