Probe position actuator with an elongated stroke

Details Probe position actuator with an elongated stroke Probe position actuator with an elongated stroke

1999-06-16

2000-12-19

Ramirez, Nestor

Electrical generator or motor structure

Dynamoelectric

Linear

H02K 4100

Patent

active

06163090&

ABSTRACT:
A linear actuator includes a stationary stator and an external armature moving with a coil moving within a magnetic structure. A linear bearing including a stationary track fastened to the stator and a moving track fastened to the armature extends on each side of the magnetic structure. In each linear bearing, balls rotate between the stationary and moving tracks with movement of the armature. During the process of manufacturing the linear actuator, the moving track of each linear bearing is loosely mounted to the armature, a pre-load force is applied to the moving track using a tool fastened to the armature, and the moving track is clamped in place so that the pre-load force is subsequently maintained.

REFERENCES:
patent: 3003827 (1961-10-01), Hentschke
patent: 4864170 (1989-09-01), Eguchi
patent: 5134670 (1992-07-01), Kamimura
patent: 5153472 (1992-10-01), Karidis et al.
patent: 5180955 (1993-01-01), Karidis et al.
patent: 5229669 (1993-07-01), Takei
patent: 5553946 (1996-09-01), Agari
patent: 5626276 (1997-05-01), Lo et al.
patent: 5635849 (1997-06-01), Lo et al.
patent: 5763965 (1998-06-01), Bader
patent: 5775567 (1998-07-01), Lo et al.

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