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:
Apr. 30, 2013
Filed:
Mar. 25, 2011
Yuri Gerner, Mendota Heights, MN (US);
Quan Liu, Shoreview, MN (US);
Carl W. Sims, Saint Paul, MN (US);
Yuri Gerner, Mendota Heights, MN (US);
Quan Liu, Shoreview, MN (US);
Carl W. Sims, Saint Paul, MN (US);
IDEX Health & Science LLC, Roseville, MN (US);
Abstract
A liquid degassing apparatus is arranged to limit pervaporation through a membrane by establishing a pervaporation control space at a permeate side of the membrane. The pervaporation control space is defined in a vacuum chamber between the membrane and a shield member. The shield member may be substantially gas and liquid impermeable to maintain an environment in contact with the permeate side of the membrane that is relatively rich in solvent vapor concentration, thereby limiting further liquid pervaporation across the membrane.