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(12) Patent: | (11) CA 2672507 |
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(54) English Title: | METHOD FOR THE HEATING OF ANODE BLOCKS, AND AN ARRANGEMENT FOR THE HEATING OF ANODE BLOCKS |
(54) French Title: | PROCEDE POUR LE CHAUFFAGE DE BLOCS ANODIQUES, ET CONCEPTION DU CHAUFFAGE DE BLOCS ANODIQUES |
Status: | Granted and Issued |
(51) International Patent Classification (IPC): |
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(72) Inventors : |
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(73) Owners : |
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(71) Applicants : |
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(74) Agent: | GOWLING WLG (CANADA) LLP |
(74) Associate agent: | |
(45) Issued: | 2015-02-24 |
(86) PCT Filing Date: | 2007-11-27 |
(87) Open to Public Inspection: | 2008-06-19 |
Examination requested: | 2012-09-27 |
Availability of licence: | N/A |
Dedicated to the Public: | N/A |
(25) Language of filing: | English |
Patent Cooperation Treaty (PCT): | Yes |
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(86) PCT Filing Number: | PCT/SE2007/050904 |
(87) International Publication Number: | SE2007050904 |
(85) National Entry: | 2009-06-11 |
(30) Application Priority Data: | ||||||
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A method for the heating of anode blocks, which anode blocks (2) are used during the production of aluminium and comprise contact holes (3) into which it is arranged that electrical contacts are to be attached. The invention is characterised in that the holes (3) are caused to be heated by means of radiative heat from electri- cal resistive elements (4, 5, 6) arranged to be used at high temperatures, in that the wire of the elements (4, 5, 6) is in the form of shanks with two or more legs, in that each one of the elements (4, 5, 6) is caused to be arranged in a cup (7, 8, 9) with an open end surface, in that one cup (7, 8, 9) for each hole (3) in the anode block (2) is caused to lie in front of the hole(3) in question. The invention relates also to an arrangement.
Procédé destiné à chauffer des blocs anodiques, lesquels blocs anodiques (2) sont utilisés lors de la production d'aluminium et comprennent des trous (3) de contact dans lesquels on décide de fixer des contacts électriques. L'invention est caractérisée en ce que les trous (3) sont amenés à être chauffés au moyen d'une chaleur radiative à partir d'éléments résistants électriques (4, 5, 6) conçus pour être utilisés à de hautes températures, en ce que le câble électrique des éléments (4, 5, 6) se trouve sous la forme de tiges dotées de deux ou plus de tronçons, en ce que chacun des éléments (4, 5, 6) est amené à être disposé dans une cuvette (7, 8, 9) dotée d'une surface d'extrémité ouverte, et en ce qu'une cuvette (7, 8, 9) pour chaque trou (3) dans le bloc anodique (2) est amenée à reposer devant le trou (3) en question. L'invention se rapporte également à une conception.
Note: Claims are shown in the official language in which they were submitted.
Note: Descriptions are shown in the official language in which they were submitted.
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Description | Date |
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Inactive: Recording certificate (Transfer) | 2023-07-20 |
Inactive: Single transfer | 2023-06-28 |
Common Representative Appointed | 2019-10-30 |
Common Representative Appointed | 2019-10-30 |
Change of Address or Method of Correspondence Request Received | 2018-01-10 |
Grant by Issuance | 2015-02-24 |
Inactive: Cover page published | 2015-02-23 |
Pre-grant | 2014-12-09 |
Inactive: Final fee received | 2014-12-09 |
Notice of Allowance is Issued | 2014-07-03 |
Letter Sent | 2014-07-03 |
Notice of Allowance is Issued | 2014-07-03 |
Inactive: Received pages at allowance | 2014-06-23 |
Inactive: Office letter - Examination Support | 2014-04-02 |
Inactive: Q2 passed | 2014-02-06 |
Inactive: Approved for allowance (AFA) | 2014-02-06 |
Amendment Received - Voluntary Amendment | 2013-12-24 |
Inactive: S.29 Rules - Examiner requisition | 2013-07-03 |
Inactive: S.30(2) Rules - Examiner requisition | 2013-07-03 |
Letter Sent | 2012-10-10 |
Request for Examination Requirements Determined Compliant | 2012-09-27 |
All Requirements for Examination Determined Compliant | 2012-09-27 |
Request for Examination Received | 2012-09-27 |
Letter Sent | 2010-06-14 |
Letter Sent | 2009-11-05 |
Inactive: Office letter | 2009-11-05 |
Inactive: Cover page published | 2009-09-23 |
Inactive: Correspondence - PCT | 2009-09-22 |
Inactive: Correspondence - Transfer | 2009-09-14 |
IInactive: Courtesy letter - PCT | 2009-09-11 |
Inactive: Notice - National entry - No RFE | 2009-09-11 |
Inactive: Single transfer | 2009-09-08 |
Inactive: Declaration of entitlement - PCT | 2009-09-08 |
Inactive: First IPC assigned | 2009-08-11 |
Application Received - PCT | 2009-08-11 |
National Entry Requirements Determined Compliant | 2009-06-11 |
Application Published (Open to Public Inspection) | 2008-06-19 |
There is no abandonment history.
The last payment was received on 2014-11-10
Note : If the full payment has not been received on or before the date indicated, a further fee may be required which may be one of the following
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Please refer to the CIPO
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Note: Records showing the ownership history in alphabetical order.
Current Owners on Record |
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KANTHAL AB |
Past Owners on Record |
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ORJAN DANIELSSON |
STEFAN SPRINGMANN |