Liquid nitrogen freezer

Details Liquid nitrogen freezer Liquid nitrogen freezer

1985-04-01

1986-04-08

Capossela, Ronald C.

Refrigeration

Portable, commodity-containing

62382, 62457, 62514R, F25D 308

Patent

active

045804117

ABSTRACT:
A portable compact liquified gas refrigeration system and apparatus comprising a freezer housing, a liquid delivery system, a liner and a tray means. The freezer housing is constructed for being relatively light weight and having an interior cavity, a sloped door opening, rear venting ports, and a bottom wall member. The liner includes a plurality of elongate parallel tray support rails or tracks. The liquid delivery system includes a manifold within said cavity and a valve mechanism for controlling the flow of liquified gas to the manifold. The liner has a sloped end wall to facilitate tray removal from the freezer housing. The tray has a plurality of holes to enable liquified gas transference or flow between the tray and the liner.

REFERENCES:
patent: 3257820 (1966-06-01), Case et al.
patent: 3633381 (1972-01-01), Haaf
patent: 3693371 (1972-09-01), Clark
patent: 3820352 (1974-06-01), Mahler
patent: 4026351 (1977-05-01), Biava
patent: 4054037 (1977-10-01), Yoder

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