Refrigeration – Storage of solidified or liquified gas – With conservation of cryogen by reduction of vapor to liquid...
Reexamination Certificate
2006-02-22
2009-02-03
Doerrler, William C (Department: 3744)
Refrigeration
Storage of solidified or liquified gas
With conservation of cryogen by reduction of vapor to liquid...
C137S571000, C137S565230
Reexamination Certificate
active
07484370
ABSTRACT:
A refrigerant gas recycling apparatus for cryogenic cooling device has a first gas storage unit for temporarily storing refrigerant gas discharged from the cryogenic cooling device, a compressor for compressing refrigerant gas stored in the first storage unit, and a second gas storage unit for storing therein refrigerant gas compressed by the compressor and selectively re-supplying compressed refrigerant gas to the cryogenic cooling device using a pressure difference between compressed refrigerant gas and inside of the cooling device. Refrigerant gas discharged from the cryogenic cooling device is compressed and stored in reduced volume, and stored refrigerant gas is re-supplied to the cryogenic cooling device without a separate driving source.
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Kim Yeong-Chun
Kwon Woon-Sik
Moon Tae-Sun
Park Heui-Joo
Dickstein & Shapiro LLP
Doerrler William C
Doosan Heavy Industries & Construction Co., Ltd.
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