Checking of electrodes with activating layers
CA 1290396 C · Owner: Kotowski, Stephan · Inventors: Donnerhak, Bernd; Kotowski, Stephan; Busse, Bernd
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a method for the visual inspection of a flat electrode and, in particular an anode, having an activating layer, which may be employed in electrolytic installations for the galvanic zincing of sheet steel. The electrode to be tested is placed between the anode and cathode of a sodium sulphate cell, with the surface to be tested facing the cathode. An appropriate voltage is applied and the development of gas bubbles which occur on the activating layer of the test-anode is recorded with a camera.
Read the whole patent
Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted October 8, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 8, 2008.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.