Title:
Heat exchanger apparatus
United States Patent 3131758
Inventors:
Kern, Donald Q.
Hersam, Conrad O.
Publication Date:
05/05/1964
Export Citation:
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Assignee:
Kern, Donald Q.
Hersam, Conrad O.
Primary Class:
165/158
Other Classes:
29/890.047, 165/175
International Classes:
B21D53/06; F28F9/02; F28F9/16; B21D53/02; F28F9/02; F28F9/04
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US Patent References:
2868513Heat exchanger
2862694Heat exchanger
2861335Method of forming a hollow box in a metal wall
2568152Die for use with a punch
2225856Heat exchanger
2191631Brazing of thin metal structures
2164629Radiator header with metering orifice nipples and method of making same
2094341Die set
1751865Method of brazing heating coils
1439283Heat exchanger
Foreign References:
GB273605A
CA540404A