Metal deforming – Process – Tube making or reshaping
Reexamination Certificate
2006-02-21
2009-06-09
Leo, Leonard R (Department: 3744)
Metal deforming
Process
Tube making or reshaping
C072S059000, C029S890030, C165S082000, C165S160000, C165S906000
Reexamination Certificate
active
07543471
ABSTRACT:
The invention relates to a heat exchanger, especially a heat exchanger for motor vehicles, comprising a bank of tubes through which a gaseous medium flows and around which a liquid coolant flows. The ends of said tubes are received in tube plates and are connected to the same in a material fit. The inventive heat exchanger also comprises a housing jacket which surrounds the bank of tubes and is connected, at the end thereof, to the tube plates. A coolant flows through said housing jacket. The tubes, tube plates and housing jacket are produced from a heat-resistant and corrosion-resistant metallic alloy. According to the invention, the housing jacket comprises at least one surrounding expansion flange.
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Birkert Arndt
Glöckl Hans
Haarscheidt Knut
Behr GmbH & Co.
Foley & Lardner LLP
Leo Leonard R
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