The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 23, 1989
Filed:
Aug. 05, 1987
Kimiteru Sato, Kitakyushu, JP;
Haruyuki Ito, Kitakyushu, JP;
Toto Ltd., Kitakyushu, JP;
Abstract
A process for casting slip into a ceramic product using at least one unique casting mold. The casting mold is formed of a plurality of separate porous mold parts, each of which has a fluid-tight outer face, an inner molding surface and a plurality of channels therein. The mold parts are combined so that the inner molding surfaces define a molding cavity in the mold. The casting mold is positioned within a pressure container such that a space is established surrounding the casting mold within the pressure container. This space is in fluid communication with the molding cavity of the mold. The casting process further includes the steps of: sealing the pressure container; firmly clamping the casting mold; feeding slip under a first pressure into the molding cavity until the molding cavity is filled with slip; supplying a fluid under a second pressure higher than the first pressure into the space surrounding the casting mold thereby applying the second pressure to the slip in the molding cavity and to the inner molding surfaces of the mold parts to form a cast layer of a predetermined thickness within the molding cavity; depressurizing the channels to drain water accumulated therein; discharging residual slip from the molding cavity; and removing the casting mold from the pressure container.