Title:
METHOD FOR MANUFACTURING A FILTER FROM SHEET METAL AND A FILTER MANUFACTURED BY THE METHOD
Document Type and Number:
WIPO Patent Application WO/2015/071532
Kind Code:
A3
Abstract:
The object of the invention is a method for manufacturing a filter from sheet metal and a filter manufactured by the method. In the method are used two perforated sheets (12, 13) mounted at a distance from one another, between which is formed a space (16) for the filtered liquid. In the method, on at least one edge of one of the sheets (12; 13) is formed a connecting groove (1;1'; 4; 4') by bending the edge (17, 21) of the sheet. In the connecting groove is placed the connecting part (14; 18; 17; 19; 21; 9) of either a separate edge strip (2; 5) or of the opposite sheet (12; 13) in such a way that the said connecting part can be moved to the correct location in the connecting groove, after which the connecting part is connected to the connecting groove by welding.
Inventors:
SALMINEN TERO (FI)
HANSKI TAPANI (FI)
TOIVANEN EEMELI (FI)
HANSKI TAPANI (FI)
TOIVANEN EEMELI (FI)
Application Number:
PCT/FI2014/050810
Publication Date:
October 01, 2015
Filing Date:
October 29, 2014
Export Citation:
Assignee:
CONTROL EXPRESS FINLAND OY (FI)
International Classes:
B01D29/01; B01D29/03; B01D29/11; B01D29/33
Domestic Patent References:
| WO2003051487A1 | 2003-06-26 |
Foreign References:
| GB555812A | 1943-09-08 |
Attorney, Agent or Firm:
LEITZINGER OY (Helsinki, FI)
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