Freeze isolation seal

Details Freeze isolation seal Freeze isolation seal

1979-02-21

1981-05-19

Makay, Albert J.

Refrigeration

Processes

Congealing flowable material, e.g., ice making

62293, 285 45, 403344, 138 97, F25C 100

Patent

active

042676991

ABSTRACT:
Cold gas is used to freeze liquid in a pipe without directly encountering the pipe wall, which is surrounded and reinforced by a clamp assembly within a housing through which the gas flows. Gas temperature at an outlet from the housing is monitored for control of the rate of gas to provide a uniform cool down rate, avoiding thermal shock to the pipe.

REFERENCES:
patent: 317794 (1885-05-01), Jackson
patent: 3427051 (1969-02-01), White et al.
patent: 3550638 (1970-12-01), Smith
patent: 3559423 (1971-02-01), Scheidler
patent: 3742723 (1973-07-01), Grise
patent: 3917424 (1975-11-01), Zugel
patent: 3922008 (1975-11-01), Stiner et al.
patent: 4096886 (1978-06-01), Daspit
patent: 4112706 (1978-09-01), Brister

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