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:
May. 14, 2013
Filed:
Jun. 29, 2011
Applicants:
Yuri Gerner, Mendota Heights, MN (US);
Quan Liu, Shoreview, MN (US);
Carl W. Sims, Saint Paul, MN (US);
Inventors:
Yuri Gerner, Mendota Heights, MN (US);
Quan Liu, Shoreview, MN (US);
Carl W. Sims, Saint Paul, MN (US);
Assignee:
IDEX Health & Science, LLC, Rohnert Park, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 53/22 (2006.01); B01D 19/00 (2006.01); B01D 61/36 (2006.01);
U.S. Cl.
CPC ...
Abstract
A liquid degassing apparatus is arranged to limit pervaporation through a membrane by attenuating pressure oscillations developed by a vacuum pump. The attenuation is obtained through a combination of one or more flow restrictors and added volume chambers fluidly interposed between the degassing chamber and the vacuum pump. The pressure oscillation attenuation may further inhibit cross-contamination of pervaporated solvents among a plurality of distinct degassing chambers.