System and method for melting ice in an exhaust tube of a...

Details System and method for melting ice in an exhaust tube of a... System and method for melting ice in an exhaust tube of a...

2006-04-04

2006-04-04

Campbell, Thor S. (Department: 3742)

Electric resistance heating devices

Heating devices

Continuous flow type fluid heater

C392S479000

Reexamination Certificate

active

07024106

ABSTRACT:
A system and a method for melting ice that has formed in an exhaust tube operably coupled to a container holding helium are provided. The exhaust tube is configured to exhaust pressurized helium from the container. The method includes determining when a pressure level in the container is greater than a threshold pressure level. The method further includes applying heat energy to the exhaust tube to melt ice in the exhaust tube to thereby allow pressurized helium to exit the container through the exhaust tube.

REFERENCES:
patent: 4543794 (1985-10-01), Matsutani et al.
patent: 4796433 (1989-01-01), Bartlett
patent: 4824454 (1989-04-01), Kondo et al.
patent: 5936499 (1999-08-01), Eckels
patent: 2004/0168451 (2004-09-01), Bagley

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