EP 1332041 A1 20030806 - METHOD AND DEVICE FOR COMPRESSING GRANULAR MATERIALS
Title (en)
METHOD AND DEVICE FOR COMPRESSING GRANULAR MATERIALS
Title (de)
VERFAHREN UND VORRICHTUNG ZUM VERDICHTEN VON KORNFÖRMIGEN STOFFEN
Title (fr)
PROCEDE ET DISPOSITIF DE COMPRESSION DE MATIERES GRANULEUSES
Publication
Application
Priority
- DE 0104191 W 20011110
- DE 10056063 A 20001111
- DE 10060860 A 20001206
- DE 0102266 W 20010619
Abstract (en)
[origin: WO0238365A1] The invention relates to a method and device for the compression of granular materials. On compressing granular material to give prepared products e.g. concrete paving slabs, a resonance vibrator with an oscillating mass-spring system is applied, which may be energised by a controllable energiser to produce forced oscillation of a given frequency and oscillatory amplitude. The resonant effect, making use of the proximity of the inherent resonance frequency and the exciter frequency permits a reduction in the size of the exciter force. According to the invention, along with an adjustment of the exciter frequency the resonant frequency is also simultaneously co-adjusted by means of a suitable adjuster, in order to be able to make use of the resonance effect throughout the whole spectrum of the exciter frequencies to be carried out.
IPC 1-7
IPC 8 full level
B06B 1/10 (2006.01); B28B 1/08 (2006.01); B28B 3/02 (2006.01); B30B 11/02 (2006.01)
CPC (source: EP US)
B06B 1/10 (2013.01 - EP US); B28B 1/08 (2013.01 - EP US); B28B 3/022 (2013.01 - EP US); B30B 11/022 (2013.01 - EP US)
Citation (search report)
See references of WO 0238365A1
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
WO 0238365 A1 20020516; CA 2428299 A1 20020516; EP 1332041 A1 20030806; US 2004070099 A1 20040415
DOCDB simple family (application)
DE 0104191 W 20011110; CA 2428299 A 20011110; EP 01993539 A 20011110; US 41655603 A 20031029