Ionbond, Inc.

Duro-test Corporation

Raymond P Fontana

Robert Reuven Aharonov

Peter J Walsh

Luke Thorington

Donald G Trutner

James M South

Sridhar Chellapilla

Bernard J Janoss

David Kovacs

Coatings for use in artificial joints and other implanted medical devices. The coatings comprise a dual layer structure vapor deposited atop a medical grade substrate, such as cobalt chromium. The dual layer structure comprises a first ceramic layer vapor deposited atop at least a portion of the substrate and a second ceramic layer deposited atop the first ceramic layer. The first ceramic layer is formed of a material which has particularly good adhesion to the substrate, and the second ceramic layer from a material exhibiting particularly high hardness and good wear characteristics. The vapor deposition process is controlled so as to form a graded interface between the two ceramic layers to form a dual layer coating which resists delamination, adheres well to the substrate, and exhibits good wear characteristics in situ.

Dual layer diffusion bonded chemical vapor coating for medical implants

A valving assembly for a motor vehicle includes a hard, lubricious and chemically inert coating of graphitic carbon. The coating may include a metal. Preferred metals include chromium or other transition metals.

Article having a hard lubricious coating

Coatings of doped chromium nitride protect forming members such as dies from the corrosive effects of molten aluminum and other reactive metals.

Forming members for shaping a reactive metal and methods for their fabrication

An incandescent electric lamp having a coating to reflect infrared energy back to the filament to raise its operating temperature in which the envelope is shaped as an ellipsoid and the filament and envelope have a relationship to reduce losses due to aberration and to produce a more uniform temperature distribution along the filament.

Ellipsoidal envelope for incandescent lamp with infrared energy return

An incandescent electric lamp having an envelope with a portion through which a pair of lead-in studs are brought out, the filament leads being connected to the studs. The lamp is sealed off in the area where the studs are located and an adaptor is provided to make contact with the portions of the studs extending through the envelope so that the lamp can be mounted in a socket.

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Waldwick, NJ, United States of America

Raymond P Fontana