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. 19, 1991
Filed:
Jan. 30, 1990
Stephen A Uban, Stillwater, MN (US);
CPC Engineering Corporation, Sturbridge, MA (US);
Abstract
A crossflow filtration assembly includes a plurality of crossflow filtration modules connected in series, a pump for introducing a solution containing large components and small components, and a pump for circulating the solution between the series-connected modules. Each module has an inlet for receiving the large and small components in solution, a semipermeable membrane for passing only the small particles in solution to be discharged from the assembly, and an outlet for passing the large components in solution to be circulated to the inlet of the next series-connected module. Prior to entering the next series-connected module, the large components in solution are diluted by incoming solution.