Cryogenic apparatus for sample protection in a dewar

Details Cryogenic apparatus for sample protection in a dewar Cryogenic apparatus for sample protection in a dewar

1994-05-31

1995-05-30

Kilner, Christopher

Refrigeration

Storage of solidified or liquified gas

Including cryostat

62 463, 62 78, F17C 1100, F17C 308, F25D 310

Patent

active

054191432

ABSTRACT:
An element comprised of a cryoretentive material is adapted for insertion into and support within the inner vessel of a cryogenic dewar adjacent one or more sample holders. Such a cryoretentive element may be adapted for disposition within the canister of existing sample holders and for acceptance of one or more samples, thus permitting the convenient conversion of unprotected dewars for protection against upsets and for improved sample holding times. Such elements provide a convenient and inexpensive conversion of cryogenic dewars for shipping, an improved ability to maintain samples in a cold state for longer periods of time and an improved sample holder with protection against a loss of liquid cryogen.

REFERENCES:
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patent: 4314450 (1982-02-01), Pelloux-Gervais
patent: 4455842 (1984-06-01), Granlund
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International Cryogenics, Inc. product brochure of Liquid Nitrogen Storage Vessel IC 20R.
International Cryogenics, Inc. product brochure of Liquid Nitrogen Storage Vessel IC 20VS.

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