Baking pit furnaces
CA 1051639 A · Owner: Refractory Services International Limited · Inventors: Black, William B.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to baking pit furnaces and more especially to the flues of such furnaces and is, characterised in that the flues are cast in several interrelated parts in refractory concrete and are assembled from the cast parts. The concrete parts are preferably compacted by inducing small vibrations at high frequency to parts of the moulds in which they are cast. Moreover flues assembled from the cast parts preferably include baffles extending between the side walls thereof midway of their lengths, and means tying said side walls together over each length thereof defined between the control baffle and each of the two end walls of the flue. The central baffles may be rooted …
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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 April 3, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 3, 1996.
- 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.