초록 ▼

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 b

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.

대표청구항 ▼

A compact and portable freezer which utilizes a liquid coolant such as liquid nitrogen, comprising: housing means having an internal freezer cavity, and having wall portions defining a freezer opening extending from said freezer cavity to without said housing; door means for selectively closing said

A compact and portable freezer which utilizes a liquid coolant such as liquid nitrogen, comprising: housing means having an internal freezer cavity, and having wall portions defining a freezer opening extending from said freezer cavity to without said housing; door means for selectively closing said freezer opening; means being manually activatable for providing the liquid coolant into said freezer cavity; tray means dimensioned for being insertable into said freezer cavity and having a rectangular configuration comprising a flat bottom wall, a pair of elongate side walls, an end wall and a front wall, said bottom wall has a plurality of spaced drain hole means to enable drainage and to expedite freezing with a collection of the liquid coolant within said freezer cavity; and means for supporting said tray means within said freezer cavity at a predetermined height.