Actuator

Details Actuator Actuator

2006-09-26

2006-09-26

Jacyna, J. Casimer (Department: 3751)

Valves and valve actuation

With actuation lubricating means

C137S015170

Reexamination Certificate

active

07111823

ABSTRACT:
An actuator having a set of slidable pistons including sliding regions with the sliding regions including at least one wear member supported by a resilient member and a second wear member laterally spaced from the first wear member with a lubrication reservoir located therebetween for maintaining the wear members in lubricated sliding engagement with the cylindrical walls of the housing to limit the need to replace or repair the actuator. In order to provide ingress and egress of fluid from the chambers within the actuator a channel passage extends along the back side of the extension of the piston to permit quick venting of fluid therefrom.

REFERENCES:
patent: 680465 (1901-08-01), Reynolds
patent: 3785253 (1974-01-01), Sandau
patent: 3994604 (1976-11-01), Visser
patent: 4214796 (1980-07-01), Monzel et al.
patent: 4895037 (1990-01-01), Komatsu
patent: 6173965 (2001-01-01), Niessen
patent: 1509067 (1968-01-01), None

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