Battelle Memorial Institute

Electric Power Research Institute Incorporated

Bob W Wright

Jonathan S Fruchter

James R Skorpik

Thomas S Zemanian

Richard A Pappas

Aaron A Diaz

Larry Dean Reid

Paul D Panetta

Leslie J Kirihara

Brian J Tucker

John T Munley

Leslie J Woodcock

Todd J Samuel

Juan D Valencia

Kevin L Gervais

William H Robins

Jason S Thompson

A multiparameter acoustic signature inspection device and method are described for non-invasive inspection of containers. Dual acoustic signatures discriminate between various fluids and materials for identification of the same.

Methods and apparatus for multi-parameter acoustic signature inspection

The present invention is an apparatus for extracting organic compounds from solid materials. A generator vessel has a removable closure for receiving a solid or liquid solvent which is heated with a resistive heating element to a gaseous or supercritical phase. The removable closure is unencumbered because the side wall is penetrated with an outlet for the gaseous or supercritical solvent. The generator vessel further has a pressure transducer that provides an electronic signal related to pressure of the gaseous or supercritical solvent. The apparatus of the present invention further includes at least one extraction cell having a top and a bottom and a wall extending therebetween, wherein the bottom is sealably penetrated by an inlet for gaseous or supercritical solvent received through a manifold connected to the outlet, the top having an easy-open removable closure cap, and the wall having an outlet port. Finally, a permeable sample cartridge is included for holding the solid materials and to provide radial-flow of the extraction fluid, which is placed within the extraction cell.

Field-portable supercritical CO.sub.2 extractor

A field-portable supercritical fluid extraction apparatus uses an SFE solvent delivery means, SFE solvent cooling means, and reciprocating high pressure liquid chromatography pump having a cooled pumphead. A solid matrix sample is contained within an extraction cell. The SFE solvent is preheated in the extraction cell oven before it is introduced into the extraction cell. After contact with the solid matrix the extraction effluent passes through a heated restriction tube before passing into a collection flask assembly having a collection solvent tube and a collection solvent condenser to condense collection solvent vapors entrained by escaping SFE solvent. The analytes are collected in the collection solvent. The SFE solvent cooling means, pumphead and collection solvent condenser are all cooled by the combination of a single stage thermoelectric device, liquid-cooled heat exchanger and convective heat sink.

Field-portable apparatus and method for analytical supercritical fluid

Growing community of inventors

Richland, WA, United States of America

Bob W Wright