Raymond D Dixon

US Patent:

6429402, Aug 6, 2002

Filed:

Jun 2, 2000

Appl. No.:

09/587183

Inventors:

Raymond D. Dixon - Los Alamos NM
Gary K. Lewis - Los Alamos NM
John O. Milewski - Santa Fe NM

Assignee:

The Regents of the University of California - Los Alamos NM

International Classification:

H05B 100

US Classification:

21912163, 21912164, 21912182

Abstract:

It has been discovered that wires and small diameter rods can be produced using laser deposition technology in a novel way. An elongated article such as a wire or rod is constructed by melting and depositing particulate material into a deposition zone which has been designed to yield the desired article shape and dimensions. The article is withdrawn from the deposition zone as it is formed, thus enabling formation of the article in a continuous process. Alternatively, the deposition zone is moved along any of numerous deposition paths away from the article being formed.

US Patent:

56158262, Apr 1, 1997

Filed:

Aug 29, 1995

Appl. No.:

8/520632

Inventors:

Raymond D. Dixon - Los Alamos NM
Frank M. Smith - Espanola NM
Richard F. O'Leary - Los Alamos NM

Assignee:

The United States of America as represented by the United States
Department of Energy - Washington DC

International Classification:

B23K 1500

US Classification:

228208

Abstract:

A method is provided for joining beryllium pieces which comprises: depositing aluminum alloy on at least one beryllium surface; contacting that beryllium surface with at least one other beryllium surface; and welding the aluminum alloy coated beryllium surfaces together. The aluminum alloy may be deposited on the beryllium using gas metal arc welding. The aluminum alloy coated beryllium surfaces may be subjected to elevated temperatures and pressures to reduce porosity before welding the pieces together. The aluminum alloy coated beryllium surfaces may be machined into a desired welding joint configuration before welding. The beryllium may be an alloy of beryllium or a beryllium compound. The aluminum alloy may comprise aluminum and silicon.

US Patent:

54957630, Mar 5, 1996

Filed:

Jun 10, 1993

Appl. No.:

8/075159

Inventors:

George W. Rhodes - Albuquerque NM
Albert Migliori - Sante Fe NM
Raymond D. Dixon - White Rock NM

International Classification:

G01H 1300

US Classification:

73579

Abstract:

A method of measurement of objects to determine object flaws, Poisson's ratio (. sigma. ) and shear modulus (. mu. ) is shown and described. First, the frequency for expected degenerate responses is determined for one or more input frequencies and then splitting of degenerate resonant modes are observed to identify the presence of flaws in the object. Poisson's ratio and the shear modulus can be determined by identification of resonances dependent only on the shear modulus, and then using that shear modulus to find Poisson's ratio using other modes dependent on both the shear modulus and Poisson's ratio.

US Patent:

53557310, Oct 18, 1994

Filed:

May 8, 1992

Appl. No.:

7/880393

Inventors:

Raymond D. Dixon - Los Alamos NM
Albert Migliori - Santa Fe NM
William M. Visscher - Los Alamos NM

Assignee:

The Regents of the University of California, Office of Technology
Transfer - Alameda CA

International Classification:

G01H 1300

US Classification:

73579

Abstract:

A method is provided for grading production quantities of spherical objects, such as roller balls for bearings. A resonant ultrasound spectrum (RUS) is generated for each spherical object and a set of degenerate sphere-resonance frequencies is identified. From the degenerate sphere-resonance frequencies and known relationships between degenerate sphere-resonance frequencies and Poisson's ratio, a Poisson's ratio can be determined, along with a "best" spherical diameter, to form spherical parameters for the sphere. From the RUS, fine-structure resonant frequency spectra are identified for each degenerate sphere-resonance frequency previously selected. From each fine-structure spectrum and associated sphere parameter values an asphericity value is determined. The asphericity value can then be compared with predetermined values to provide a measure for accepting or rejecting the sphere.

US Patent:

54658977, Nov 14, 1995

Filed:

Mar 29, 1994

Appl. No.:

8/220306

Inventors:

Raymond D. Dixon - Los Alamos NM
Lawrence H. Roe - Los Alamos NM
Albert Migliori - Santa Fe NM

Assignee:

The Regents of the University of California, Office of Technology
Transfer - Alameda CA

International Classification:

B23K 119
B23K10136

US Classification:

228121

Abstract:

An ultrasonic transducer is formed as a diffusion bonded assembly of piezoelectric crystal, backing material, and, optionally, a ceramic wear surface. The mating surfaces of each component are silver films that are diffusion bonded together under the application of pressure and heat. Each mating surface may also be coated with a reactive metal, such as hafnium, to increase the adhesion of the silver films to the component surfaces. Only thin silver films are deposited, e. g. , a thickness of about 0. 00635 mm, to form a substantially non-compliant bond between surfaces. The resulting transducer assembly is substantially free of self-resonances over normal operating ranges for taking resonant ultrasound measurements.

Address:

5966 Watson Dr, Fort Collins, CO 80528

VIN:

2T2HK31U27C022741

Make:

LEXUS

Model:

RX 350

Year:

2007