Arc control in plasma arc reactors
CA 1112303 A · Owner: Bethlehem Steel Corporation · Inventors: Macrae, Donald R.; Gold, Richard G.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure A process for controlling the arc in plasma arc reactors having two electrodes in which reactor the reaction charge form a reaction layer covering one of the electrodes and is a point of arc attachment. The reaction layer is characterized as non-conductive for a period of time causing; an arc struck between the uncovered electrode and the reaction layer to short-circuit. An electrically conductive material is added to the reaction layer stabilizing the arc. Substantially pure molybdenum is prepared from molybdenum disulfide. -1-
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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 November 10, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 10, 1998.
- 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.