Anisotropic cordierite monolith
CA 1059159 A · Owner: Corning Glass Works · Inventors: Lachman, Irwin M.; Lewis, Ronald M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure An extruded, honeycombed monolithic fired ceramic whose primary crystal phase is cordierite, which contains less than by weight, 0.1% CaO and 0.4% Na2O plus K2O and whose micro-, structure is characterized by a greater than random orientation of the anisotropic cordierite crystallites with their low expansion direction aligned substantially parallel to the plane of the webs of the monolith. The axial expansion coefficient of the honeycomb, with composition near that of stoichiometric cordierite, may be as low as 5.5 x 10-7in./in./°C. or lower in the range of 25°-1000°C. The product is particularly adapted to use as a catalytic support matrix for emissions control.
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
- Granted July 24, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 24, 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.