Refrigeration – Storage of solidified or liquified gas
Reexamination Certificate
2007-12-03
2009-06-16
Doerrler, William C (Department: 3744)
Refrigeration
Storage of solidified or liquified gas
C062S050700, C141S004000
Reexamination Certificate
active
07546744
ABSTRACT:
A storage tank defines a cryogen space for storing a cryogenic liquid. The storage tank comprises a combined fill and vent assembly, which comprises a conduit having a first end with an opening disposed within an upper part of the cryogen space, and a second end outside of the cryogen space that is connected to a receptacle, to which a re-filling nozzle can be attached. A check valve disposed in the conduit allows flow only in the direction of filling the cryogen space with cryogenic liquid from the receptacle. A by-pass line is provided around the check valve with a valve disposed in the by-pass line that is operable to open or close to control flow through the by-pass line. The method comprises attaching a re-filling nozzle to the receptacle and opening the by-pass valve to vent vapor from the cryogen space to reduce vapor pressure therein and to cool the conduit, receptacle, re-filling nozzle, and fill line. After venting the storage tank, the by-pass valve is closed, and the storage tank can be re-filled through the receptacle and conduit.
REFERENCES:
patent: 2993344 (1961-07-01), Reed
patent: 3347286 (1967-10-01), Smith
patent: 3366139 (1968-01-01), Shaw
patent: 3812888 (1974-05-01), Dalton
patent: 4018582 (1977-04-01), Hinds et al.
patent: 4149388 (1979-04-01), Schneider et al.
patent: 4350017 (1982-09-01), Kneip et al.
patent: 4956975 (1990-09-01), Gustafson
patent: 5121609 (1992-06-01), Cieslukowski
patent: 5249425 (1993-10-01), Longsworth
patent: 5370159 (1994-12-01), Price
patent: 5421160 (1995-06-01), Gustafson et al.
patent: 5572874 (1996-11-01), Rathbone
patent: 5699839 (1997-12-01), Dehne
patent: 5829791 (1998-11-01), Kotsubo et al.
patent: 6073450 (2000-06-01), Lak et al.
patent: 2003/0070434 (2003-04-01), Shimada et al.
patent: 1457733 (2004-09-01), None
patent: 2002-068398 (2002-08-01), None
Harper Gregory
Mark Randall
Doerrler William C
McAndrews Held & Malloy Ltd.
Westport Power Inc.
LandOfFree
Storage tank for a cryogenic liquid and method of re-filling... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Storage tank for a cryogenic liquid and method of re-filling..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Storage tank for a cryogenic liquid and method of re-filling... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4095746