Actuator

Details Actuator Actuator

2006-06-27

2006-06-27

Hannon, Thomas R. (Department: 3682)

Bearings

Linear bearing

Combined with seal or guard

C074S089400, C277S410000, C384S446000

Reexamination Certificate

active

07066649

ABSTRACT:
In an actuator, displacement resistance in axial movement of a slider is reduced to improve durability and enhance maintainability. At each side of the actuator, a slit is made between a top cover and a side cover. Magnetic bodies are provided on the surfaces of both side walls of the slit which face a fixing block of a slider and a magnetic fluid with a viscosity, surface tension, etc. is held between the magnetic bodies. At each side, the fixing block of the slider axially moves along the slit which is closed by the magnetic bodies.

REFERENCES:
patent: 4057258 (1977-11-01), Ernst et al.
patent: 4481869 (1984-11-01), Garlapaty
patent: 4953424 (1990-09-01), Lazzari
patent: 6200030 (2001-03-01), Katoh
patent: 6241230 (2001-06-01), Kawaguchi
patent: 6344718 (2002-02-01), Nagai et al.
patent: 6626571 (2003-09-01), Kato et al.
patent: 09-201002 (1997-07-01), None
patent: H9-201002 (1997-07-01), None

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