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Braid welding

  • US 9,227,362 B2
  • Filed: 08/23/2012
  • Issued: 01/05/2016
  • Est. Priority Date: 08/23/2012
  • Status: Active Grant
First Claim
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1. A hollow fiber membrane comprising:

  • a plurality of filaments forming a braided tubular support, anda polymeric membrane wall attached to the tubular support,wherein the filaments cross each other in both radial and circumferential directions,and wherein the filaments are ultrasonically welded together at one or more intersections where the filaments cross each other.

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