Equipment and process for producing ceramic tubes
CA 2219465 A1 · Owner: Societe Des Ceramiques Techniques · Inventors: Henneguez, Philippe; Martreuil, Martial
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Equipment for manufacturing ceramic tubes via isostatic pressing using the dry-bag method comprises a main cylinder (1) an elastomer sheath (2), a mould (50) mounted coaxially inside the sheath and comprising a central cylindrical cavity (6) two metal bands (90.100) attached to the upper and lower parts of the pot respectively to keep the mould and sheath in place at least one punch (120) that is mobile in relation to the mould and works with one of the two bands one rod (13) that is mobile in relation to the mould and the punch. At least one extremity of the mould had a concave conical surface (52) on the exact same axis as the mould extending as far as the mould's cylindrical cavity and …
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 November 17, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 17, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 17, 2019.
- 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.