EP 0415184 A3 19910731 - METHOD AND DEVICE FOR THE CONTINUOUS PRODUCTION OF MOULDED ELEMENTS FROM INORGANICALLY BONDED MATERIALS
Title (en)
METHOD AND DEVICE FOR THE CONTINUOUS PRODUCTION OF MOULDED ELEMENTS FROM INORGANICALLY BONDED MATERIALS
Publication
Application
Priority
DE 3928626 A 19890830
Abstract (en)
[origin: US5135693A] The present invention is directed to improvements in apparatus and processes for the continuous production of inorganically bonded materials, the apparatus and process providing a pressureless transition zone without the action of pressure on a continuous sheet of material arranged between a high-pressure compression unit and the calibrating unit, and where the calibrating unit is immediately preceded by a recompression unit, which applies an active pressure on the continuous sheet of material after it passes through the pressureless zone and before it enters the calibrating unit and where this active pressure is sufficiently high that the nominal thickness of the continuous sheet of material is equal to or less than the finished continuous sheet of material and nominal density of the continuous sheet of material are equal to or greater than the density of the finished continuous sheet of material.
IPC 1-7
IPC 8 full level
B28B 1/52 (2006.01); B28B 5/02 (2006.01); B30B 11/00 (2006.01)
CPC (source: EP US)
B28B 1/526 (2013.01 - EP US); B28B 5/027 (2013.01 - EP US); B30B 11/00 (2013.01 - EP US)
Citation (search report)
- [X] US 3521552 A 19700721 - KNAPP HANS JOHN
- [Y] DE 3539364 A1 19870514 - FRAUNHOFER GES FORSCHUNG [DE]
- [YD] DE 3441839 A1 19860220 - FRAUNHOFER GES FORSCHUNG [DE]
- [Y] WO 8903288 A1 19890420 - KUESTERS EDUARD MASCHF [DE]
- [Y] US 2909804 A 19591027 - MEANS PERRY G
- [Y] US 2303087 A 19421124 - NELLER RICHARD K
- [A] DE 3206558 A1 19830901 - SANTRADE LTD [CH]
- [A] DE 2722356 A1 19781123 - BAEHRE & GRETEN
- [A] DE 2130932 A1 19730530 - BAEHRE & GRETEN
- [A] DE 3107589 A1 19821007 - BAEHRE & GRETEN [DE]
Designated contracting state (EPC)
AT BE CH DE DK ES FR GB GR IT LI LU NL SE
DOCDB simple family (publication)
US 5135693 A 19920804; AT E91660 T1 19930815; CA 2023947 A1 19910301; CA 2023947 C 19940412; DE 3928626 C1 19910124; DE 59002018 D1 19930826; EP 0415184 A2 19910306; EP 0415184 A3 19910731; EP 0415184 B1 19930721
DOCDB simple family (application)
US 57124590 A 19900822; AT 90115654 T 19900816; CA 2023947 A 19900824; DE 3928626 A 19890830; DE 59002018 T 19900816; EP 90115654 A 19900816