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:
Jan. 30, 1990
Filed:
Apr. 03, 1989
Milan Bier, Tucson, AZ (US);
Garland E Twitty, Tucson, AZ (US);
Other;
Abstract
The disclosure is directed to a process and apparatus for isoelectric focusing and isotachophoresis of fluids. Recycling of the process fluid is established in a first direction through an electrophoretic chamber having parallel walls, the electric field being applied in a second direction. Externally of the chamber, the flow of fluid is subdivided into a plurality of closed loops, cooled to dissipate the Joule heat. While maintaining conditions of laminar flow within the chamber, unusual fluid stabilization against convective, electroosmotic and other fluid flow disturbances is obtained if the gap between the parallel walls of the chamber is kept narrow and the fluid flow is rapid, to maximize shear stress at the walls of the chamber and minimize the fluid residence time in the chamber.