Refrigeration – Storage of solidified or liquified gas – With vapor discharged from storage receptacle
Patent
1990-03-20
1991-05-28
Capossela, Ronald C.
Refrigeration
Storage of solidified or liquified gas
With vapor discharged from storage receptacle
62 492, 62 501, 62 505, F17C 704
Patent
active
050183583
ABSTRACT:
The present invention relates to an apparatus for delivery of pure gaseous and liquid forms of cryogen. The apparatus includes a pressure vessel for receiving a liquid form of the cryogen. A liquid-vapor interface is maintained within the pressure vessel by a liquid level detector and a cut-off valve connected to the level detector to vent the gaseous form of the cryogen to the atmosphere when the liquid form falls below a predetermined level. A heated overflow tube projects into the pressure vessel and is positioned at the predetermined level of the liquid. When the liquid rises above the predetermined level, it flowws into the overflow tube and is heated to vapor to add to the gaseous form of the cryogen within the pressure vessel. An outlet conduit is provided for delivering the gas and liquid forms of the cryogen from the pressure vessel. The conduit has a moveable end section located within the pressure vessel. When the movable end section is moved above the level of a liquid-vapor interface, the gas form of the material is delivered from the conduit; and when the moveable end section is positioned below the liquid-vapor interface, a pure liquid form of the cryogen is delivered from the pressure vessel. Movement of the moveable end section of the conduit is preferably controlled by a solenoid connected to a timing circuit.
REFERENCES:
patent: 4592205 (1986-06-01), Brodbeck et al.
patent: 4607489 (1986-08-01), Krongold
patent: 4873832 (1989-10-01), Porter
Kirschner Mark J.
Lee Ron C.
Capossela Ronald C.
Pearlman Robert I.
Rosenblum David M.
The BOC Group Inc.
LandOfFree
Cryogen delivery apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Cryogen delivery apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Cryogen delivery apparatus will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-27311