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:
Jan. 07, 2014
Filed:
Jan. 07, 2011
Philip M. Rolchigo, Eden Prairie, MN (US);
John H. Burban, Lake Elmo, MN (US);
John Shanahan, White Bear Lake, MN (US);
Robert O. Crowder, Lino Lakes, MN (US);
Philip M. Rolchigo, Eden Prairie, MN (US);
John H. Burban, Lake Elmo, MN (US);
John Shanahan, White Bear Lake, MN (US);
Robert O. Crowder, Lino Lakes, MN (US);
Porous Media Corporation, St. Paul, MN (US);
Abstract
Embodiments of the invention provide a membrane module including a first plurality of fibers capable of filtering fluids that are helically wound in layers creating a mono helix. Fluids to be treated can flow radially with respect to a longitudinal axis of the mono helix or parallel to the longitudinal axis of the mono helix. The membrane module can further include a second plurality of fibers that are helically wound with the first plurality of fibers to create a dual helix. The second plurality of fibers can have different properties than the first plurality of fibers in order to achieve different filtering functionalities.