Contamination and flow control

Fluid handling – With cleaner – lubrication added to fluid or liquid sealing... – Cleaning or steam sterilizing

Reexamination Certificate

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Details

C251S214000, C251S325000

Reexamination Certificate

active

07891372

ABSTRACT:
The present invention is directed toward an anti-contamination arrangement for a valve having a valve housing, a bushing positioned in the valve housing, a valve member including a valve shaft and a valving portion operable for engaging a valve seat, slidably disposed through the bushing, and a supply port operably associated with the valve member. The valve also includes a control chamber controlled by the valving portion, and a valve seat positioned between the supply port and the control chamber. The valve member is operably associated with the valve seat for controlling the flow of fluid from the supply port to the control chamber upon the movement of the valve member in relation to the valve seat. There is also an anti-contamination arrangement positioned between the bushing and the valve shaft for collecting and removing contamination from the valve member.

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