Pasty gasket for producing a leakproof seal between surfaces which are subjected to heat and which have to be joined
CA 1282910 C · Owner: Daussan, Andre · Inventors: Daussan, Jean-Charles; Daussan, Gerard; Daussan, Andre
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Pasty gasket for producing a leakproof seal between surfaces which are subjected to heat and which have to be joined", The pasty gasket (5) is placed in particular on the upper edge (6) of a metallurgical container (1) in order to produce a leakproof seal with the cover (4) of the latter. The gasket (5) is constituted by a mixture containing from 0.5 to 20 % by weight of plasticizing substances containing in particular clay and/or bentonite 80 to 99.5 % by weight of organic particles such as paper and/or inorganic particles such as carbon carbide, borides, nitrides, silicides and sulfides alone or in, combination, and/or anhydrous and/or hydrated refractory oxides such as silica, alumina, …
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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 16, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 16, 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.