Laser welding method and filter element produced by it

Details Laser welding method and filter element produced by it Laser welding method and filter element produced by it

2006-11-07

2011-10-04

Smith, Duane (Department: 1776)

Gas separation

With means securing or retaining separating media

Unit or cohesive sheet-like media in flow line or frame

C055S502000, C055S521000, C055SDIG007, C055SDIG031, C264S145000, C264S310000, C264S322000, C264SDIG048

Reexamination Certificate

active

08029589

ABSTRACT:
A method is provided for connecting a filter medium to a connection element, wherein the filter medium and the connection element are brought into contact with each other and connected to each other by exposure to laser radiation. The connection element may be welded to the end faces of filter folds in strips having a width of 1 mm. The connection element may include a laser light-absorbing layer and a laser light-transparent layer. The filter medium and connection elements may comprise nonwoven fabrics.

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International Preliminary Examination Report received in related International Patent Application No. PCT/EP2006/010640 dated May 22, 2008.
International Search Report received in related International Patent Application No. PCT/EP2006/010640 dated Jan. 31, 2007.

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