| (19) |
 |
|
(11) |
EP 0 620 089 A3 |
| (12) |
EUROPEAN PATENT APPLICATION |
| (88) |
Date of publication A3: |
|
15.03.1995 Bulletin 1995/11 |
| (43) |
Date of publication A2: |
|
19.10.1994 Bulletin 1994/42 |
| (22) |
Date of filing: 11.03.1994 |
|
|
| (84) |
Designated Contracting States: |
|
AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE |
| (30) |
Priority: |
17.03.1993 IT MO930028
21.05.1993 IT MO930068
29.09.1993 IT MO930123
15.12.1993 IT MO930159
|
| (60) |
Divisional application: |
|
96200762.1 |
| (71) |
Applicant: Algeri, Maris |
|
I-42010 Roteglia di Castellarano (Reggio Emilia) (IT) |
|
| (72) |
Inventors: |
|
- Algeri, Maris
I-4210 Roteglia di Castellarano (R.E.) (IT)
- Annovi, Nunzio
I-42010 Salvaterra di Casalgrande(R.E.) (IT)
|
| (74) |
Representative: Gardi, Giuliano |
|
Gardipatent
Palazzo Prora
Via Giardini, 605
I-41100 Modena
I-41100 Modena (IT) |
|
| |
|
| (54) |
Isostatic die, particularly for ceramic tiles and relative method |
(57) The isostatic die for pressing items, in particular ceramic tiles, makes for greater
uniformity of pressing by compensating for differences of density occurring when loading
the matrix with the powders to be pressed ; said die consists of an elastic membrane
(5), delimiting externally a cavity in the punch or in the matrix, the membrane being
connected to elements (1 ; 3; 18; 103a; 111 ; 128; 129; 208 ; 316) for controlling
deformation, among which is a plate (18; 111) attached in a predetermined way to the
membrane (5) and/or to the cavity of the matrix and/or of the punch; its use is foreseen
in establishments for the manufacture of ceramic items.