Robert Joseph Simonson

US Patent:

6617591, Sep 9, 2003

Filed:

Dec 3, 2001

Appl. No.:

10/004921

Inventors:

Robert J. Simonson - Cedar Crest NM
Bradley G. Hance - Albuquerque NM

Assignee:

Sandia Corporation - Albuquerque NM

International Classification:

G01N 2164

US Classification:

2504591, 436172

Abstract:

A method for remote detection of trace contaminants in a target area comprises applying sensor particles that preconcentrate the trace contaminant to the target area and detecting the contaminant-sensitive fluorescence from the sensor particles. The sensor particles can have contaminant-sensitive and contaminant-insensitive fluorescent compounds to enable the determination of the amount of trace contaminant present in the target are by relative comparison of the emission of the fluorescent compounds by a local or remote fluorescence detector. The method can be used to remotely detect buried minefields.

US Patent:

7799280, Sep 21, 2010

Filed:

Feb 16, 2006

Appl. No.:

11/355480

Inventors:

Ronald P. Manginell - Albuquerque NM, US
Patrick R. Lewis - Albuquerque NM, US
Douglas R. Adkins - Albuquerque NM, US
David R. Wheeler - Albuquerque NM, US
Robert J. Simonson - Cedar Crest NM, US

Assignee:

Sandia Corporation - Albuquerque NM

International Classification:

B01L 99/00

US Classification:

422101, 422 99, 422100, 2105101, 96108, 96143, 436180

Abstract:

A non-planar, tortuous path chemical preconcentrator has a high internal surface area having a heatable sorptive coating that can be used to selectively collect and concentrate one or more chemical species of interest from a fluid stream that can be rapidly released as a concentrated plug into an analytical or microanalytical chain for separation and detection. The non-planar chemical preconcentrator comprises a sorptive support structure having a tortuous flow path. The tortuosity provides repeated twists, turns, and bends to the flow, thereby increasing the interfacial contact between sample fluid stream and the sorptive material. The tortuous path also provides more opportunities for desorption and readsorption of volatile species. Further, the thermal efficiency of the tortuous path chemical preconcentrator is comparable or superior to the prior non-planar chemical preconcentrator. Finally, the tortuosity can be varied in different directions to optimize flow rates during the adsorption and desorption phases of operation of the preconcentrator.

US Patent:

7913534, Mar 29, 2011

Filed:

Jan 10, 2007

Appl. No.:

11/651890

Inventors:

Alex L. Robinson - Albuquerque NM, US
Ronald P. Manginell - Albuquerque NM, US
Matthew W. Moorman - Albuquerque NM, US
Philip J. Rodacy - Albuquerque NM, US
Robert J. Simonson - Cedar Crest NM, US

Assignee:

Sandia Corporation - Albuquerque NM

International Classification:

G01N 21/00

US Classification:

73 106

Abstract:

A microfabricated field calibration assembly for use in calibrating analytical instruments and sensor systems. The assembly comprises a circuit board comprising one or more resistively heatable microbridge elements, an interface device that enables addressable heating of the microbridge elements, and, in some embodiments, a means for positioning the circuit board within an inlet structure of an analytical instrument or sensor system.