Metal working – Method of mechanical manufacture – Heat exchanger or boiler making
Reexamination Certificate
2006-10-17
2006-10-17
Duong, Tho (Department: 3753)
Metal working
Method of mechanical manufacture
Heat exchanger or boiler making
C165S170000
Reexamination Certificate
active
07121002
ABSTRACT:
This invention relates to a heat exchanger which is produced by connecting two walls together at a plurality of points by compression molding and sealing the edges thereof.
REFERENCES:
patent: 3425113 (1969-02-01), Ward, Jr.
patent: 3757855 (1973-09-01), Kun et al.
patent: 3774678 (1973-11-01), Glorisi
patent: 3781971 (1974-01-01), Middleton
patent: 4093024 (1978-06-01), Middleton
patent: 4531279 (1985-07-01), Gunter
patent: 4550694 (1985-11-01), Evans
patent: 4893669 (1990-01-01), Kashiwada et al.
patent: 4997031 (1991-03-01), Kashiwada et al.
Buchanan Ingeroll & Rooney
Duong Tho
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