Process for sintering powder metal parts
CA 1114656 A · Owner: Union Carbide Corporation · Inventors: Kinneman, Thomas F.; Solomon, Jack
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In a process for sintering powder metal parts comprising: (a) passing the parts through a furnace adapted therefor from its upstream end to its downstream end said furnace, having two successive zones an upstream zone, which is maintained, at a temperature in the range of about 800°F to about 2200°F and a cooling zone, said furnace further having an atmosphere therein comprising carbon monoxide, hydrogen carbon monoxide, water and nitrogen distributed throughout the zones; (b) permitting the parts to reside in the upstream zone for a sufficient length of time to cause sintering; and (c) removing sintered parts from the furnace the improvement comprising:, introducing a mixture consisting …
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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 December 22, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 22, 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.