1
George C Wei: Silicon carbide whisker reinforced ceramic composites and method for making same. The United States of America represented by the Department of Energy, Earl L Larcher, Stephen D Hamel, Judson R Hightower, September 24, 1985: US04543345 (145 worldwide citation)

The present invention is directed to the fabrication of ceramic composites which possess improved mechanical properties especially increased fracture toughness. In the formation of these ceramic composites, the single crystal SiC whiskers are mixed with fine ceramic powders of a ceramic material suc ...


2
Robert A Hawsey, J Milton Bailey: Ultra-high speed permanent magnet axial gap alternator with multiple stators. The United States of America represented by the United States Department of Energy, David E Breeden, Stephen D Hamel, William R Moser, February 26, 1991: US04996457 (110 worldwide citation)

An ultra-high speed, axial gap alternator that can provide an output to a plurality of loads, the alternator providing magnetic isolation such that operating conditions in one load will not affect operating conditions of another load. This improved alternator uses a rotor member disposed between a p ...


3
Walter P Eatherly, J M Robbins, David E Rosson Sr: Method of fabricating graphite for use as a skeletal prosthesis and product thereof. The United States of America represented by the United States Department of Energy, Dean E Carlson, Stephen D Hamel, John B Hardaway, January 24, 1978: US04070514 (98 worldwide citation)

A method for producing porous graphite for use as bone replacement with a structure for osteon penetration. Graphite is produced with ordered circular pores of 100 to 1000 microns in diameter covering at least 25% of the exposed surfaces. A cylindrical fiber is coated with a carbon flour-pitch mix a ...


4
Kimberly N Castleberry: Compressor surge counter. David E Breeden, Stephen D Hamel, Richard G Besha, August 16, 1983: US04399548 (79 worldwide citation)

A surge counter for a rotating compressor is provided which detects surging by monitoring the vibration signal from an accelerometer mounted on the shaft bearing of the compressor. The circuit detects a rapid increase in the amplitude envelope of the vibration signal, e.g., 4 dB or greater in less t ...


5
Jagdish Narayan, Clark W White, Rosa T Young: Method for making defect-free zone by laser-annealing of doped silicon. The United States of America represented by the United States Department of Energy, R V Lupo, Stephen D Hamel, Fred O Lewis, January 1, 1980: US04181538 (75 worldwide citation)

This invention is a method for improving the electrical properties of silicon semiconductor material. The method comprises irradiating a selected surface layer of the semiconductor material with high-power laser pulses characterized by a special combination of wavelength, energy level, and duration. ...


6
Paul L Micheli, Mark C Williams, Frederick A Sudhoff: Indirect-fired gas turbine dual fuel cell power cycle. The United States of America represented by the United States Department of Energy, David E Breeden, Stephen D Hamel, William R Moser, July 30, 1996: US05541014 (64 worldwide citation)

A fuel cell and gas turbine combined cycle system which includes dual fuel cell cycles combined with a gas turbine cycle wherein a solid oxide fuel cell cycle operated at a pressure of between 6 to 15 atms tops the turbine cycle and is used to produce CO.sub.2 for a molten carbonate fuel cell cycle ...


7
Harold D Kimrey Jr: Method and device for microwave sintering large ceramic articles. The United States of America represented by the Department of Energy, David E Breeden, Stephen D Hamel, William R Moser, October 16, 1990: US04963709 (62 worldwide citation)

A microwave sintering system and method are provided for extremely uniform sintering of large and/or irregular shaped ceramic articles at microwave frequencies of at least 28 GHz in the hundreds of kilowatts power range in an untuned cavity. A 28 GHz, 200 kw gyrotron with variable power output is us ...


8
Walter J Lackey Jr, Anthony J Caputo: Process for the preparation of fiber-reinforced ceramic composites by chemical vapor deposition. The United States of America represented by the United States Department of Energy, Earl L Larcher, Stephen D Hamel, Judson R Hightower, April 8, 1986: US04580524 (60 worldwide citation)

A chemical vapor deposition (CVD) process for preparing fiber-reinforced ceramic composites. A specially designed apparatus provides a steep thermal gradient across the thickness of a fibrous preform. A flow of gaseous ceramic matrix material is directed into the fibrous preform at the cold surface. ...


9
Robert L Shepard, Theron V Blalock, Michael J Roberts, Lonnie C Maxey: Optical Johnson noise thermometry. The United States of America represented by the United States Department of Energy, David E Breeden, Stephen D Hamel, William R Moser, March 24, 1992: US05098197 (58 worldwide citation)

Method and device for direct, non-contact temperature measure of a body. A laser beam is reflected from the surface of the body and detected along with the Planck radiation. The detected signal is analyzed using signal correlation technique to generate an output signal proportional to the Johnson no ...


10
James E Hall, Everett H Williams: Wetter for fine dry powder. Dean E Carlson, David S Zachry, Stephen D Hamel, May 3, 1977: US04021021 (57 worldwide citation)

A system for wetting fine dry powders such as bentonite clay with water or other liquids is described. The system includes a wetting tank for receiving water and a continuous flow of fine powder feed. The wetting tank has a generally square horizontal cross section with a bottom end closure in the s ...