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:
Jul. 31, 2001
Filed:
Oct. 08, 1998
Applicant:
Inventors:
Bradley W. Reed, Gastonia, NC (US);
Martin J. Weinstein, Charlotte, NC (US);
Assignee:
Celgard Inc., Charlotte, NC (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61M 1/14 ; A61M 3/700 ; A61M 1/34 ; B01D 2/400 ;
U.S. Cl.
CPC ...
A61M 1/14 ; A61M 3/700 ; A61M 1/34 ; B01D 2/400 ;
Abstract
An apparatus and method for removing entrained gases from a liquid by directing a liquid flow adjacent a substantially hydrophobic microporous membrane material and providing a negative pressure to one side of the membrane material to draw undissolved gas bubbles out of the liquid and through the membrane walls.