Robert R Reeber

Address:

1722 Lk Vly Trl, Chapel Hill, NC 27517

VIN:

1HGCM55117A017945

Make:

HONDA

Model:

ACCORD

Year:

2007

US Patent:

49560000, Sep 11, 1990

Filed:

Jun 28, 1989

Appl. No.:

7/374111

Inventors:

Robert R. Reeber - Chapel Hill NC
Wei-Kan Chu - Chapel Hill NC
Salah M. Bedair - Raleigh NC

International Classification:

C03B 1900
C23C 1904

US Classification:

65 181

Abstract:

A method for fabricating a lens in which the lens composition is controlled by dynamic shaping and shadowing. A lens material is vaporized and directed to a substrate through an orifice which is rotating relative to the substrate about the lens axis and which has a non-uniform radial distribution. The lens material is condensed on the substrate to form a lens having a radially non-uniform but axially symmetrical distribution. Thereafter, the original orifice may be replaced by a complimentary orifice and another lens material vaporized and directed to the substrate through the replacement orifice which is also rotating relative to the substrate about the lens axis and which also has a non-uniform radial distribution. This second lens material condenses on the first condensed lens material to form a compound lens.

US Patent:

50751301, Dec 24, 1991

Filed:

Nov 19, 1990

Appl. No.:

7/618195

Inventors:

Robert R. Reeber - Chapel Hill NC
Wei K. Chu - Houston TX
Ning Yu - Houston TX

Assignee:

The United States of America as represented by the Secretary of the Army - Washington DC

International Classification:

B05D 306
C23C 1400

US Classification:

427 38

Abstract:

A method of forming solid lubricant pockets in boron based and boron containing ceramic materials (i. e. boron carbide) by nitrogen ion implantation and laser annealing. By employing the present method said solid lubricant pockets may be formed in approximately the first 750 Angstroms of the surface and near surface regions of, for example, a polycrystalline boron carbide sample. Moreover, the present invention enables one to direct the formation of solid lubricants to specific areas on the boron based or boron containing ceramics to meet a specific need. The product of the present invention is a ceramic having a reduced coefficient of friction, greater durability, and reduced chipping and fracture.