Water cooled transport roller for a roller-hearth kiln
CA 2409024 A1 · Owner: Winkels-Herding, Thomas · Inventors: Piduch, Hans-Gunter; Radusch, Gerhard; Pawlak, Wolfram
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 water cooled transport roller for a roller-hearth kiln, comprising a cylindrical base body (1) a thermal insulation (2) on the , outer periphery of the base body and a cooling water conduit (3) placed in a central position in the base body. The cooling water can be fed through the conduit (3) at an end of the base body which is rotationally arranged; it then passes through the conduit and flows back through an annular chamber (4) located between the conduit and the base body after a change in direction on the exit side of the conduit. A shaft (5) which is fixed to the base body exhibits a cavity for receiving the water input end of the conduit a central , …
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 May 15, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 15, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 15, 2023.
- 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.