초록 ▼

A cryogenic storage apparatus including housing, inner storage tank which may contain cryogenic fluid such as liquid nitrogen, and a lid which is used to access the storage tank. The lid preferably completely seals the storage tank when in a closed position, and includes a vent path formed between t

A cryogenic storage apparatus including housing, inner storage tank which may contain cryogenic fluid such as liquid nitrogen, and a lid which is used to access the storage tank. The lid preferably completely seals the storage tank when in a closed position, and includes a vent path formed between the storage tank and ambient. This vent path leads to the rear of the housing. A flap valve is mounted to the exit point of the vent path to allow escape of evaporated liquid nitrogen as necessary.

대표청구항 ▼

[ What is claimed is:] [1.] A cryogenic storage apparatus comprising:a housing;a cryogenic storage chamber contained within said housing and having an open end;a lid connected to said housing and operable to selectively expose the open end of said cryogenic storage chamber;a seal at least substantia

[ What is claimed is:] [1.] A cryogenic storage apparatus comprising:a housing;a cryogenic storage chamber contained within said housing and having an open end;a lid connected to said housing and operable to selectively expose the open end of said cryogenic storage chamber;a seal at least substantially surrounding the open end of said storage chamber and engageable with said lid; and,a vent path formed within said lid and leading from said cryogenic storage chamber to ambient when said lid is in a closed position, said vent path including a flap valve mounted at a rear portion of said lid for controlling gas flow through said vent path.