EP 1477752 A3 20050608 - Improved cryogenic freezer
Title (en)
Improved cryogenic freezer
Title (de)
Tiefgefriervorrichtung
Title (fr)
Congélateur cryogénique
Publication
Application
Priority
US 43765503 A 20030514
Abstract (en)
[origin: EP1477752A2] 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). <IMAGE>
IPC 1-7
IPC 8 full level
F25D 3/10 (2006.01); F25D 23/06 (2006.01)
CPC (source: EP US)
F25D 3/10 (2013.01 - EP US); F25D 23/06 (2013.01 - EP US); F25D 2201/124 (2013.01 - EP US); F25D 2201/1262 (2013.01 - EP US); F25D 2201/1282 (2013.01 - EP US); F25D 2201/14 (2013.01 - EP US)
Citation (search report)
- [DXA] US 6230500 B1 20010515 - MAO ZHENNING [US], et al
- [XA] WO 02052208 A1 20020704 - ARCELIK AS [TR], et al
- [A] US 3167933 A 19650202 - BECKMAN JOHN H, et al
- [A] NL 1005962 C1 19981103 - POL RUDOLF WOLFGANG VAN DER [NL]
- [A] EP 0437930 A1 19910724 - WHIRLPOOL CO [US]
- [A] US 6266941 B1 20010731 - NISHIMOTO YOSHIO [JP]
- [A] US 5505810 A 19960409 - KIRBY DAVID B [US], et al
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
EP 1477752 A2 20041117; EP 1477752 A3 20050608; US 2004226956 A1 20041118
DOCDB simple family (application)
EP 04252790 A 20040513; US 43765503 A 20030514