Process and device for metering small amounts of a low boiling l

Details Process and device for metering small amounts of a low boiling l Process and device for metering small amounts of a low boiling l

1985-01-08

1986-05-06

Capossela, Ronald C.

Refrigeration

Low pressure cold trap process and apparatus

62514R, 137 13, 137803, F17C 702

Patent

active

045863431

ABSTRACT:
The invention concerns a process and device for metering small amounts of a low boiling liquified gas which flows from an orifice of a cold-insulated vessel. In this process and device the orifice of the vessel is sealed off by a gas bubble.

REFERENCES:
patent: 2436411 (1948-02-01), Weaver
patent: 2834366 (1958-05-01), Bond, Jr.
patent: 3270756 (1966-09-01), Dryden
patent: 3481205 (1969-12-01), Schmidlin
patent: 3605424 (1971-09-01), Paine
patent: 3631870 (1972-01-01), Livingston
patent: 3933003 (1976-01-01), Markum
patent: 4080802 (1978-03-01), Annable

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