Invention Grant
- Patent Title: Durable earthenware engraving process
- Patent Title (中): 耐用陶器雕刻工艺
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Application No.: US14155242Application Date: 2014-01-14
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Publication No.: US09409312B2Publication Date: 2016-08-09
- Inventor: Geoffrey Gretton
- Applicant: Geoffrey Gretton
- Agency: Tracy Jong Law Firm
- Agent Tracy P. Jong; Cheng Ning Jong
- Main IPC: B28B7/34
- IPC: B28B7/34 ; B28B7/00 ; B28B11/00

Abstract:
A method of forming a detailed image on a surface of an earthenware item is disclosed. The method comprises: (a) processing a digital image to produce an output image; (b) etching a burnable material to create peaks, valleys and indents corresponding to the output image to form a mold; (c) casting a flexible template against the mold to obtain a mirror image of the output image in the flexible template; (d) casting a surface of the earthenware in an unsintered state against the flexible template to record the output image by peaks and valleys in the surface of the earthenware item; (e) bisque firing the earthenware item in the unsintered state to render the output image permanent; and (f) applying stain to the surface of the bisque fired earthenware item and removing excess stain from of the surface of the earthenware item.
Public/Granted literature
- US20140197577A1 DURABLE EARTHENWARE ENGRAVING PROCESS Public/Granted day:2014-07-17
Information query