Patent ID: 6679283
Filing Date: 2004-01-20
Classification: F16K,Y10T

Abstract:
A valve inspection chamber, comprising:a housing having a first horizontal flow opening, a second horizontal flow opening, and a vertical inspection and valve retrieval opening; a valve cassette including a frame and a valve member movable relative to the frame between an open position and a closed position when the valve cassette is positioned in situ within the housing; a valve cassette receptacle positioned in the housing in a flow path of one of the first horizontal flow opening and the second horizontal flow opening and aligned with the vertical inspection and valve retrieval opening, such that at least a portion of the valve cassette can be slidably inserted in and retrieved from along a surface of the valve cassette receptacle and through the vertical inspection and retrieval opening; means for maintaining the valve cassette in engagement with the valve cassette receptacle until a preset vertical force is exerted; and means for engaging a retrieval tool positioned on one of the frame and the valve member of the valve cassette for removal of the frame and the valve member as a single unit through the vertical inspection and retrieval opening.