Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Franck Truelle1
Patrice Ragot1
Patrick Calero1
Patrick Chevalier1
Arnaud Biramben1
Christian Marty1
Isabelle Valente1
Jean-Christophe Husson1
...
Date of Patent
January 15, 2008
1Patent Application Number
111270921
Date Filed
May 12, 2005
1Patent Primary Examiner
Patent abstract
A method of manufacture of a multilayer ceramic shell mould out of a master pattern includes the steps of dipping the master pattern in a first slip containing ceramic particles and a binder, depositing sand particles to form a contact layer, dipping the master pattern in a second slip containing ceramic particles and a binder, depositing sand particles to form an intermediate layer, dipping the master pattern in at least a third slip containing ceramic particles to form a reinforcing layer. The ceramic particles of the slips includes mullite, alumina, or a mixture of the two, whereas no layer contains any zircon.
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