Fluid handling – With liquid valves or liquid trap seals – Liquid valves
Reexamination Certificate
2006-07-18
2006-07-18
Rivell, John (Department: 3753)
Fluid handling
With liquid valves or liquid trap seals
Liquid valves
C128S201230, C128S204180, C128S205240
Reexamination Certificate
active
07077154
ABSTRACT:
Apparatus for effecting bubble CPAP. The apparatus includes a hollow vessel holding a liquid, a cap, and a positionable tube assembly. The positionable tube assembly comprises a guide tube and a positionable tube. The positionable tube is arranged to have a gas introduced through it and is located within the guide tube. The positionable tube is arranged to be slid to various discrete longitudinal positions with respect to the guide tube and to be held in any one of those discrete positions against accidental displacement so that the lower free end of the positionable tube is held at a desired position below the surface of the liquid.
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DeMichiel Louis S.
Jacobs Harris C.
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