Method and plant for forming large-dimension ceramic slabs...

Plastic article or earthenware shaping or treating: apparatus – Air felting type shaping means

Reexamination Certificate

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Details

C425S371000, C425S355000, C425S36400B

Reexamination Certificate

active

10686279

ABSTRACT:
The apparatus for forming large dimension ceramic tiles includes at least one first pressing unit (2) connected to at least one second pressing unit (4) by a conveying system (3) with which there may be associated at least one decorating unit for surface-finishing the blank formed by the at least one first forming unit, the at least one second pressing unit including two mutually movable superposed dies (7, 6), the lower of which is fixed and is positioned at the level of the conveying system, and the upper of which is movable in level between a raised position in which it awaits the arrival of the blank, and a lowered position in which it compacts the blank.

REFERENCES:
patent: 3671618 (1972-06-01), Huber et al.
patent: 4158533 (1979-06-01), Longinotti
patent: 5776511 (1998-07-01), Miki et al.
patent: 6027675 (2000-02-01), Cassani
patent: 6800229 (2004-10-01), Acerbi et al.
patent: RE97A000057 (1997-08-01), None
patent: RE97A000058 (1997-08-01), None
patent: RE99A000061 (1999-05-01), None
patent: WO 96 15888 (1996-05-01), None
patent: WO 98 23424 (1998-06-01), None

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