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US 4,374,688 AGranted
Marbleized ceramic articles
OwnerAndrew Quientinventor
Life of this patent
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Abstract
Ceramic articles with a marbleized pattern are produced on a potter's wheel from an incompletely mixed combination of a plurality of plastic compositions of contrasting pigmentation. The incompletely mixed combination is molded to obtain a multifaceted or fluted surface which is cut during rotation to trim away the facets or flutes, producing an article with an annular cross section and the required marbleized pattern.
Claims2
A method of producing ceramic articles with at least one surface having a pattern of sectioned striae, said method including in combination:
- a. mixing to incomplete homogeneity a plurality of plastic ceramic masses of contrasting pigmentation to a composite mass,
- b. forming the composite mass between a multi-faceted or fluted die which is rotated and a contour-forming template which is stationary,
- c. hardening and cutting the hardened composite mass to remove the facets or fluting, and
- d. firing to maturation of the cut composite ceramic mass.
1 more element
Dependencies are inferred from the claim text.