Thread supplying device

Details Thread supplying device Thread supplying device

2006-06-13

2006-06-13

Matecki, Kathy (Department: 3654)

Winding, tensioning, or guiding

Unidirectional winding and unwinding

Variable number of windings on support

C242S365600, C242S364400, C310S156010

Reexamination Certificate

active

07059556

ABSTRACT:
A thread supplying device provided with a housing containing an electric motor wherein the stator is non-rotatingly mounted and the rotor is rotatingly mounted on a motor shaft. A thread guiding element is fixed to the motor shaft and a threader device which is fixed to the housing is also provided. When the motor shaft is in a set rotational position, the thread guiding element is physically associated with said threader device. A permanent magnet motor with pole cores provided with windings is integrated into the stator and permanent magnets are integrated into the rotor in such a way that the stator, rotor and the thread guiding element are arranged relative to the housing, in such a way that the motor shaft adopts the set position of rotation when the permanent magnet motor is devoid of electric current in a stable relative position of rotation, caused by magnetic forces, of the rotor in the stator.

REFERENCES:
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patent: 4936356 (1990-06-01), Ghiardo
patent: 5181544 (1993-01-01), Deiuri
patent: 5351724 (1994-10-01), Zenoni et al.
patent: 5794867 (1998-08-01), Hermanns et al.
patent: 6062501 (2000-05-01), Halvarsson
patent: 6691942 (2004-02-01), Josefsson et al.
patent: 6726139 (2004-04-01), Persson
patent: 43 36 312 (1995-04-01), None
patent: 1 050 611 (2000-11-01), None
patent: 2 523 162 (1983-09-01), None
patent: WO 2004038907 (2004-05-01), None

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