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.

Date of Patent:
Dec. 20, 2016

Filed:

May. 16, 2012
Applicants:

Prashant Vishwanath Shrikhande, Eden Prairie, MN (US);

Steven John Harrold, Chanhassen, MN (US);

Cha Moua, Brooklyn Center, MN (US);

Phillip Goebel, New Hope, MN (US);

Yatin Tayalia, Whitefield Bangalore, IN;

Prasanna Rao Dontula, Channasandra Bangalore, IN;

Inventors:

Prashant Vishwanath Shrikhande, Eden Prairie, MN (US);

Steven John Harrold, Chanhassen, MN (US);

Cha Moua, Brooklyn Center, MN (US);

Phillip Goebel, New Hope, MN (US);

Yatin Tayalia, Whitefield Bangalore, IN;

Prasanna Rao Dontula, Channasandra Bangalore, IN;

Assignee:

GENERAL ELECTRIC COMPANY, Schenectady, NY (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B29C 63/10 (2006.01); B65H 81/00 (2006.01); B29C 65/00 (2006.01); B32B 7/14 (2006.01); B29C 65/48 (2006.01); B32B 37/00 (2006.01); B01D 24/00 (2006.01); B01D 25/00 (2006.01); B01D 27/00 (2006.01); B01D 29/00 (2006.01); B01D 33/00 (2006.01); B01D 35/00 (2006.01); B01D 29/46 (2006.01); B01D 63/10 (2006.01); B29C 53/56 (2006.01); B01D 65/00 (2006.01); B32B 37/12 (2006.01);
U.S. Cl.
CPC ...
B01D 63/10 (2013.01); B01D 63/103 (2013.01); B01D 65/003 (2013.01); B01D 2313/04 (2013.01); B01D 2313/146 (2013.01); B29C 53/562 (2013.01); B29C 65/48 (2013.01); B29C 66/20 (2013.01); B32B 37/1292 (2013.01);
Abstract

Membrane elements that use multiple membrane leaves may have a limited total active membrane area due to an increased diameter at the ends of the element. Membrane leaves may comprise a permeate carrier positioned between one or more membrane sheets. Adhesive may be used to seal one or more edges of the membrane leaf. The membrane sheets, permeate carrier and the adhesive contribute to the thickness of the edges of the membrane leaf and the diameter at the ends of the element. A reduced thickness of the edges of the permeate carrier may reduce the diameter at the ends of an element. Another permeate carrier sheet may also be used that is distanced from at least one edge of the membrane sheet so the permeate carrier sheet does not contribute towards the increased diameter at the ends of the element.


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