Patent ID: 7263758

Claim:
An improved sanitaryware casting method, comprising the steps of: providing at least one shell mold selected from a plurality of shell molds, each said shell mold having a casting space for casting a unique sanitaryware shell configuration thereby, said shell having a hollow housing space for disposition of a unique sanitaryware performance engine configuration therewithin; providing at least one engine mold selected from a plurality of engine molds, each said engine mold having a casting space for a unique performance engine configuration thereby; providing at least one rim mold selected from a plurality of rim molds, each said rim mold having a casting space for casting a unique sanitaryware rim configuration thereby; separately casting said shell, engine and rim in said selected configurations; disposing said engine in said shell housing space to form at least one shell and engine assembly; and assembling said rim with said shell and engine assembly to form at least one shell, engine and rim assembly such that, upon firing, said shell, engine and rim assembly forms a single integral piece of sanitaryware therefrom, wherein any said selected configuration of said shell, said engine or said rim is interchangeable with at least one of any non-selected configuration of said shell, said engine or said rim to produce a plurality of said shell, engine and rim assemblies therefrom.