[12] Patent
[11] Patent No.:GC0007789  
[45] Date of Publishing the Grant of the Patent: 31/May /2018                49/2018  
Number of the Decision to Grant the Patent:2018/127561
Date of the Decision to Grant the Patent:17/May/2018

[21] Application No.:GC 2011-18674

[22] Filing Date:26/6/2011

[30] Priority:

[33] State [32] Priority date [31] Priority No.
FR
28/6/2010
10/02688

[72] Inventors:1- Jérôme GUERIN،2- Alain ROSE،3- Frédéric BRUN،4- Serge DESPINASSE،5- RIO TINTO ALCAN INTERNATIONAL LIMITED

[73] Owners:1- E.C.L., 100, rue chalant, 59790, Ronchin, France،2- RIO TINTO ALCAN INTERNATIONAL LIMITED , 1188 Sherbrooke Street West, QUEBEC H3A 3G2, Montreal, Canada

[74] Agent: Suleiman I. Al-Ammar Law Office

  

 

  

[51]IPC:
Int. Cl.: B23P 19/025; C25C 3/16, 7/005, 7/06 (2006.01)

[56] Cited Documents:

-EP 2 080 820 A1 (ALCAN INT LTD [CA]) 22 July 2009
-CN 201 010 699 Y (HENAN ZHONGFU INDUSTRY CO LTD [CN]) 23 January 2008
 
Examiner: Eng. Yusuf AlRaqabi

[54] DEVICE FOR EXTRACTING SHORT-CIRCUITING WEDGES DESIGNED FOR SWITCHING IN AN ELECTROLYSIS CELL FOR THE PRODUCTION OF ALUMINUM
[57] Abstract: Extraction device (30) designed to extract a short-circuiting wedge (20) inserted between two conductors (24 and 25} to take an electrolysis cell (2) off line. The extraction device (30) includes a means of gripping (31) said wedge and, in conjunction with the upper horizontal face (240, 250) of each conductor (24, 25), at least one jack (32) directed vertically and including a body (320) and a stem (321), a) said stem (or said body) being interdependent with at least one horizontal support face (335) directed downwards and laid out so that, when said extraction device is placed above said wedge to extract it, the upper horizontal face (240, 250) of each conductor (24, 25) is in line with one horizontal support face (335), b) said body (or said stem} being connected to said means of gripping (31) said wedge, so that, when said jack (32) is actuated to extract the wedge, said jack exerts opposing forces on said conductors and said wedge, tending to separate them.
No. of claims: 16     No. of figures: 3


 

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