Device for and method of producing hyperfine frozen particles

Details Device for and method of producing hyperfine frozen particles Device for and method of producing hyperfine frozen particles

1992-03-04

1993-06-08

Capossela, Ronald C.

Refrigeration

Processes

Treating an article

62121, 62304, F25D 1306

Patent

active

052168905

ABSTRACT:
A device for and a method of producing hyperfine frozen particles reduces the quantity of impurity particles in the hyperfine frozen particles produced and stabilizes the generation of hyperfine frozen particles. A hopper includes a heat exchanger through which a coolant, such as nitrogen gas or liquid nitrogen, is circulated. A nitrogen gas inlet through which low temperature nitrogen gas as a coolant is supplied includes a filter to produce a laminar flow of the gas.

REFERENCES:
patent: 3319344 (1967-05-01), Saschel et al.
patent: 3364690 (1968-01-01), Torobin
patent: 3670520 (1972-06-01), Boniteil
patent: 4869090 (1989-09-01), Tada et al.
patent: 4932168 (1990-06-01), Tada et al.
Schmidt et al., "Ausfriern von Eis an vibrierten Kuhlflachen", Chemie Ingenieur Technik 49, 1977, p. 169.
Ohmori et al, "Ultra Clean Ice Scrubber Cleaning With Jetting Fine Ice Particles", 176th ECS, 1989, p. 551.

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