Actuator

Details Actuator Actuator

1997-05-07

1999-06-29

Underwood, Donald W.

Material or article handling

Load carried along a horizontal linear path

Carried via magnetic floating

1984689, 1988603, B65G 2504

Patent

active

059159162

ABSTRACT:
An actuator includes: a housing having a slit in the outer surface in such a manner that the slit is elongated in the direction of axis, and a conveying member which is supported by a linear guide device in such a manner that the conveying member is movable axially, and is moved back and forth by a moving device along the slit, the conveying member having a portion which is protruded from the housing through the slit, and engaging with a movable loop made up of a seal belt which is laid over pulleys in such a manner that the seal belt is movable in the direction of axis while sealingly closing the slit. In the actuator, an auxiliary space communicated with outside is provided along a main space in the housing, and the main space and the auxiliary space are communicated through exhaust valves with each other which are provided at both ends of the main space and allow air to flow, in one direction, to the auxiliary space. Hence, the actuator is a non-suction type clean actuator.

REFERENCES:
patent: 4044886 (1977-08-01), Sender
patent: 4818169 (1989-04-01), Schram

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