Furnace for heat treatment in vacuo with cooling by a stream of gas
CA 1290940 C · Owner: Fours Industriels B.M.I. (Baudasse-Martin-Industries) · Inventors: Jomain, Bernard
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention relates to a furnace for heat treatment in vacuo with cooling by a stream of gas wherein, between the turbine and the heating enclosure, there is a rotating volute in the form of a helical flange arranged on the outside of a hollow cylinder. At one end, said cylinder comprises a cut out so that its remaining part extends by two outwardly directed partitions, constituting a radial channel for recovery, communicating with the interior of the cylinder. A window is formed by a deflector issuing from the original edge of the helicoidal flange of the volute.
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 22, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 22, 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.