Dispensing system employing liquid cryogen

Details Dispensing system employing liquid cryogen Dispensing system employing liquid cryogen

1978-08-25

1980-05-06

Spar, Robert J.

Dispensing

With discharge assistant

Fluid pressure

128DIG27, 222399, 239302, B65D 8314

Patent

active

042013194

ABSTRACT:
A system for dispensing a cryogen such as liquid nitrogen. The system employs two vessels containing the liquid cryogen. One serves as a pressure vessel and the other as a storage vessel. Liquid from the pressure vessel is vaporized in a ballast chamber exposed to ambient temperature, resulting in pressurized refrigerant gas. A valve selectively admits the pressurized gas into the liquid storage vessel, causing the stored liquid to be dispensed at a selected site.

REFERENCES:
patent: 2131516 (1938-09-01), Leffert et al.
patent: 2589728 (1952-03-01), Pratt
patent: 2784712 (1957-03-01), Cassidy
patent: 2805037 (1957-09-01), Bruce
patent: 3794039 (1974-02-01), Kollner et al.

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