EP 0379254 A3 19910227 - ELECTROMAGNETIC VIBRATOR APPARATUS WITH ADJUSTABLE ELASTIC REACTION
Title (en)
ELECTROMAGNETIC VIBRATOR APPARATUS WITH ADJUSTABLE ELASTIC REACTION
Publication
Application
Priority
IT 1911789 A 19890118
Abstract (en)
[origin: EP0379254A2] Electromagnetic vibrator apparatus, comprising a base (1) capable of being connected to an object to be set in vibration, an electromagnetic armature (3) integral with the base (1) and an electromagnet (4) facing the armature, and connected to the base by an elastic means (6), in which the elastic means connecting the base to the electromagnet is of constant stiffness, while between the electromagnet (4) and the base (1) there is interposed at least one adjusting unit (12), comprising elastic means (14) with adjustable prestress.
IPC 1-7
IPC 8 full level
B06B 1/04 (2006.01)
CPC (source: EP)
B06B 1/045 (2013.01)
Citation (search report)
- [X] US 2180189 A 19391114 - ALVORD GROVE D
- [A] US 2694156 A 19541109 - SAM CERMINARA
- [A] DE 1497775 A1 19691016 - LICENTIA GMBH
- [A] DE 1081180 B 19600505 - SIEMENS ELEKTROGERAETE GMBH
- [A] FR 2069438 A5 19710903 - TRANSFORMATOREN UNION AG
Designated contracting state (EPC)
DE ES FR IT NL
DOCDB simple family (publication)
EP 0379254 A2 19900725; EP 0379254 A3 19910227; IT 1228480 B 19910619; IT 8919117 A0 19890118
DOCDB simple family (application)
EP 90200094 A 19900115; IT 1911789 A 19890118