Concentric-ring single-sided dovetail groove ceramic tile back mold core and manufactured ceramic tile
US12269189B2 · kind B2 · utility
0Cited by
0References
8Claims
0Family size
Inventors
Key dates
| Filing date | Aug 11, 2021 |
| Grant date | Apr 8, 2025 |
| Priority date | — |
| Expiry date | Mar 24, 2042 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE04F13/142
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A concentric-ring single-sided dovetail groove ceramic tile back mold core is disclosed. A vulcanized rubber of back mold core surface comprises raised patterns and recessed patterns integrally formed, pasted and covered on a back mold core iron substrate. The raised patterns are equidistantly offset outwards layer by layer with a central position of the back mold core as a center; and a side of each raised pattern close to the center is of an equiangular obtuse angle, and a side of each raised pattern far away from the center is of an acute angle with an angular equal difference gradually decreasing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.