초록 ▼

A cryostat for maintaining an inventory of a liquefied cryogen including a vacuum jacketed reservoir (Dewar) containing heat shields in the vacuum jacket, the heat shields cooled to different temperatures and a cryogen recondenser cooled by a cryogenic refrigerator. Included in the cryostat is an ac

A cryostat for maintaining an inventory of a liquefied cryogen including a vacuum jacketed reservoir (Dewar) containing heat shields in the vacuum jacket, the heat shields cooled to different temperatures and a cryogen recondenser cooled by a cryogenic refrigerator. Included in the cryostat is an access passage to place objects in the cryogen and to support the refrigerator, the access passage including means to remove the refrigerator without opening the liquid cryogen to ambient atmosphere.

대표청구항 ▼

A Cryostat comprising in combination: a vacuum jacketed reservoir for receiving and holding a supply of liquid cryogen including at least one means for access to said liquid cryogen from outside said reservoir; means in said vacuum jacket and said access means to intercept heat infiltrating into sai

A Cryostat comprising in combination: a vacuum jacketed reservoir for receiving and holding a supply of liquid cryogen including at least one means for access to said liquid cryogen from outside said reservoir; means in said vacuum jacket and said access means to intercept heat infiltrating into said reservoir; and refrigeration means to maintain said heat intercepting means at a temperature between that of the liquid cryogen and ambient and recondense liquid cryogen boil-off from said reservoir.