Back to results
US 6,296,769 B1Granted
Multi-chambered supercritical fluid extraction cartridge and processes using it
AssigneeIsco, Inc.
InventorsHenry Walters, Dale Messer, Dale Clay, Robert W. Allington
Life of this patent
Estimating the term…
Abstract
A multiple chamber sample holding cartridge is used with a supercritical fluid extractor that causes membranes dividing the cartridge into chambers to rupture upon the pressurization of the sample cartridge, thereby allowing the intermixing of materials contained in the chambers. The neutral oil and loss determination of soybean and other oilseed oils by supercritical fluid extraction is efficient with this two-chambered sample cartridge.
Claims12
A method of supercritical fluid extraction comprising the steps of:
- applying supercritical fluid to a first chamber of a sample cartridge while preventing flow to a second chamber;
- after supercritical fluid has been applied to said first chamber of said cartridge, permitting said supercritical fluid from said first chamber to flow into a second chamber;
- permitting at least a portion of the fluid from said second chamber to be collected.
Dependencies are inferred from the claim text.