EP1477752A3 - Improved cryogenic freezer - Google Patents

Improved cryogenic freezer Download PDF

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Publication number
EP1477752A3
EP1477752A3 EP04252790A EP04252790A EP1477752A3 EP 1477752 A3 EP1477752 A3 EP 1477752A3 EP 04252790 A EP04252790 A EP 04252790A EP 04252790 A EP04252790 A EP 04252790A EP 1477752 A3 EP1477752 A3 EP 1477752A3
Authority
EP
European Patent Office
Prior art keywords
support structure
cryogenic freezer
support
open
freezer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP04252790A
Other languages
German (de)
French (fr)
Other versions
EP1477752A2 (en
Inventor
Jeff Brooks
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Chart Inc
Original Assignee
Chart Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Chart Inc filed Critical Chart Inc
Publication of EP1477752A2 publication Critical patent/EP1477752A2/en
Publication of EP1477752A3 publication Critical patent/EP1477752A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D3/00—Devices using other cold materials; Devices using cold-storage bodies
    • F25D3/10—Devices using other cold materials; Devices using cold-storage bodies using liquefied gases, e.g. liquid air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D23/00—General constructional features
    • F25D23/06—Walls
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2201/00—Insulation
    • F25D2201/10—Insulation with respect to heat
    • F25D2201/12—Insulation with respect to heat using an insulating packing material
    • F25D2201/124—Insulation with respect to heat using an insulating packing material of fibrous type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2201/00—Insulation
    • F25D2201/10—Insulation with respect to heat
    • F25D2201/12—Insulation with respect to heat using an insulating packing material
    • F25D2201/126—Insulation with respect to heat using an insulating packing material of cellular type
    • F25D2201/1262—Insulation with respect to heat using an insulating packing material of cellular type with open cells
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2201/00—Insulation
    • F25D2201/10—Insulation with respect to heat
    • F25D2201/12—Insulation with respect to heat using an insulating packing material
    • F25D2201/128—Insulation with respect to heat using an insulating packing material of foil type
    • F25D2201/1282—Insulation with respect to heat using an insulating packing material of foil type with reflective foils
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2201/00—Insulation
    • F25D2201/10—Insulation with respect to heat
    • F25D2201/14—Insulation with respect to heat using subatmospheric pressure

Abstract

A rectangular double walled cryogenic freezer (10,110) has a vacuum space (16,116) filled with alternating layers of flexible insulating material (20,120) and a reflective material (18,118). A support structure (22,122) is also positioned in the vacuum space (16,116). The support structure (22,122) is open-celled and provides structural support for the freezer walls to prevent wall deformation when a vacuum is drawn. The support structure (22,122) may be open-cell rigid foam (122) or a support grid (22) sandwiched between two layers of rigid insulation material (26a,26b).
EP04252790A 2003-05-14 2004-05-13 Improved cryogenic freezer Withdrawn EP1477752A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US437655 2003-05-14
US10/437,655 US20040226956A1 (en) 2003-05-14 2003-05-14 Cryogenic freezer

Publications (2)

Publication Number Publication Date
EP1477752A2 EP1477752A2 (en) 2004-11-17
EP1477752A3 true EP1477752A3 (en) 2005-06-08

Family

ID=33029796

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04252790A Withdrawn EP1477752A3 (en) 2003-05-14 2004-05-13 Improved cryogenic freezer

Country Status (2)

Country Link
US (1) US20040226956A1 (en)
EP (1) EP1477752A3 (en)

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CN107850382A (en) * 2015-08-03 2018-03-27 Lg电子株式会社 Vacuum insulation element and refrigerator
US11592230B2 (en) 2015-08-03 2023-02-28 Lg Electronics Inc. Vacuum adiabatic body and refrigerator

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Publication number Priority date Publication date Assignee Title
CN107850382A (en) * 2015-08-03 2018-03-27 Lg电子株式会社 Vacuum insulation element and refrigerator
US11592230B2 (en) 2015-08-03 2023-02-28 Lg Electronics Inc. Vacuum adiabatic body and refrigerator

Also Published As

Publication number Publication date
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