Northrop Grumman Systems Corporation

Andrew D Kostelec

John A Starkovich

Edward M Silverman

Jesse B Tice

Hsiao-Hu Peng

Xianglin Zeng

A polygonally shaped carbon nanotube (CNT) sheet optical bellows providing enhanced stray light suppression, the polygonally shaped CNT sheet optical bellows includes: a free-standing non-woven CNT sheet; a polymer bonded to the non-woven CNT sheet; and an elastomer film bonded to the polymer film, creating a laminate film, the laminate film being rolled to form a cylinder by applying an adhesive along a bonding edge of the laminate film to adhere the bonding edge to an opposite edge of the laminate film, an outer side of the laminate film comprising diamond-shaped elements, the diamond-shaped elements being pinched, pressed, folded and collapsed in a rotating manner around a circumference of the cylinder, creating the polygonally shaped CNT sheet optical bellows.

Carbon nanotube sheet optical bellows with enhanced stray light suppression and method of manufacture

An exemplary passive heat transfer apparatus is suited for transferring heat away from an electronic heat generating device to another environment. A gasket has many spaced-apart holes that are transverse to two major opposing surfaces of the gasket. A thermally conductive material is disposed within and fills the holes for conducting heat from one of the two major surfaces to the other major surface. The thermally conductive material is a nanocomposite material having nano-particles aligned substantially perpendicular to the two major opposing surfaces. The thermally conductive material as disposed in the holes has no interfacial boundaries that could adversely affect the transfer of heat.

Thermal gasket with high transverse thermal conductivity

A heat spreader for printed wiring boards and a method of manufacture are disclosed. The heat spreader is made from a plurality of graphene sheets that are thermo-mechanically bonded using an alloy bonding process that forms a metal alloy layer using a low temperature and pressure that does not damage the graphene sheets. The resulting heat spreader has a higher thermal conductivity than graphene sheets alone.

Growing community of inventors

Fullerton, CA, United States of America

Andrew D Kostelec