Electrolytically deburring laminated cores under relative motion of workpiece
CA 1256056 A · Owner: Westinghouse Electric Corporation · Inventors: Fromson, Robert E.; Scheda, Francis A.; Nunamaker, Charles S.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An apparatus and means for removing slivers and burrs from machined laminated components utilizes a salt solution, such as sodium nitrate, as the electrolyte which flows between a cathode and the laminated member which is connected to the positive terminal of an electrical power supply. The electrolyte is pumped into the gap which is described between the cathode and laminated component and an electrical current flows between the laminated member and the cathode, removing metal which is deplated or released into the stream of electrolyte. The use of a salt solution, as opposed to an acidic solution for the, electrolyte fluid reduces the need for cleaning and neutralizing the acid remaining …
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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 June 20, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 20, 2006.
- 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.