Device for heating flowable materials and corresponding production method
CA 2343380 A1 · Owner: Spath, Michael · Inventors: Spath, Michael
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a device for heating flowable materials comprising a , container (1) or pipe for receiving or conducting the material that is to be heated and a heatable heat transfer element disposed in the container or pipe said element consisting of steel wool, metal cuttings or expanded metal. The heat transfer element in said device exhibits little flow resistance and rapidly transmits heat to the flowing medium due to the its large surface. According to the method, a band (2) of expanded metal is wound on a heating element (4).
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
- Filed August 9, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 9, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 9, 2021.
- 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.