Specifications
The Patent Office Journal 17/12/2010 
4612
(12) PATENT APPLICATION PUBLICATION  (21) Application No.2071/CAL/1998 A 
(19) INDIA 
(22) Date of filing of Application :24/11/1998  (43) Publication Date : 17/12/2010 
(54) Title of the invention : PROCESS AND EQUIPMENT FOR COATING A METAL STRIP 
(51) International classification  :C23C 2/20 
(31) Priority Document No  :19756877.7 
(32) Priority Date  :19/12/1997
(33) Name of priority country  :Germany 
(86) International Application No 
 Filing Date 
:NA 
:NA 
(87) International Publication No  : NA 
(61) Patent of Addition to Application Number 
 Filing Date 
:NA 
:NA 
(62) Divisional to Application Number 
 Filing Date 
:NA 
:NA 
(71)Name of Applicant : 
 1)SIEMENS AKTIENGESELLSCHAFT 
 Address of Applicant :WITTELSBACHERPLATZ 2, 80333 
MUENCHEN Germany 
(72)Name of Inventor : 
 1)WILFRIED SCHLECHTER 
(57) Abstract : 
Process and equipment for coating a metal strip (5), which runs through a bath (11) of coating metal, in particular zinc, some of the 
coating metal, after leaving the bath (11), being blown away by air which emerges from at least one nozzle (6, 10). The layer 
thickness of the coating metal on the metal strip (5) is controlled by means of a coating model (30) as a function of the distance (a, a
o
, 
a
u
) between the metal strip (5) and the nozzle (6, 10), the distance between the metal strip (5) and the nozzle (6, 10) being ascertained 
by means of an inverse coating model (31). 
No. of Pages : 17 No. of Claims : 14 










