Machine with direct drive

Details Machine with direct drive Machine with direct drive

2011-04-19

2011-04-19

Hanh, Nguyen N (Department: 2834)

Electrical generator or motor structure

Dynamoelectric

Linear

Reexamination Certificate

active

07928613

ABSTRACT:
A machine includes a moving part and a direct drive for moving the moving part. The direct drive includes a stator and an armature unit which interacts with the stator. A coupling device couples the armature unit to the moving part to allow a movement of the moving part in relation to the armature unit. The direct drive further includes a spacer device to maintain a distance between an active region of the stator and an active region of the armature unit, thereby defining the air gap between the stator and the armature unit.

REFERENCES:
patent: 4594520 (1986-06-01), Miwa et al.
patent: 5203432 (1993-04-01), Grinaski
patent: 5297658 (1994-03-01), Grinaski et al.
patent: 5751076 (1998-05-01), Zhou
patent: 28 22 993 (1979-11-01), None
patent: 93 06 975 (1994-06-01), None
patent: 10 2006 010 198 (2007-09-01), None
patent: WO 2004/068678 (2004-08-01), None

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