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Publication numberUST976001 I4
Publication typeGrant
Application numberUS 05/856,831
Publication dateNov 7, 1978
Filing dateDec 2, 1977
Priority dateDec 27, 1976
Publication number05856831, 856831, US T976001 I4, US T976001I4, US-I4-T976001, UST976001 I4, UST976001I4
InventorsThomas W. Schuck
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Liquid cryogen transfer system
US T976001 I4
Abstract
a system and method are provided for transferring a liquid cryogen from a supply tank to a receiver tank by pressurizing the supply tank with cold vapor from the receiver tank. This method minimizes heat added to the transferred liquid and minimizes the temperature of the vapor returned to the supply tank, making it particularly useful for optimizing the transfer of liquid cryogens such as helium, hydrogen, nitrogen and oxygen which vaporize well below ambient temperatures. A cold vapor pump is provided which is insulated from ambient temperatures for pumping the cryogen vapor from the receiver tank to the supply tank with a minimum of heat input.
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Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US5501080 *Dec 14, 1994Mar 26, 1996Lockheed Idaho Technologies CompanySelf-contained cryogenic gas sampling apparatus and method
US6923007 *Oct 16, 2003Aug 2, 2005Daniel D. HoltSystem and method of pumping liquified gas
US20080047629 *Aug 24, 2006Feb 28, 2008Barry Lyn HoltzmanManually driven transfer pump for liquefied gases
Classifications
U.S. Classification62/50.6, 141/60, 417/901, 137/210
International ClassificationF17C9/00
Cooperative ClassificationY10T137/313, Y10S417/901, F17C2205/0134, F17C2221/012, F17C2227/0135, F17C2221/011, F17C2225/0161, F17C2221/017, F17C2223/0161, F17C2221/014, F17C2260/031, F17C9/00, Y02E60/321
European ClassificationF17C9/00