Refrigeration – Cooled enclosure
Reexamination Certificate
2008-01-08
2008-01-08
Tapolcai, William E. (Department: 3744)
Refrigeration
Cooled enclosure
C312S404000
Reexamination Certificate
active
10479208
ABSTRACT:
An insulation box unit and a refrigerator of the present invention employs i) rigid urethane foam with a 8.0 MPa-or-greater bending modulus, and a 60 kg/m3-or-lower density, and ii) a vacuum insulation material. The proper bending modulus provides the insulation box unit with a substantial strength, even in the case that the coverage of the vacuum insulation material with respect to the surface of the outer box exceeds 40%. The proper density prevents the insulation box unit from poor insulation efficiency due to undesired solid thermal conductivity. Despite of an extended use of the vacuum insulation material, the insulation box unit offers an excellent insulation efficiency and therefore accelerates energy saving. According to the recycling method of the present invention, rigid urethane foam formed of tolylene di-isocyanate composition, which was separated from refrigerator wastes, is recycled as a material of rigid urethane foam.
REFERENCES:
patent: 4668555 (1987-05-01), Uekado et al.
patent: 4726974 (1988-02-01), Nowobilski et al.
patent: 4788832 (1988-12-01), Aoki et al.
patent: 5983647 (1999-11-01), Uekado et al.
patent: 6101819 (2000-08-01), Onaka et al.
patent: 6128914 (2000-10-01), Tamaoki et al.
patent: 6164030 (2000-12-01), Dietrich et al.
patent: 6355700 (2002-03-01), Uekado et al.
patent: 6660779 (2003-12-01), Uekado et al.
patent: 6802997 (2004-10-01), Uekado et al.
patent: 1 001 233 (2000-05-01), None
patent: 57-96852 (1982-06-01), None
patent: 63-187084 (1988-08-01), None
patent: 05-157446 (1993-10-01), None
patent: 7-77383 (1995-03-01), None
patent: 7-110097 (1995-04-01), None
patent: 8-68591 (1996-03-01), None
patent: 10-212332 (1998-08-01), None
patent: 10-310663 (1998-11-01), None
patent: 2-885673 (1999-02-01), None
patent: 11-159950 (1999-06-01), None
patent: 11-201375 (1999-07-01), None
patent: 2000-18486 (2000-01-01), None
patent: 2000-65287 (2000-03-01), None
patent: 2000-247917 (2000-09-01), None
patent: 2000-312875 (2000-11-01), None
International Preliminary Examination Report for Application No. PCT/JP02/05398, Jun. 17, 2003.
International Search Report for Application No. PCT/JP02/05398, Sep. 17, 2002 with partial English translation.
Supplementary Partial European Search Report for Application No. PCT/JP02/05398, filed May 31, 2002.
Nakano Akira
Ohashi Yoshiki
Sasaki Masato
Uekado Kazutaka
Matsushita Refrigeration Company
RatnerPrestia
Tapolcai William E.
LandOfFree
Insulated box body, refrigerator having the box body, and... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Insulated box body, refrigerator having the box body, and..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Insulated box body, refrigerator having the box body, and... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3904581