Title:
VIBRATOR TUBE
Document Type and Number:
WIPO Patent Application WO2006099979
Kind Code:
A8
Abstract:
An electromagnetic vibrator for use in a portable communication device (90) comprising a housing (20,30,40,50,60,70,80) comprising a track directed in a first dimension, a coiling (22,82) comprising at least one coil turn, oriented in a second dimension essentially perpendicular to the first dimension, coiled around the track and being arranged to receive an electric voltage, a permanent magnet assembly (26,32,34,42,52,62,72,84) arranged for motion along the track to which said permanent magnet assembly is tightly fitted, and a ferrofluid mixture placed between the track and the permanent magnet assembly (26,32,34,42,52,62,72,84), allowing motion of the permanent magnet assembly (26,32,34,42,52,62,72,84) in the first dimension in dependence of the electric voltage as supplied to the coiling (22,82).
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Inventors:
ERIXON MATS (SE)
WOLF MATS (SE)
HELLSTROEM STEFAN (SE)
WOLF MATS (SE)
HELLSTROEM STEFAN (SE)
Application Number:
PCT/EP2006/002364
Publication Date:
January 31, 2008
Filing Date:
March 15, 2006
Export Citation:
Assignee:
SONY ERICSSON MOBILE COMM AB (SE)
ERIXON MATS (SE)
WOLF MATS (SE)
HELLSTROEM STEFAN (SE)
ERIXON MATS (SE)
WOLF MATS (SE)
HELLSTROEM STEFAN (SE)
International Classes:
H02K33/16
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