The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 29, 2000
Filed:
Feb. 27, 1998
Dean M Ball, Gainesville, GA (US);
Other;
Abstract
A high speed zone refiner (10) includes a plurality of elongated heating elements (23) mounted side by side to provide a plurality of spaced elongated heating zones and a sample tray (44) for holding an impure organic specimen. The zone refiner also includes a motor (36) and cam (38) arrangement for cyclically moving the sample tray generally horizontally over the heat bed. The heat bed includes cool zones interspersed between the hot zones with the cool zones comprising a plurality of elongated cooling channels (14) also mounted in a side by side arrangement but alternating with the heating elements. The sample tray is sealed and having a bottom (58) of flexible metallic foil. Using the refiner, hot and cold zones are moved laterally within the impure organic specimen causing impurities to migrate to one end of the sample tray.