Sikorsky Aircraft Corporation

David M Cournoyer

Thomas Arthur Carstensen

Neil W Cawthra

Christian A Rogg

Dan Ursenbach

Nell W Cawthra

Michael G Osiecki

Dan O Ursenbach

An aircraft floor system includes a composite panel which generally includes an inboard layer, an inboard interlock layer, a core layer, an outboard interlock layer and an outboard layer. The advanced sandwich core material may include K-Cor&#x2122; or X-Cor&#x2122; which is pinned through at least one ply of dry composite reinforcement to provide a mechanical lock between the pins and an inboard and outboard interlock layer. Bonding of the locked-in ply with the inboard and outboard results in improved structural performance and damage tolerance.

Composite aircraft floor system

A reinforcement tube includes at least one composite ply material strip in a coil configuration. The coil configuration defines a tube rectilinear in cross-section and a helical opening.

Composite core densification

A reinforcement tube for composite core densification and a composite article therewith.

The composite molding apparatus includes a rigid base member and a complementary semi-rigid mold member or &ldquo;black bag&rdquo; caul plate having a sieve member formed therein. The sieve member layer of the semi-rigid mold member engages pins which extend from the sandwich core to limit penetration into the semi-rigid mold member to a predetermined depth. The semi-rigid mold member is supported relative to the rigid mold member by the pins to provide uniform pressure transfer to the composite article during a high pressure co-cure molding process without crushing the sandwich core.

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Seymour, CT, United States of America

David M Cournoyer